Table Of Contents
New Software Features Supported in Cisco IOS Release 12.3(19)
New Hardware and Software Features Supported in Cisco IOS Release 12.3(18)
New Software Features Supported in Cisco IOS Release 12.3(17)
Async Information in Cisco-NAS-Port VSA
Configurable Seizure to Acknowledge Timer for the Cisco 7x00 Voice Cards
Nextport IFD Queue Information
Support Directly Connected Addresses in AutoRP Candidate RP
New Hardware and Software Features Supported in Cisco IOS Release 12.3(16)
New Hardware Features Supported in Cisco IOS Release 12.3(15)
New Software Features Supported in Cisco IOS Release 12.3(15)
New Hardware and Software Features Supported in Cisco IOS Release 12.3(13)
New Hardware Features Supported in Cisco IOS Release 12.3(12a)
VPN Acceleration Module 2+ (VAM2+)
New Software Features Supported in Cisco IOS Release 12.3(12)
New Hardware and Software Features Supported in Cisco IOS Release 12.3(10)
New Software Features Supported in Cisco IOS Release 12.3(9)
DHCP Statically Configured Routes Using a DHCP Gateway
Enhanced ITU-T G.168 Echo Cancellation
New Software Features Supported in Cisco IOS Release 12.3(6)
MPLS Label Distribution Protocol MIB Version 8 Upgrade
MPLS VPN Support for EIGRP Between Provider Edge and Customer Edge
NAT Integration with MPLS VPNs (VRF-NAT)
QA Error Recovery for the Cisco 7500 Series
New Hardware Features Supported in Cisco IOS Release 12.3(5)
DES/3DES/AES VPN Encryption Module (AIM-VPN/BPII)
VIC2-2FXS, VIC2-2E/M, VIC2-2FXO, VIC2-4FXO, VIC2-2BRI-NT/TE
New Software Features Supported in Cisco IOS Release 12.3(5)
New Hardware and Software Features Supported in Cisco IOS Release 12.3(3)
New Hardware Features Supported in Cisco IOS Release 12.3(1)
1 and 2 Port Channelized T1/E1/PRI Network Module (NM-1CE1T1-PRI and NM-2CE1T1-PRI)
1 port BRI S/T WAN Interface Card (WIC-1B-S/T-V2)
1-Port DSU/CSU T1 WIC for the Cisco 1700, Cisco 2600, Cisco 3600, and Cisco 3700 Series Routers
PA-POS-2OC3: 2-port Packet over SONET OC3c/STM1 Port Adapter
VPN Acceleration Module 2 (VAM2)
New Software Features Supported in Cisco IOS Release 12.3(1)
Cisco Fax Services over IP Application Guide
Cisco IOS TCL IVR and VoiceXML Application Guide
DSP Voice-Quality Statistics in DLCX Messages
Enhanced ITU-T G.168 Echo Cancellation for the Cisco AS5300
Firewall Authentication Proxy for FTP and Telnet Sessions
Firewall Support of Skinny Client Control Protocol (SCCP)
Gatekeeper Enhancements for Managed Voice Services
Gateway Codec Order Preservation and Shutdown Control
ISDN BCAC and Round-Robin Channel Selection Enhancements
PKI Integration with AAA Server
RADIUS Server Reorder on Failure
SAA for Frame Relay Interfaces
Serial Link Parameter Monitoring and Control
T.38 Call Agent Driven Fax for Cisco IOS Voice Gateways
Telephony Gateway Registration Protocol on Cisco IOS Gateways
V.92 Reporting Using RADIUS Attribute v.92-info
New Hardware Features Supported in Cisco IOS Release 12.3
1 and 2-port T1/E1 Multiflex Voice/WAN Interface Card
1- and 2-Port V.90 Modem WICs for Cisco 1720, 1751, and 1760 Routers
1- and 2-Port V.90 Modem WICs for Cisco 2600 and Cisco 3600 Series Multiservice Platforms
1-Port ADSL WAN Interface Card
1-Port ADSL WAN Interface Card for Cisco 2600 Series and Cisco 3600 Series Routers
1-Port ADSL WAN Interface for the Cisco IAD2420 Series
1 Port Enhanced ATM Port Adapter with Support for 8K VCs
1-Port G.SHDSL WAN Interface Card for Cisco 2600 Series and Cisco 3600 Series Routers
16-Port Ethernet Switch Module for Cisco 2600 Series and Cisco 3600 Series
1-Port T1/E1 Digital Voice Port Adapters for Cisco 7200 and Cisco 7500
36-Port Ethernet Switch Module for Cisco 2600 Series and Cisco 3600 Series
56K CSU Support for the Cisco Signaling Link Terminal
8-Port Mix-Enabled T1/E1/PRI PA
Analog Station Interface (ASI) Cards
Catalyst 4224 Access Gateway Switch
Catalyst 4500 Access Gateway Module 16-port RJ21 FXS Module (WS-U4604-16FXS)
Catalyst 4500 AGM Voice/WAN Bundle (WS-X4604-VOICE)
Cisco 3631 Router Enhanced Functionality
Cisco 3725 Application Service Router
Cisco 3725 Router, Cisco 3745 Router, Cisco 2691 Router Enhanced Functionality
Cisco 3745 Application Service Router
Cisco 7401 ASR-BB and Cisco 7401 ASR-CP
Cisco 806 Broadband Gateway Router
Cisco AS5350 Universal Gateway
Cisco AS5850 Universal Gateway
Cisco CVA122 Cable Voice Adapter
Cisco CVA122E Cable Voice Adapter
Cisco High-Density Analog Voice and Fax Network Module
Cisco uBR905 Cable Access Router
Cisco uBR925 Cable Access Router
Digital J1 Voice Interface Card
Gigabit Ethernet Network Module
Multichannel STM-1 Port Adapter
NM-AIC-64, Contact Closure Network Module
SDH/STM-1 Trunk Card for Cisco AS5850 Universal Gateway
Small Office, Home Office ADSL Router
Update to the Enhancements for the Cisco Voice Gateway 200
VPN Encryption and Compression Module (AIM-VPN/EPII & AIM-VPN/HPII)
WT-2750 Multipoint Broadband Wireless System
New Software Features Supported in Cisco IOS Release 12.3
Ability to Disable Extended Authentication for Static IPSec Peers
Accounting of VPDN Disconnect Cause
ACL Authentication of Incoming rsh and rcp Requests
Adaptive Frame Relay Traffic Shaping for Interface Congestion
Analog DID (Direct Inward Dial)
Analog DID for Cisco 2600 and Cisco 3600 Series Routers
Asynchronous Serial Traffic Over User Datagram Protocol (UDP)
ATM PVC Bundle Enhancement — MPLS EXP-Based PVC Selection
ATM PVC Range and Routed Bridge Encapsulation Subinterface Grouping
ATM Service Level Monitoring (SLM)
ATM SNMP Trap and OAM Enhancements
ATM Software Segmentation and Reassembly (SAR)
ATM SVC Troubleshooting Enhancements
AutoInstall over Frame Relay-ATM Interworking Connections
Automatic Bandwidth Adjustment for MPLS Traffic Engineering Tunnels
Automatic Protection Switching (APS)
Barge-In and Busy Line Verify Operator Services
BGP Conditional Route Injection
BGP Hide Local-Autonomous System
BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN
BGP Prefix-Based Outbound Route Filtering
Bisync-to-IP Conversion for Automated Teller Machines
Call Admission Control Based on CPU Utilization
Call Admission Control for H.323 VoIP Gateways
Call Transfer Capabilities Using the Refer Method
CDP and ODR Support for ATM PVCs
CEF and Distributed CEF Switching for IPv6
CEF-Switched Multipoint GRE Tunnels
Certificate Enrollment Enhancements
Circuit Interface Identification Persistence for SNMP
Cisco 2600 and 3600 Routers MGCP Voice Gateway Interoperability with Cisco CallManager
Cisco Discovery Protocol (CDP)—IPv6 Address Family Support for Neighbor Information
Cisco Gateway Management Agent
Cisco H.323 Scalability and Interoperability Enhancements
Cisco High-Performance Gatekeeper
Cisco IOS Firewall Performance Improvements
Cisco IOS Firewall Stateful Inspection of ICMP
Cisco IOS Firewall Support for SIP
Cisco IOS IPv6 Configuration Library
Cisco IOS Server Load Balancing
Cisco IOS Telephony Service Version 2.01
Cisco IOS Voice Features on IGX 8400 Series Universal Router Module
Cisco Mobile Networks—Dynamic Network Support
Cisco Quality of Service Device Manager 2.0 Support for Cisco 1700 Series Routers
Cisco Service Assurance Agent Support for the Cisco 820 Series and SOHO 70 Series
Cisco Signaling Link Terminal G.732 Support
CISCO-BULK-FILE-MIB Enhancements
CISCO-SIP-UA-MIB Enhancements Providing Functional Parity to SIP related CLI
Class-Based Weighted Fair Queueing (CBWFQ)
Classifying VoIP Signaling and Media with DSCP for QoS
Configurable PSTN Cause Code to SIP Response Mapping
Connection-Oriented Media (Comedia) Enhancements for SIP
Control Plane DSCP Support for RSVP
Crashinfo Support for Cisco 3600 Series
Customer Profile Idle Timer Enhancements for Interesting Traffic
DF Bit Override Functionality with IPSec Tunnels
DFP Support in DistributedDirector
DHCP Client—Dynamic Subnet Allocation API
DHCP Option 82 Support for Routed Bridge Encapsulation
DHCP Relay Agent Support for Unnumbered Interfaces
DHCP Server Import All Enhancement
DHCP Server—On-Demand Address Pool Manager
DHCP Server—Option to Ignore All BOOTP Requests
DHCP Server Options Import and Autoconfiguration
Dialer Map VRF-Aware for an MPLS VPN
Dial-Peer Configuration Command Default Value Changes
Diff-Serv-aware MPLS Traffic Engineering (DS-TE)
Direct Inward Dialing for Cisco IAD2420 Series Integrated Access Devices
DistributedDirector Boomerang Support
DistributedDirector Cache Auto Refresh
DistributedDirector Configurable Cache
DistributedDirector Enhancements for Cisco IOS Release 12.2(4)T3
DistributedDirector MIB Support
Distributed IPv6 for Cisco IOS Software
Distributed Link Fragmentation and Interleaving over Leased Lines
Distributed Management Event and Expression MIB Persistence
Distributed Management Event MIB Conformance to RFC 2981
Distributed Multilink Point-to-Point Protocol for Cisco 7500 Series Routers
Distributed Time-Based Access Lists
Distinguished Name Based Crypto Maps
DLR Enhancements: PGM RFC-3208 Compliance
DNS Client AAAA Record Lookups over IPv6
DNS Server Support for NS Records
Dual Serial Line Management to Interface Lucent 5ESS
Dual Tone Multifrequency Relay for SIP Calls Using Named Telephone Events
Enabling Fax Rate on POTS to POTS Fax Calls
Encrypted Vendor-Specific Attributes
Enhanced Billing Support for SIP Gateways
Enhanced Multi-Language Support for Cisco IOS Interactive Voice Response
Enhancement to the show standby Command
Enhancements for the Cisco VG200 Voice Gateway
Update to the Enhancements for the Cisco Voice Gateway 200
Enhancements to H.323 Call Statistics
EXEC Commands in Configuration Mode
Fax and Modem Pass-Through over VoIP
Fax Detection for Cisco 2600 Series and Cisco 3600 Series Routers
Featurettes and Supplementary Voice Services for Cisco 800 Series Routers
File System Check and Repair for PCMCIA ATA Disks
Firewall Feature Set for Cisco 820 Series Routers
Four SS7 Link Support on the Cisco Signaling Link Terminal
Frame Relay Discard Eligibility Bit Setting
Frame Relay Point-Multipoint Wireless
Frame Relay PVC Bundles with IP and MPLS QoS Support
Frame Relay Queueing and Fragmentation at the Interface
Functionality Changed for the tunnel mpls traffic-eng autoroute metric Command
FXO Answer and Disconnect Supervision
Gatekeeper-to-Gatekeeper Authentication
Gatekeeper Transaction Message Protocol Interface Resiliency Enhancement
Generic Routing Encapsulation (GRE) Tunnel Keepalive
GKTMP Security Token Enhancement
G.SHDSL Symmetric DSL Support for Cisco IAD2420 Series IAD
H.323 Call Redirection Enhancements
H.323 Dual Tone Multifrequency Relay Using Named Telephone Events
H.323 Support for Virtual Interfaces
ICMP ECHO-Based RTT Probing by DRP Agents
IGMP MIB Support Enhancements for SNMP
IGMP Version 3—Explicit Tracking of Hosts, Groups, and Channels
Integrated IS-IS Multi-Topology Support for IPv6
Integrated IS-IS Point-to-Point Adjacency Over Broadcast Media
Integrated IS-IS Support for IPv6
Interactive Voice Response Version 2.0 on Cisco VoIP Gateways
Interactive Voice Response Version 2.0 on VoIP Gateways
Inter-Domain Gatekeeper Security Enhancement
Interface Alias Long Name Support
Interim Local Management Interface (ILMI)
Interim Update at Call Connect
Interim-Interswitch Signaling Protocol (IISP)
Interworking Signaling Enhancements for H.323 and SIP VoIP
IP Header Compression Enhancement—PPPoATM and PPPoFR Support
IPSec and 3DES Feature Set for Cisco 820 Series Routers
IPSec VPN High Availability Enhancements
IP to ATM Class of Service Mapping for SVC Bundles
ISDN and V.120 Support for NextPort DSPs
ISDN Progress Indicator Support for SIP Using 183 Session Progress
ISIS: Allows BGP to Control the Configuration of the Overload Bit
IVR: Enhanced Multilanguage Support
Large-Scale Dial-Out (LSDO) VRF Aware
Leased and Switched BRI Interfaces for ETSI NET3
Location Confirmation Enhancements for Alternate Endpoints
Low Latency Queueing with Priority Percentage Support
LZ Software with Hardware Encryption
Media Gateway Control Protocol-Based Fax (T.38) and Dual Tone Multifrequency (IETF RFC 2833) Relay
MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles
MGCP Based Fax (T.38) and DTMF Relay
MGCP Basic CLASS and Operator Services
MGCP CAS PBX and AAL2 PVC with Basic CLASS and Operator Services
MGCP CAS PBX and PRI Signaling Backhaul on Cisco 7200 Routers
MGCP Generic Configuration Support for Call Manager (IP-PBX)
MGCP Line Package Enhancements for Loop Current Feed Open (LCFO)
MGCP PRI Backhaul and T1-CAS Support for Call Manager (IP-PBX)
MGCP Voice on Cisco AS5850 Universal Gateway
MGCP VoIP Call Admission Control
MGCP VoIP Signaling for 1750 Series
Mobile IP —IPSec for Home Agent to Foreign Agent Tunnel
Mobile IP MIB Support for SNMP
Mobile IP—Fastswitching Support on Foreign Agent
Mobile IP—Generic NAI Support and Home Address Allocation
Mobile IP—MIB Support for NAI and HA Redundancy
Mobile IP—Private Addressing Support
Modem Script and System Script Support in Large-Scale Dial-Out
MPLS Diff-Serv-aware Traffic Engineering (DS-TE) over ATM
MPLS Label Distribution Protocol (LDP)
MPLS Label Distribution Protocol (LDP) MIB
MPLS Label Switch Controller and Enhancements
MPLS Label Switching Router MIB
MPLS Over ATM: Virtual Circuit (VC) Merge
MPLS QoS Multi-VC Mode for PA-A3
MPLS Traffic Engineering (TE) MIB
MPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for TE Tunnels
MPLS Traffic Engineering (TE)—IP Explicit Address Exclusion
MPLS VPN Carrier Supporting Carrier
Multicast Music on Hold Support for Call Manager (IP-PBX)
Multilink Frame Relay (FRF.16)
Multiprotocol BGP (MP-BGP) Support for CLNS
Multiservice Interchange (MIX) for Cisco 2600 and 3600 Series Modular Access Routers
NAT—Ability to Use Route Maps with Static Translations
NAT—Static Mapping Support with HSRP for High Availability
NAT-Support of H.323 v2 Call Signaling
NAT—Translation of External IP Addresses Only
NetFlow Multiple Export Destinations
NetFlow ToS-Based Router Aggregation
NetWare Link Services Protocol (NLSP)
Network Access Server (NAS) Package for MGCP
Network-Based Application Recognition and Distributed Network-Based Application Recognition
Nonblocking Gatekeeper AAA Interface
Nonstop Forwarding Enhanced FIB Refresh
Offload Server Accounting Enhancement
OSPF Sham-Link Support for MPLS VPN
OSPF Stub Router Advertisement
OSPF Update Packet-Pacing Configurable Timers
PIM MIB Extension for IP Multicast
Policer Enhancement — Multiple Actions
PPPoA/PPPoE Autosense for ATM PVCs
Preauthentication with ISDN PRI and Channel-Associated Signaling Enhancements
PRI Backhaul Using the Stream Control Transmission Protocol and the ISDN Q.921 User Adaptation Layer
PRI/Q.931 Signaling Backhaul for Call Agent Applications
PSTN Fallback for Cisco 7200 and 7500 Series Routers
Quality of Service for Virtual Private Networks
RADIUS Attribute 52 and Attribute 53 Gigaword Support
RADIUS Attribute 66 (Tunnel-Client-Endpoint) Enhancements
RADIUS Attribute 82: Tunnel Assignment ID
RADIUS Number Translation VSAs for VoIP
RADIUS Tunnel Preference for Load Balancing and Fail-Over
Reverse Path Forwarding - Source Exists Only
RPR+ (Route Processor Redundancy Plus) on Cisco 7500 Series Routers
RSVP Support for Low Latency Queueing
Secure Shell (SSH) Support over IPv6
Secure Shell (SSH) Version 1 Server Support
Sequential Location Request Enhancement
Service Assurance Agent (SAA) Application Performance Monitor (APM)
Service Assurance Agent (SAA) Support for Frame Relay, VoIP, and MPLS VPN Monitoring
Session Initiation Protocol (SIP) for VoIP
Shell-Based Authentication of VPDN Users
Simple Network-Enabled Auto-Provisioning for Cisco IAD2420 Series IADs
SIP Diversion Header Implementation for Redirecting Number
SIP Gateway Compliance to RFC2543-bis-04
SIP Gateway Support for the Bind Command
SIP Gateway Support for Third-Party Call Control
SIP Gateway Support of RSVP and TEL URL
SIP INVITE Request with Malformed Via Header
SIP T.37 Store and Forward Fax
SIP—Configurable PSTN Cause Code Mapping
SIP—DNS SRV RFC2782 Compliance
SIP—Session Initiation Protocol for VoIP
SIP—Session Initiation Protocol for VoIP Enhancements
SNMP IF-MIB Support for VLAN (ISL, 802.1Q) Subinterfaces
SNMP Trap Support for the Virtual Switch Interface Master MIB
Speech Recognition and Synthesis for Voice Applications
SS7 Four-Link Support for Cisco Signaling Link Terminal
Static Cache Entry for IPv6 Neighbor Discovery
Stream Control Transmission Protocol (SCTP), Release 1
Stream Control Transmission Protocol (SCTP), Release 2
Supplementary Telephone Services for the Euro-ISDN Switch
Survivable Remote Site Telephony
Survivable Remote Site Telephony Version 2.01
T.37/T.38 Fax Gateway and Fax Detection for Cisco 1751, Cisco 3725, and Cisco 3745
T.37/T.38 Fax Gateway for Cisco 2600 Series Routers and Cisco 3600 Series Routers
T.38 Fax Services for Cisco 1750 Access Routers
T1 Channel Associated Signaling (CAS)
TCL IVR 2.0 Call Initiation and Callback
TCL IVR disconnect cause-code Manipulation
TCL-Enabled Signaling Parameter Mapping
Timer and Retry Enhancements for L2TP and L2F
Trimble Palisade NTP Synchronization Driver for the Cisco 7200 Series Routers
Triple Data Encryption Standard Feature Set for Cisco 820 Series Routers
Unspecified Bit Rate Plus (UBR+) and ATM Enhancements for Service Provider Integrated Access
Update to the MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles Feature
Using 31-Bit Prefixes on IPv4 Point-to-Point Links
VoAAL2 Profile 9 Support for BLES Interoperability
Voice Application Access To SS7 Signaling
Voice over ATM with AAL2 Trunking on Cisco 7200 Series Routers
Voice over IP Q.SIG Network Transparency
Voice Support for Japan on Cisco 800 Series Routers, Phase 2
VoiceXML Media Volume and Rate Controls
VoiceXML SS7 ISUP Session Variables
VoiceXML Transfer Enhancements
VoiceXML Voice Store and Forward
VoIP Call Admission Control Using RSVP
VPN Routing Forwarding (VRF) Framed Route (Pool) Assignment via PPP
WRED Enhancement—Explicit Congestion Notification (ECN)
X.25 Annex G Session Status Change Reporting
X.25 Record Boundary Preservation for Data Communications Networks
Deprecated and Replacement MIBs
SNMP Version 1 BGP4-MIB Limitations
Important Notes for Cisco IOS Release 12.3
Configuring MD5 Authentication for BGP Peering Sessions
Important Notes for Cisco IOS Release 12.3(10)
Configuring the IP Static Route Adjustment Interval
ip nat service fullrange Command
Important Notes for Cisco IOS Release 12.3(6)
debug vwic-mft firmware controller Command
Important Notes for Cisco IOS Release 12.3(5)
Cisco Images Deferred Because of Caveat CSCed00975
Important Notes for Cisco IOS Release 12.3(3a)
Cisco Images Deferred Because of Caveat CSCec06547
Important Notes for Cisco IOS Release 12.3(3)
Cisco Images Deferred Because of Caveat CSCec06547
Cisco Images Deferred Because of Caveat CSCin50865
Important Notes for Cisco IOS Release 12.3(1a)
Cisco Images Deferred Because of Caveat CSCec06547
Cisco Platforms Deferred Because of Caveats CSCeb49708, CSCec06547, and CSCin50865
Important Notes for Cisco IOS Release 12.3(1)
Cisco Images Deferred Because of Caveat CSCdy01600
Cisco Images Deferred Because of Caveats CSCea31186, CSCeb49708, and CSCeb49797
Cisco Images Deferred Because of Caveat CSCeb31735
Cisco Images Deferred Because of Caveat CSCec06547
Cisco Platforms Deferred Because of Caveats CSCeb49708, CSCec06547, and CSCin50865
Caveats for Cisco IOS Release 12.3
New and Changed Information
This section lists the new hardware and software features that are supported in Cisco IOS Release 12.3 and contains the following sections:
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New Software Features Supported in Cisco IOS Release 12.3(19)
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Note
New Hardware and Software Features Supported in Cisco IOS Release 12.3(20) through Cisco IOS Release 12.3(22)
There are no new hardware or software features supported in Cisco IOS Release 12.3(20) through Cisco IOS Release 12.3(22).
New Software Features Supported in Cisco IOS Release 12.3(19)
This section describes new and changed features in Cisco IOS Release 12.3(19). Some features may be new to Cisco IOS Release 12.3(19) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(19). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
ACL IP Options Selective Drop
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/sel_drop.htm
New Hardware and Software Features Supported in Cisco IOS Release 12.3(18)
There are no new hardware or software features supported in Cisco IOS Release 12.3(18).
New Software Features Supported in Cisco IOS Release 12.3(17)
This section describes new and changed features in Cisco IOS Release 12.3(17). Some features may be new to Cisco IOS Release 12.3(17) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(17). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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Async Information in Cisco-NAS-Port VSA
This command enables the display of physical interface information and parent interface details as part of the of the cisco-nas-port vendor-specific attribute (VSA) for login calls.
aaa nas cisco-nas-port use-async-info
For detailed information about this command, see the following document:
/en/US/docs/ios/12_3/security/command/reference/sec_a1g.html#wp1095955
CLI for Buffer Element Tuning
This command change is implemented as part of CSCsc07946 to add support to increase the number of permanent buffer elements to prevent packet drop by modifying the buffers element command.
buffers element permanent elements
no buffers element permanent elements
For detailed information about this command, see the following document:
/en/US/docs/ios/12_3/configfun/command/reference/cfr_1g01.html#wp1031370
Configurable Seizure to Acknowledge Timer for the Cisco 7x00 Voice Cards
This feature adds support for the seizure-ack-time command on the Cisco 7x00 voice cards. The seizure-ack-time command is used to configure a timer that controls the routers response to a seizure from the switch. This configurable timer is required for interoperability with certain R2 switches that require the router to respond to a seizure more quickly than the default timer value of 100 milliseconds .
Nextport IFD Queue Information
This feature adds support for obtaining IFD queues information with Nextport by enhancing the show nextport command.
show nextport ifd queue slot/port [data | voice | gdb | est | control]
Support Directly Connected Addresses in AutoRP Candidate RP
This feature adds support for the advertisement of directly connected IP addresses in RP-announce messages by modifying the ip pim send-rp-announce command:
ip pim [vrf vrf-name] send-rp-announce {interface-type interface-number | ip-address}
scope ttl-value [group-list access-list] [interval seconds] [bidir]no ip pim [vrf vrf-name] send-rp-announce {interface-type interface-number | ip-address}
For detailed information about this feature, see the following document:
/en/US/docs/ios/12_3/ipmulti/command/reference/ip3_i2g.html#wp1073699
New Hardware and Software Features Supported in Cisco IOS Release 12.3(16)
There are no new hardware or software features supported in Cisco IOS Release 12.3(16).
New Hardware Features Supported in Cisco IOS Release 12.3(15)
There are no new hardware features supported in Cisco IOS Release 12.3(15).
New Software Features Supported in Cisco IOS Release 12.3(15)
This section describes new and changed features in Cisco IOS Release 12.3(15). Some features may be new to Cisco IOS Release 12.3(15) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(15). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
VIP-Wedge-Trap
The VIP-Wedge-Trap feature sends a trap to the network management system (NMS) to inform SNMP when a Versatile Interface Processor (VIP) line card on a Cisco 7500 series router enters a wedged failure state. This feature proactively notifies the NMS of the wedged failure condition before the VIP crashes.
New Hardware and Software Features Supported in Cisco IOS Release 12.3(13)
There are no new hardware or software features supported in Cisco IOS Release 12.3(13).
New Hardware Features Supported in Cisco IOS Release 12.3(12a)
This section describes new and changed features in Cisco IOS Release 12.3(12a). Some features may be new to Cisco IOS Release 12.3(12a) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(12a). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.
VPN Acceleration Module 2+ (VAM2+)
The VPN Acceleration Module 2+ (VAM2+) is a port adapter that installs in any single port-adapter slot on the Cisco7204VXR or Cisco 7206VXR router with the NPE-225, NPE-400, or NPE-G1 processor, or the Cisco 7301 router.
VAM2+ features hardware acceleration for Advanced Encryption Standard (AES), Data Encryption Standard (DES), and Triple DES (3DES), providing increased performance for site-to-site and remote-access IPSec VPN services. The Cisco VAM2+ provides hardware-assisted Layer 3 compression services with its encryption services, conserving bandwidth and lowering network connection costs over secured links, as well as full Layer 3 routing, quality of service (QoS), multicast and multiprotocol traffic, and broad support of integrated LAN/WAN media.
For detailed information about this feature, see the following documents:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_11/ft_vam2p.htm
http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/portadpt/vam2p/vam2p_in.htm
New Software Features Supported in Cisco IOS Release 12.3(12)
This section describes new and changed features in Cisco IOS Release 12.3(12). Some features may be new to Cisco IOS Release 12.3(12) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(12). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
Hot Standby MAC Address
The show extended channel hsma command is added to this feature.
Refer to the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ft_hsma.htm
New Hardware and Software Features Supported in Cisco IOS Release 12.3(10)
There are no new hardware or software features supported in Cisco IOS Release 12.3(10).
New Software Features Supported in Cisco IOS Release 12.3(9)
This section describes new and changed features in Cisco IOS Release 12.3(9). Some features may be new to Cisco IOS Release 12.3(9) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(9). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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CNS Zero Touch
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/g_zerot.htm
DHCP Statically Configured Routes Using a DHCP Gateway
The DHCP Statically Configured Routes Using a DHCP Gateway feature enables the configuration of static routes that point to an assigned DHCP next-hop router (provided by DHCP option 3). The static routes are active only when the DHCP server provides the next-hop IP address. The routes remain in the routing table until the DHCP lease expires at which time the routes are removed. The dhcp keyword was added to the ip route command to point to an assigned DHCP next-hop router (option 3 router). The benefit of this feature is that it eliminates the need to configure static routes to an outside interface and the configuration of a next-hop router.
Enhanced ITU-T G.168 Echo Cancellation
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/int_c/vclport.htm#wp1364221
LVC Path Trace
The LVC Path Trace feature enables you to display the path of an established LVC. The show mpls atm-ldp bindings command has been updated with the path keyword. By displaying the path of an LVC, it is easier to troubleshoot outages in an MPLS LSC network.
Upgrade Secondary ROMmon CLI
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/12s28fur.htm
New Software Features Supported in Cisco IOS Release 12.3(6)
This section describes new and changed features in Cisco IOS Release 12.3(6). Some features may be new to Cisco IOS Release 12.3(6) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(6). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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AAA Dead-Server Detection
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gt_adsd.htm
DHCP ODAP Server Support
The DHCP ODAP Server Support feature was integrated into Cisco IOS Release 12.3(6) and implemented on the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
DHCP Relay—MPLS VPN Support
The DHCP Relay—MPLS VPN Support feature was integrated into Cisco IOS Release 12.3(6) and implemented on the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
MPLS Label Distribution Protocol MIB Version 8 Upgrade
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gsldp8.htm
MPLS VPN Half-Duplex VRF
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ghdpvrf.htm
MPLS VPN Support for EIGRP Between Provider Edge and Customer Edge
The MPLS VPN Support for EIGRP Between Provider Edge and Customer Edge feature was integrated into Cisco IOS Release 12.3(6) and implemented on the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
NAT Integration with MPLS VPNs (VRF-NAT)
The NAT Integration with MPLS VPNs (VRF-NAT) feature was integrated into Cisco IOS Release 12.3(6) and implemented on the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
Per-VRF AAA
The Per-VRF AAA feature was integrated into Cisco IOS Release 12.3(6) and implemented on the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
QA Error Recovery for the Cisco 7500 Series
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/g_hwqaer.htm
VRF-aware IPSec
The VRF-aware IPSec feature was integrated into Cisco IOS Release 12.3(6) and implemented on the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
New Hardware Features Supported in Cisco IOS Release 12.3(5)
This section describes new and changed features in Cisco IOS Release 12.3(5). Some features may be new to Cisco IOS Release 12.3(5) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(5). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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DES/3DES/AES VPN Encryption Module (AIM-VPN/BPII)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gtaimvpn.htm
VIC2-2FXS, VIC2-2E/M, VIC2-2FXO, VIC2-4FXO, VIC2-2BRI-NT/TE
VIC-2FXS
This two-port Foreign Exchange Station (FXS) voice interface card is a new version of the existing card that can be used for connecting directly to a standard telephone, fax machine, or similar device and supplies ring, voltage, and dial tone. The FXS interface is an RJ-11 connector that allows connections to basic telephone service equipment, keysets, and PBXs. Ports on this voice interface card (VIC) are color-coded gray.
VIC2-2E/M
This two-port "ear & mouth" or "recEive and transMit" voice interface card (VIC) is a newer version of the existing card that supports the most common form of analog trunking, the E/M interface. E/M signaling is commonly referred to as "ear & mouth" or "recEive and transMit." E/M signaling defines a trunk circuit side and a signaling unit side for each connection and is similar to the DCE and DTE reference type. Usually the PBX is the trunk circuit side and the telco, CO, channel bank, or Cisco voice-enabled platform is the signaling unit side. The two-port E/M voice/fax interface card supports 2- and 4-wire interfaces and is used for connecting to the trunk side of the PBX for PBX-to-PBX connections. This card supports 2- and 4-wire E/M signaling types I, II, III, V via RJ-45 connectors.
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VIC2-2FXO
Cisco 1751 and Cisco 1760 series routers now support a two-port Foreign Exchange Office (FXO) voice interface card (VIC) that is user configurable with battery reversal for North America, Europe, or Australia. An FXO interface connects local calls to a public switched telephone network (PSTN) central office or to a PBX that does not support E/M signaling. This is the interface that a standard telephone provides. The Cisco FXO interface is an RJ-11 connector that allows an analog connection to be directed at the PSTN central office or to a station interface on a PBX. The FXO sits on the switch end of the connection. It plugs directly into the line side of the switch, so the switch thinks the FXO interface is a telephone. This FXO card can also be configured for TBR 21 support. Ports on this VIC are color-coded pink. This card also has caller ID support for the M3 (Australia) mode of operation.
VIC2-4FXO
Cisco 1751 and Cisco 1760 series routers now support a four-port Foreign Exchange Office (FXO) voice interface card (VIC) that is user configurable with battery reversal for North America, Europe or Australia. An FXO interface connects local calls to a public switched telephone network (PSTN) central office or to a PBX that does not support E/M signaling. This is the interface that a standard telephone provides. The Cisco FXO interface is an RJ-11 connector that allows an analog connection to be directed at the PSTN central office or to a station interface on a PBX. The FXO sits on the switch end of the connection. It plugs directly into the line side of the switch, so the switch thinks the FXO interface is a telephone. This FXO card can also be configured for TBR 21 support. Ports on this VIC are color-coded pink. This card also has caller ID support for the M3 (Australia) mode of operation.
Restrictions for VIC2-4FXO TBR21 Current Limiting Mode
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VIC2-2BRI-NT/TE
This voice interface card (VIC) is a newer version of the existing card that brings the BRI network side feature to the Cisco 1751 and Cisco 1760 series platforms. This feature allows BRI ports on the routers to act as ISDN network side. The NT interface on the router allows the customer to connect ISDN PBX and key systems to a multi-service network with a minimum of configuration changes on the PBX. This module provides -48V phantom power to PBX and key switches that require it. The Cisco IOS software replicates the public switched network interface on a PBX that is compatible with European Telecommunications Standards Institute (ETSI) Net3 and QSIG switch types.
New Software Features Supported in Cisco IOS Release 12.3(5)
This section describes new and changed features in Cisco IOS Release 12.3(5). Some features may be new to Cisco IOS Release 12.3(5) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(5). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
Multi-cast VPN
The Multi-cast VPN feature was integrated into Cisco IOS Release 12.3(5) and implemented on the Cisco 2600XM series Multiservice platforms, the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
New Hardware and Software Features Supported in Cisco IOS Release 12.3(3)
There are no new hardware or software features supported in Cisco IOS Release 12.3(3).
New Hardware Features Supported in Cisco IOS Release 12.3(1)
This section describes new and changed features in Cisco IOS Release 12.3(1). Some features may be new to Cisco IOS Release 12.3(1) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(1). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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1 and 2 Port Channelized T1/E1/PRI Network Module (NM-1CE1T1-PRI and NM-2CE1T1-PRI)
The NM-1CE1T1-PRI (1-port) and NM-2CE1T1-PRI (2-port) network modules provide support for T1, E1, and ISDN primary rate interface (PRI) network connections in a network module form factor. This feature (referred to in this document as NM-xCE1T1-PRI) offers attachment of one T1, E1, or ISDN PRI line on the 1-port module and two T1, E1, or ISDN PRI lines on the 2-port version.
This new feature (NM-xCE1T1-PRI) enables you to configure a single network module as either a T1 interface or an E1 interface on the same card. The configuration of a T1 or E1 interface and the change from one to the other is controlled by the card type command. Additionally, when in E1 mode, the module can be configured between channelized E1, ISDN PRI, E1-CAS-R2, balanced and unbalanced, and structured (G.704) versus unstructured (G.703) modes. In T1 mode, the module can be configured for channelized T1, T1-CAS, and as a CSU/DSU.
Note
The configuration of the T1 or E1 interface can be customized using command-line interface (CLI) commands. In E1 mode, each port can be individually set to 120-ohm or 75-ohm termination. Each port has RJ-48C connectors, and there is one bantam jack that is shared by each port (for 2-port cards) for monitoring.
1 port BRI S/T WAN Interface Card (WIC-1B-S/T-V2)
The new 1 port BRI S/T WAN Interface Card (WIC-1B-S/T-V2) provides one ISDN BRI port with an S/T interface. WIC-1B-S/T-V2 is a replacement for Cisco WIC-1B-S/T and provides all the functionality of the existing card.
1-Port DSU/CSU T1 WIC for the Cisco 1700, Cisco 2600, Cisco 3600, and Cisco 3700 Series Routers
For detailed information about this feature, see the following document:
PA-POS-2OC3: 2-port Packet over SONET OC3c/STM1 Port Adapter
The PA-POS-2OC3 provides two Packet-over-SONET (POS) ports in a single port adapter slot. The two ports function as either dual independent OC-3c/STM1 ports or a single port with automatic switchover. The PA-POS-2OC3 is used as a direct connection between the supported router or switch platform and external networks. The PA-POS-2OC3 fits into a single port slot on the Cisco 7204VXR, Cisco 7206VXR, Cisco 7401ASR router, and the Cisco 7500 series routers.
VPN Acceleration Module 2 (VAM2)
The Service Adapter VPN Acceleration Module 2 (SA-VAM2) is a single-width port adapter supported on Cisco 7200 series routers with the Network Processing Engine 225, 400, G1 (NPE-225, NPE-400, NPE-G1), and the Network Services Engine (NSE-1) services accelerator.
An SA-VAM2 provides hardware-assisted tunneling and encryption services for Virtual Private Network (VPN) remote access, site-to-site intranets, and extranet applications, including security, quality of service (QoS), firewall and intrusion detection, and service-level validation and management. The SA-VAM2 off-loads IPSec processing from the main processor to permit resources on the processor engines for other tasks.
New Software Features Supported in Cisco IOS Release 12.3(1)
This section describes new and changed features in Cisco IOS Release 12.3(1). Some features may be new to Cisco IOS Release 12.3(1) but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3(1). To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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AutoSecure
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ftatosec.htm
Cisco Fax Services over IP Application Guide
For detailed information about this feature, see the following document:
Cisco IOS TCL IVR and VoiceXML Application Guide
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/tcl_leg/index.htm
CNS Image Agent
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gcns_ia.htm
Command Scheduler
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/g_kron.htm
DSP Voice-Quality Statistics in DLCX Messages
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gtdspsts.htm
Enhanced ITU-T G.168 Echo Cancellation for the Cisco AS5300
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ftech53.htm
Firewall Authentication Proxy for FTP and Telnet Sessions
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ftp_tel.htm
Firewall Support of Skinny Client Control Protocol (SCCP)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ftskinny.htm
Gatekeeper Enhancements for Managed Voice Services
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/ft_gemvs.htm
Gateway Codec Order Preservation and Shutdown Control
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gt_copsc.htm
ISDN BCAC and Round-Robin Channel Selection Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gt_ibcac.htm
Multi-VRF CE (VRF-lite)
The Multi-VRF CE (VRF-lite) feature was integrated into Cisco IOS Release 12.3(1) and implemented on the Cisco 2600XM series Multiservice platforms, the Cisco 2691 Multiservice routers, the Cisco 3662 Multiservice Access platforms, the Cisco 3725 Modular Access routers, and the Cisco 3745 Modular Access routers.
NetFlow BGP Next Hop Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/nfbgpnxt.htm
NetFlow Multicast Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/nfmultic.htm
NetFlow v9 Export Format
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/nfv9expf.htm
PKI Integration with AAA Server
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/g_pkii.htm
RADIUS Server Reorder on Failure
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gt_rsrof.htm
SAA for Frame Relay Interfaces
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/g0saafr.htm
Serial Link Parameter Monitoring and Control
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/srllnkmo.htm
Service Independent Intercept
Service providers worldwide are legally required to allow government agencies to conduct surveillance on the service provider's traditional telephony equipment. The objective of the Service Independent Intercept feature is to enable service providers with New World networks to legally allow government agencies to conduct electronic surveillance on these New World networks (that is, conventional "wire tapping"). From a government agency perspective, you can see how this is important. Legislation and Regulation has been passed, or is being passed, in most countries worldwide to require service providers to support Lawful Intercept (LI).
LI is the term used to describe the process (not a specific regulatory requirement) by which law enforcement agencies conduct electronic surveillance of circuit and packet-mode communications as authorized by judicial or administrative order. Means and authority of conducting LI is often recorded in government legislation or regulatory mandates.
T.38 Call Agent Driven Fax for Cisco IOS Voice Gateways
The T.38 Call Agent Driven Fax for Cisco IOS Voice Gateways feature enables T.38 fax relay interworking between H.323 gateways and MGCP gateways and between two MGCP gateways, under the control of a call agent. This feature introduces the ability for the gateway to accept the MGCP FXR package and to use the fxr prefix when communicating with the call agent. In addition, this feature introduces the ability for the gateway to accept a new port when switching from voice to fax transmission during a call.
This feature makes obsolete the CA-controlled mode as described in Media Gateway Control Protocol-Based Fax (T.38) and Dual Tone Multifrequency (IETF RFC 2833) Relay. The CA-controlled mode described in that document used the ca parameter to communicate with the call agent, and the ca parameter is no longer supported as of Cisco IOS Release 12.3(1). That method for CA-controlled mode has been superseded by the method described in the current document. Note that the gateway (GW)-controlled mode described in the previous document remains supported and is the same as described in the Cisco Fax Services over IP Application Guide.
The T.38 Call Agent Driven Fax for Cisco IOS Voice Gateways feature is described in Chapter 4, "Configuring T.38 Fax Relay," in the Cisco Fax Services over IP Application Guide.
Telephony Gateway Registration Protocol on Cisco IOS Gateways
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/callc_c/triplite.htm
V.92 Reporting Using RADIUS Attribute v.92-info
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gt_v92.htm
VPN Acceleration Module (VAM)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122y/122ye/1229ye/12ye_vam.htm
New Hardware Features Supported in Cisco IOS Release 12.3
This section describes new and changed features in Cisco IOS Release 12.3. Some features may be new to Cisco IOS Release 12.3 but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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1 and 2-port T1/E1 Multiflex Voice/WAN Interface Card
1- and 2-port T1/E1 Muliflex Voice/WAN interface cards provide basic structured and unstructured service for T1 or E1 networks. The card provides fractional data service and channelized voice services and TDM drop and insert (voice/data integration) services.
1- and 2-Port V.90 Modem WICs for Cisco 1720, 1751, and 1760 Routers
The one- and two-port V.90 Modem WICs expand the extensive range of WICs currently available on these routers. The modem WIC cards provide cost-effective basic telephone service connectivity to allow remote router management, asynchronous Dial-on-Demand routing (DDR) and dial back-up, and low-density remote access server (RAS) services.
1- and 2-Port V.90 Modem WICs for Cisco 2600 and Cisco 3600 Series Multiservice Platforms
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft12pwi8.htm
1-Port ADSL WAN Interface Card
For detailed information about this feature, see the following document:
1-Port ADSL WAN Interface Card for Cisco 2600 Series and Cisco 3600 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_adsl4.htm
1-Port ADSL WAN Interface for the Cisco IAD2420 Series
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121x/121xr/121xr_5/ftiaddsl.htm
1 Port Enhanced ATM Port Adapter with Support for 8K VCs
The PA-A6 is a series of single-width, single-port, ATM port adapters for Cisco 7200 series and Cisco 7401ASR routers. With advanced ATM features, the PA-A6 supports broadband aggregation, WAN aggregation, and campus/MAN aggregation.
1-Port G.SHDSL WAN Interface Card for Cisco 2600 Series and Cisco 3600 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_gdsl8.htm
16-Port Ethernet Switch Module for Cisco 2600 Series and Cisco 3600 Series
The16-Port Ethernet switch network module is a modular, high-density voice network module that provides Layer 2 switching across Ethernet ports. The 16-port Ethernet switch network module has sixteen 10/100BASE-TX ports, and an optional power module can also be added to provide inline power for Cisco IP telephones.
Features included on this network module include the following:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xt/122xt_2/ft1636nm.htm
1-Port T1/E1 Digital Voice Port Adapters for Cisco 7200 and Cisco 7500
The PA-VXB and the PA-VXC are multichannel packet voice port adapters that allow Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco 7401ASR routers, and Cisco 7500 series routers to become dedicated packet voice hubs or packet voice gateways that connect to both private branch exchanges (PBXs) and the Public Switched Telephone Network (PSTN). With this technology, packet voice and packet fax calls can be placed over the WAN and sent through the gateway into the traditional circuit-switched voice infrastructure. The PA-VXB and PA-VXC are single-width port adapters with two universal ports that are configurable for either T1 or E1 connections. The PA-VXB contains 12 high-performance digital signal processors (DSPs) that support up to 48 medium-complexity or 24 high-complexity channels of compressed voice. The PA-VXC contains 30 high-performance DSPs that support up to 120 medium-complexity or 60 high-complexity channels of compressed voice.
In Voice over IP (VoIP), the DSP segments the voice signal into frames, which are then coupled in groups of two and stored in voice packets. These voice packets are transported using IP in compliance with ITU-T specification H.323. Because VoIP is a delay-sensitive application, you must have a well-engineered end-to-end network to use it successfully. Fine-tuning your network to adequately support VoIP involves a series of protocols and features geared toward quality of service (QoS). Traffic shaping considerations must be taken into account to ensure the reliability of the voice connection.
36-Port Ethernet Switch Module for Cisco 2600 Series and Cisco 3600 Series
The 36-Port Ethernet switch network module is a modular, high-density voice network module that provides Layer 2 switching across Ethernet ports. The 36-port Ethernet switch network module has thirty-six 10/100BASE-TX ports, and an optional power module can also be added to provide inline power for Cisco IP telephones.
The 36-port Ethernet switch network module supports the same features as the 16-port Ethernet switch network module introduced in Cisco IOS Release 12.2(8)T.
56K CSU Support for the Cisco Signaling Link Terminal
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftsltwic.htm
7100 PA Support
The 7100 PA is a port of support for the following features and port adapters on the Cisco 7100: Turbo ACLs, cRTP Acceleration, PA-GE, PA-MC-2T1, PA-MC-2E1/120, PA-POS, PA-MC-4T1, PA-MC-8T1, PA-MC-8E1, PA 2FE, PA-T3+, and PA-2T3+.
8-Port Mix-Enabled T1/E1/PRI PA
The PA-MC-8TE1+ port adapter is a single-wide port adapter that provides eight T1 or E1 interfaces for Cisco 7200 series routers. The PA-MC-8TE1+ interfaces can be channelized, fractional, or unframed (E1 only).
The PA-MC-8TE1+ provides the following features:
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See the PA-MC-8TE1+ Port Adapter Installation and Configuration Note for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/core/7200vx/portadpt/multicha/8port_t1/index.htm
ADSL over ISDN
Cisco 826 routers connect corporate telecommuters and small offices via Internet Service Providers (ISPs) over asymmetric digital subscriber lines (ADSLs) to corporate LANs and the Internet. The router can provide bridging and multiprotocol routing between LAN and WAN ports. Cisco 826 routers provide connectivity to an ISDN network through an ADSL port.
AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 Series, Cisco 3660, and Cisco 3700 Series
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_04gin.htm
Analog Station Interface (ASI) Cards
Analog station interface (ASI) cards enable you to connect to analog telephones, fax machines, and teleconferencing stations. The following two ASI cards are available:
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ATM OC-12 Port Adapter
Platforms: Cisco 7500/RSP series with Versatile Interface Processor (VIP)
The ATM OC-12 Port Adapter is a dual-width ATM port adapter that provides a single-port, 622.08 Mbps connection from Cisco 7500 series routers to any ATM switch. The PA-A3 OC-12 includes two hardware versions (PA-A3-OC12MM and PA-A3-OC12SMI) that support the following standards-based physical interfaces:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/6228oc12/6228ovrn.htm
Catalyst 4224 Access Gateway Switch
The Cisco Catalyst 4224 Access Gateway Switch (Catalyst 4224) is an integrated switch/router that provides Voice over IP (VoIP) gateway and IP telephony services to a small branch office. The Cisco Catalyst 4224 provides an integrated switch and WAN/voice gateway for enterprise satellite offices with up to 24 users. It is intended to work in conjunction with a Cisco Call Manager cluster from the central site with fail over capabilities to allow local calls and basic PBX features.
For information about Cisco Catalyst 4224 configuration, see the following:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4224/index.htm
Catalyst 4500 Access Gateway Module 16-port RJ21 FXS Module (WS-U4604-16FXS)
The 16-Port RJ21 FXS module for the Catalyst 4500 Access Gateway Module is a high density analog phone and fax interface. By providing service to analog phones and fax machines, the sixteen Foreign Exchange Station (FXS) ports emulate a PSTN central office (CO) or PBX.
Catalyst 4500 AGM Voice/WAN Bundle (WS-X4604-VOICE)
The Cisco Catalyst 4500 AGM Voice/WAN bundle provides integrated telephony and routing services to the Cisco Catalyst 4000 series and Cisco Catalyst 4500 series switches. The Cisco Catalyst 4500 AGM Voice/WAN bundle consists of the following products:
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Cisco 1721 Router
The Cisco 1721 data-only modular access router is an enhanced Cisco 1720 router that provides higher performance, additional functionality, and increased memory capacity. The router supports WAN access, Virtual Private Network (VPN), and firewall technology for secure Internet, intranet, and extranet access. Cisco 1721 routers also support standards-based Institute of IEEE 802.1Q VLAN routing, which enables enterprises to set up and route between multiple VLANs for additional security in an internal corporate network.
Cisco 1751 Router
The voice-and-data capable Cisco 1751 router provides global Internet and company intranet access and includes the following:
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Cisco 1760 Router
The Cisco 1760 router is a voice-and-data-capable router that provides Voice-over-IP (VoIP) functionality and can carry voice traffic (for example, telephone calls and faxes) over an IP network. Using one or two WAN connections, the router links small-to-medium-size remote Ethernet and Fast Ethernet LANs to central offices.
The Cisco 1760 router is available in two models. The Cisco 1760 runs data and data-plus-voice images, providing digital and analog voice support. The Cisco 1760-V includes all the features needed for immediate integration of data and voice services with support for multiple voice channels.
See the documents at the following location for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/5300/index.htm
Cisco 2600XM Series Routers
The Cisco 2600XM series provides new product enhancements to the current Cisco 2600 series. The Cisco 2600XM series is available in three performance levels and six base configurations:
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Each model also has two WAN interface card (WIC) slots, one Network Module slot, and an Advanced Integration Module.
Cisco 2691 Series Router
The Cisco 2691 router is part of the next generation Modular Multiservice platform for deployment of advanced IP Telephony Solutions and Integrated Services. This platform is the fourth in a series of Cisco 2600 products that offer additional performance levels.
The Cisco 2691 provides two 10/100BASE-T Fast Ethernet (FE) ports with one Network Module (NM) slot, three WAN Interface Cards (WICs) slots, and two Advanced Interface Module (AIM) slots. Many of the current NMs, WICs and AIMs used today on the Cisco 2600 and Cisco 3600 series routers are supported on the Cisco 2691 series router.
Cisco 3631 Router Enhanced Functionality
The Cisco 3631 supports the following interfaces:
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For more information about network module configuration, see the following:
For more information about WAN interface card (WIC) configuration, see the following:
Cisco 3631 Series Router
The Cisco 3631 is a new midrange router for Data Communication Network (DCN) applications that provides two network modules and two WICs, one Fast Ethernet port, one console port, and an auxiliary port. The Cisco 3631 is two rack units high in an 11-inch NEBS/ETSI-compliant chassis that functions at 70,000 pps.
Cisco 3640A Router
The Cisco 3640A is identical to the Cisco 3640 router in terms of physical characteristics, interface support, performance and memory. The Cisco 3640A router will support the same Cisco IOS feature sets as the Cisco 3640 router, but requires a different minimum version of Cisco IOS software.
Cisco 3725 Application Service Router
The Cisco 3725 Series Application Service Router is part of a new family of modular routers that enable flexible and scalable deployment of new e-business applications in an integrated branch office access platform.
The Cisco 3700 series are new access platforms optimized for the modular integration and consolidation of branch applications and services. The Cisco 3725 is a two-rack unit (RU) router equipped with two on-board Fast Ethernet (FE) interfaces, three WAN Interface Card (WIC) slots and two Advanced Integration Module (AIM) slots, and two network module (NM) slots. The Cisco 3725 also includes optional -48VDC integrated inline power to support IP Telephony when used with an EtherSwitch network module.
Cisco 3725 Router, Cisco 3745 Router, Cisco 2691 Router Enhanced Functionality
The Cisco 3725, Cisco 3745, and Cisco 2691 routers will support the following interfaces:
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For more information about network module configuration, see the following:
For more information about WAN interface card (WIC) configuration, see the following:
Cisco 3745 Application Service Router
The Cisco 3745 Series Application Service Router is part of a new family of modular routers that enable flexible and scalable deployment of new e-business applications in an integrated branch office access platform.
The Cisco 3745 is a three-rack unit (RU) router equipped with two on-board Fast Ethernet (FE) interfaces, three WAN Interface Card (WIC) slots and two Advanced Integration Module (AIM) slots, and two network module (NM) slots. The Cisco 3745 also includes optional 48vDC integrated inline power, internal redundant AC or DC Power options, and Online Insertion and Removal (OIR) capabilities for like network modules.
The Cisco 3700 series is ideal for sites and solutions requiring the highest levels of integration at the edge, such as:
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Cisco 7401 ASR-BB and Cisco 7401 ASR-CP
The Cisco 7401 ASR-BB and Cisco 7401 ASR-CP are supported in Cisco IOS Release 12.3.
Cisco 806 Broadband Gateway Router
The Cisco 806 Broadband Gateway Router adds business-class functionality to affordable broadband access for small offices and corporate telecommuters. Through the power of Cisco IOS technology, the Cisco 806 provides business-class security, remote management, and quality of service capabilities. These value-added features, with the proven reliability of Cisco IOS technology, provide the mission-critical networking required by today's agile businesses.
Cisco AS5350 Universal Gateway
The Cisco AS5350 Universal Gateway is the only one-rack-unit, two, four, or eight PRI gateway that provides universal services—data, voice, and fax services on any service, any port. The Cisco AS5350 offers high performance and high reliability in a compact, modular design. This cost-effective platform is ideally suited for Internet service providers (ISPs) and enterprises that require innovative universal services.
See the documents at the following location for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5350/index.htm
Cisco AS5850 Universal Gateway
The Cisco AS5850 Universal Gateway provides the highest concentration of port and Integrated Services Digital Network (ISDN) terminations available in a single remote access server product. The Cisco AS5850 is specifically designed to meet the demands of large service providers such as Post, Telephone, and Telegraphs (PTTs), regional bell operating companies (RBOCs), inter-exchange carriers (IXCs), and large Internet service providers (ISPs).
See the documents at the following location for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5850/index.htm
Cisco CVA122 Cable Voice Adapter
The Cisco CVA122 Cable Voice Adapter acts as a cable modem to connect computers and other customer premises equipment (CPE) devices at a subscriber site to the service provider cable, hybrid fiber-coaxial (HFC), and IP backbone network. The Cisco CVA122 Cable Voice Adapter is based on the Data-over-Cable Service Interface Specifications (DOCSIS) and interoperates with any bidirectional, DOCSIS-qualified cable modem termination system (CMTS).
The Cisco CVA122 Cable Voice Adapter supports both data and Voice over IP (VoIP) traffic via a shared two-way cable system and IP backbone network. PCs and other CPE devices can connect to the cable voice adapter either through an Ethernet port or through a Universal Serial Bus (USB) port. Single-line telephones, fax, or modems can be connected to two RJ-11 analog voice ports of the cable voice adapter. The cable voice adapter supports DOCSIS-compliant bridging data operations, and it can also function as an advanced router, providing WAN data and VoIP connectivity in a variety of configurations.
Cisco CVA122E Cable Voice Adapter
The Cisco CVA122E Cable Voice Adapter acts as a cable modem to connect computers and other customer premises equipment (CPE) devices at a subscriber site to the service provider cable, hybrid fiber-coaxial (HFC), and IP backbone network. The Cisco CVA122E Cable Voice Adapter is based on the European Data-over-Cable Service Interface Specifications (EuroDOCSIS) and interoperates with any bidirectional, EuroDOCSIS-qualified cable modem termination system (CMTS).
The Cisco CVA122 Cable Voice Adapter supports both data and Voice over IP (VoIP) traffic via a shared two-way cable system and IP backbone network. PCs and other CPE devices can connect to the cable voice adapter either through an Ethernet port or through a Universal Serial Bus (USB) port. Single-line telephones, fax, or modems can be connected t o two RJ-11 analog voice ports of the cable voice adapter. The cable voice adapter supports EuroDOCSIS-compliant bridging data operations, and it can also function as an advanced router, providing WAN data and VoIP connectivity in a variety of configurations.
Cisco High-Density Analog Voice and Fax Network Module
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xt/122xt_2/ft_hdanm.htm
Cisco uBR905 Cable Access Router
The Cisco uBR905 Cable Access Router features a single F-connector interface to the cable system, four RJ-45 (10BASE-T Ethernet) hub ports, and one RJ-45 console port to connect to a laptop computer/console terminal for local Cisco IOS configuration. The Cisco uBR905 Cable Access Router also provides an onboard IPSec hardware accelerator, which provides high-performance encryption that is substantially faster than software-based encryption.
Cisco uBR925 Cable Access Router
The Cisco uBR925 cable access router acts as a cable modem to connect computers and other customer premises equipment (CPE) devices at a subscriber site to the service provider cable, hybrid fiber-coaxial (HFC), and IP backbone network. The Cisco uBR925 router is based on the Data-over-Cable Service Interface Specifications (DOCSIS) and interoperates with any bidirectional, DOCSIS-qualified cable modem termination system (CMTS).
The Cisco uBR925 cable access router supports both data and Voice over IP (VoIP) traffic via a shared two-way cable system and IP backbone network. PCs and other CPE devices can connect to the Cisco uBR925 router either through a four-port Ethernet hub or through the Universal Serial Bus (USB) port of the router. Single-line telephones, fax, or modems can be connected to two RJ-11 analog voice ports of the router. The Cisco uBR925 router supports DOCSIS-compliant bridging data operations, and it can also function as an advanced router, providing WAN data and VoIP connectivity in a variety of configurations.
Digital J1 Voice Interface Card
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftj1voip.htm
Gigabit Ethernet Network Module
The Gigabit Ethernet (GE) network module provides gigabit connectivity. The throughput of the interface depends on the platform. The network module has one GBIC slot to carry any standard copper or optical Cisco GBIC, including CWDM. The GE network module optimizes the performance for branch office customers by offering a high-speed uplink to both existing and new LAN or WAN environments. The extended reach of the provided fiber connectivity allows customers the option of interconnecting branch offices with Gigabit Ethernet and avoids expensive leased serial lines. Metro area service providers now have additional options when connecting their customers in branch offices to MANs.
The Gigabit Ethernet network module is supported on the following platforms: Cisco 2691, Cisco 3660, Cisco 3725, and Cisco 3745.
MRP300
The Multiservice Route Processor 300 (MRP300) is a voice-and-data-capable router that can carry voice traffic over an IP network and that can link small-to-medium-size remote Ethernet LANs to central offices over WAN links. The MRP300 has a slot for expanding flash memory; two slots that support WICs, VWICs, and VICs; two PVDM slots for adding DSPs; and a DIMM slot for upgrading DRAM.
MRP3-16FXS
The MRP3-16FXS contains a 16-port Foreign Exchange Station (FXS) module. The MRP3-16FXS is similar to the analog station interface 161 card (ASI160), except that the ASI160 does not have onboard Flash memory.
MRP3-8FXS
The MRP3-8FXS contains an 8-port Foreign Exchange Station (FXS) module and a slot for any VIC, WIC, or VWIC module that supports digital and analog voice trunks and WAN routing interfaces. The MRP3-8FXS is similar to the analog station interface 81 card (ASI81), with the exception that the ASI81 does not have onboard Flash memory.
Multichannel STM-1 Port Adapter
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_stm5.htm
NM-AIC-64, Contact Closure Network Module
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_aicnm.htm
NPE-G1
The NPE-G1 is the first network processing engine for the Cisco 7200 VXR routers to provide the functionality of both a network processing engine and an I/O controller. If used without an I/O controller, an I/O blank panel must be in place.
Although its design provides I/O controller functionality, it can also work with any I/O controller supported in the Cisco 7200 VXR routers. The NPE-G1, when installed with an I/O controller, provides the primary input/out functionality; that is, the NPE-G1 input/out functionality enhances that of the existing I/O controller. However, when both the I/O controller and NPE-G1 are present, the functionality of the auxiliary port and console port are on the I/O controller.
The NPE-G1 maintains and executes the system management functions for the Cisco 7200 VXR routers and also holds the system memory and environmental monitoring functions.
The NPE-G1 consists of one board with multiple interfaces. It is keyed so that it can be used only in the Cisco 7200 VXR routers.
PA-MC-8TE1+
The Cisco PA-MC-8TE1+ is a single-wide port adapter designed to provide a full eight-port PRI multichannel solution for the Cisco 7200 and Cisco 7400. The interfaces can be channelized, fractional or ISDN-PRI, or unframed (E1) with up to 256 independent HDLC channels definable for T1 and E1 applications.
RPM-XF Card for the MGX 8850
The RPM-XF card is a next-generation, high-performance model of the RPM for the MGX 8850 platform, using PXM45 processor modules. It is a router module based on an RM7000A MIPS processing engine.
The RPM-XF hardware provides forwarding technology for packet switching capabilities in excess of 2-million pps. The forwarding engine is packet based and is interfaced to the midplane of the system through a combination of switch interface technologies.
SDH/STM-1 Trunk Card for Cisco AS5850 Universal Gateway
Channelized STM-1 provides a high speed remote access aggregation solution with 63 E1s and 1890 DSO channels. The SDH/STM-1 trunk card is a high density mux/demux card that takes in an STM-1 (SDH) pipe, used to transport up to 1890 DS0 channels. The SDH/STM-1 trunk card provides an ingress connection between the Cisco AS5850 universal gateway and external networks. The SDH/STM-1 trunk card has a 155-Mbps channelized SDH physical interface in a standard dial feature card (DFC) format. The SDH interface supports channelization to 64 kbps and connects to single mode fiber optic supporting intermediate reach PPP applications.
Small Office, Home Office ADSL Router
Cisco IOS Release 12.3 supports the following Cisco SOHO series routers:
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The SOHO 76 and SOHO 77 are small office, home office (SOHO) asymmetric digital subscriber line (ADSL) routers, each with one Ethernet interface for connection to service provider networks.
The SOHO routers also provide the following key hardware features:
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SRP MIB for DPT-OC12 WAN Card
This feature provides the SRP MIB for PA-SRP-OC12xx and SRPIP-OC12xx cards for the Cisco 7200 and Cisco 7500 series routers.
Update to the Enhancements for the Cisco Voice Gateway 200
The Enhancements for the Cisco Voice Gateway 200 (Cisco VG200) feature provides the Cisco VG200 platform (also called CAG-VG200) with increased voice gateway feature parity to the Cisco 2600, Cisco 3600, and Cisco 3700 platforms. This update provides additional feature functionality on the Cisco VG200 platform.
The Cisco VG200 platforms provide the following default memory options: 16 MB of Flash, 64 MB of DRAM.
URM LAN
On the Cisco IGX 8400 series, the Universal Router Module (URM) has been enhanced by new LAN features such as Security and VPN. Installed URMs can be enabled with the new features by upgrading to IGX switch software 9.3.30 and Cisco IOS Release 12.2(2)XX as well as by adding an AIM-VPN daughter module to the URM. Also, a new, price-reduced back card for the URM with 2 FE ports (BC-URI-2FE) for LAN services will be supported. URM together with the voice-enabled back cards (BC-URI-2FE2V-E1/T1) will support the new LAN.
VPN Encryption and Compression Module (AIM-VPN/EPII & AIM-VPN/HPII)
The VPN Encryption AIM provides hardware-based DES/3DES/AES and Compression services for Cisco 2691, Cisco 3660, Cisco 3725, and Cisco 3745 routers. The Data Compression supports IPSec IPPCP and supports the industry standard LZS. For more information about configuring the virtual private network (VPN) encryption hardware advanced integration modules (AIM-VPN/EPII & AIM-VPN/HPII) and network modules, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gtaimvpn.htm
WIC-1-B-U-V2
Beginning in this release, the model number for the existing WIC-1-B-U interface card for the Cisco 1700 series, Cisco 2600 series, and Cisco 3600 series is changing to WIC-1-B-U-V2.
In addition, this interface card will now be supported on the Cisco 1760, Cisco 2691, Cisco 3725, and Cisco 3745 beginning with this release.
WT-2750 Multipoint Broadband Wireless System
The Cisco broadband fixed wireless point-to-multipoint system is an integrated solution consisting of one headend (WT-2751 Multipoint Headend Line Card) and multiple subscriber units (WT-2755 Multipoint Subscriber Network Module). The fixed wireless point-to-multipoint subscriber unit is designed to receive radio frequency (RF) signals from the headend. It also transmits a return signal to the headend. This return signal is a point-to-point signal, so a properly installed subscriber antenna must be correctly oriented with the headend antenna to which it is transmitting.
For more information about the fixed wireless point-to-multipoint headend feature, see Point-to-Multipoint Support for the Cisco uBR7200 Series Universal Broadband Router at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/wireless/bbfw/p2mp/index.htm
The fixed wireless multipoint system incorporates Vector Orthogonal Frequency Division Multiplexing (VOFDM), so it does not always depend on line-of-sight (LOS) deployment. With VOFDM, the system allows wireless operation in obstructed, non-line-of-sight (non-LOS) environments by taking advantage of multipath signals. This can be particularly useful in urban and suburban environments.
Wireless Network Module
The NM-WMDA wireless network module installs in the network module slot of a Cisco 2600 series router. Installing a wireless network module enables the Cisco 2600 series router to act as a subscriber unit (SU) in a point-to-multipoint wireless network. It is configured through the router's system console or via the CiscoView network management system. The network module provides the control and data interface between the Cisco 2600 series digital motherboard and the radio frequency (RF) subsystem in the wireless transverter. It also provides the up/down conversion from baseband to intermediate frequency (IF). One network module supports one or two wireless transverters (main and diversity).
Microcode software images ship in Flash memory along with the system software image. When the router starts, the system software unpacks the microcode software bundle and loads the proper software on all the interface line cards.
It is possible to use a later version of microcode software than the one shipped with the Cisco IOS software from the factory. The microcode software in Flash memory is mapped to the line cards. Unless you fully understand how Cisco IOS software uses microcode software, it is important to keep the factory configuration.
The multipoint wireless modem card requires external microcode software. Information about this microcode software is available (with a Cisco.com login) at the following location:
http://www.cisco.com/pcgi-bin/tablebuild.pl/rsu
For further information regarding the network module, see the Cisco Network Modules Hardware Installation Guide (for Cisco 2600 series routers) for detailed installation instructions, and the Software Configuration Guide (for Cisco 2600 series routers) for an overview of network module configuration procedures and information on configuring specific network modules.
New Software Features Supported in Cisco IOS Release 12.3
This section describes new and changed features in Cisco IOS Release 12.3. Some features may be new to Cisco IOS Release 12.3 but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.3. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. See the following links to feature modules. If a feature does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed is available in the following feature description.
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AAA-PPP-VPDN Non-Blocking
Previously, Cisco IOS software created a statically configurable number of processes to authenticate calls. Each of these processes would handle a single call, but in some situations the limited number of processes could not keep up with the incoming call rate. This resulted in some calls timing out. The AAA-PPP-VPDN Non-Blocking feature changes the software architecture such that the number of processes will not limit the rate of call handling.
Ability to Disable Extended Authentication for Static IPSec Peers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftnxauth.htm
Accounting of VPDN Disconnect Cause
In the past, whenever a Layer 2 Tunneling Protocol (L2TP) or Layer 2 Forwarding (L2F) session fails or disconnects, the network access server (NAS) and Home GateWay (HGW) report a very generic disconnect-cause code, such as "LOST CARRIER". These generic codes do not provide enough detailed information for accounting and debugging purposes, creating a need for disconnect-cause codes that provide more detailed information. The Accounting of VPDN Disconnect Cause feature adds eight new disconnect-cause codes. These eight disconnect-cause codes describe the status of Virtual Private Dialup Network (VPDN) failures and disconnects more specifically than existing generic disconnect-cause codes. These new disconnect-cause codes can be found in the Cisco IOS Security Configuration Guide, Release 12.2, located at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fsecur_c/fappendx/scgrdat3.htm
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftacldir.htm
ACL Authentication of Incoming rsh and rcp Requests
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftauth.htm
ACL Default Direction
The ACL Default Direction feature allows you to change the filter direction (where filter direction is not specified) to inbound packets only; that is, you can configure your server to filter packets that are coming toward the network.
This feature introduces the radius-server attribute 11 direction default command, which allows you to change the default direction of filters for your access control lists (ACL) via RADIUS. (RADIUS attribute 11 (Filter-Id) indicates the name of the filter list for the user.) Enabling this command allows you to change the filter direction to inbound—which stops traffic from entering a router, thereby reducing resource consumption—rather than the outbound default direction, which waits until the traffic is about to leave the network before filtering. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftacldir.htm
ADSL over ISDN
Cisco 826 routers connect corporate telecommuters and small offices via Internet service providers (ISPs) over asymmetric digital subscriber lines (ADSLs) to corporate LANs and the Internet. The router can provide bridging and multiprotocol routing between LAN and WAN ports. Cisco 826 routers provide connectivity to an ISDN network through an ADSL port.
Adaptive Frame Relay Traffic Shaping for Interface Congestion
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_afrts.htm
Advanced Voice Busyout
The local voice busyout feature provides a way to busy out a voice port or DS-0 group (time slot) if a state change is detected in a monitored network interface (or interfaces). When a monitored interface changes to a specified state—to out-of-service or in-service—the voice port presents a seized/busyout condition to the attached PBX or other customer premises equipment (CPE). The PBX or other CPE can then attempt to select an alternate route.
Advanced Voice Busyout adds the following functionality to the local voice busyout feature:
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Using the Advanced Voice Busyout feature you can perform the following tasks:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xa/122xa_2/ft_cacbo.htm
Analog DID (Direct Inward Dial)
Analog Direct Inward Dial (DID) is now supported on Cisco 1700 series routers.
Analog DID for Cisco 2600 and Cisco 3600 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/dt_did.htm
Asynchronous Line Monitoring
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftasync.htm
Asynchronous Serial Traffic Over User Datagram Protocol (UDP)
The Asynchronous Serial Traffic Over User Datagram Protocol (UDP) feature provides the ability to encapsulate asynchronous data into UDP packets, and then unreliably transmit this data without needing to establish a connection with a receiving device.
You load the data you want to transmit through an asynchronous port, and then transmit it, optionally, as a multicast or a broadcast. The receiving device(s) can then receive the data whenever it wants. If the receiver ends reception, the transmission is unaffected.
This process is referred to as UDP Telnet (UDPTN), although it does not—and cannot—use the Telnet protocol. UDPTN is similar to Telnet in that both are used to transmit data, but UDPTN is unique in that it does not require that a connection be established with a receiving device.
ATM PVC Bundle Enhancement — MPLS EXP-Based PVC Selection
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftmpls.htm
ATM PVC Range and Routed Bridge Encapsulation Subinterface Grouping
In a digital subscriber line (DSL) environment, many applications require the configuration of a large number of ATM permanent virtual circuits (PVCs). The ATM PVC Range and Routed Bridge Encapsulation Subinterface Grouping feature enables you to group a number of PVCs into a PVC range in order to configure them all at once.
For applications that use multipoint subinterfaces, such as PPP over Ethernet and PPP over ATM, the PVC range is on a single multipoint subinterface. For applications that use point-to-point subinterfaces, such as routed bridge encapsulation (RBE), a point-to-point subinterface is created for each PVC in the range.
A PVC range is defined by two VPI-VCI pairs. The two virtual path identifiers (VPIs) define a VPI range, and the two virtual channel identifiers (VCIs) define a VCI range. The number of PVCs in the PVC range equals the number of VPIs in the VPI range multiplied by the number of VCIs in the VCI range.
Once the PVC range is defined, you can configure the range by using the existing interface-ATM-VC configuration commands that are also supported in ATM PVC range configuration mode. The shutdown ATM PVC range configuration mode command can be used to deactivate the range without deleting the configuration.
The ATM PVC Range and Routed Bridge Encapsulation Subinterface Grouping feature also introduces the pvc-in-range command, which allows you to explicitly configure an individual PVC within the defined range of PVCs on a multipoint subinterface. The shutdown ATM PVC-in-range configuration mode command allows you to deactivate an individual PVC within a range.
Note
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/dtatmpvr.htm
ATM Service Level Monitoring (SLM)
The Cisco Service Assurance Agent (SA Agent) is an embedded performance monitoring utility in Cisco IOS software. The ATM Service Level Monitoring (SLM) feature expands the capabilities of the SA Agent to provide detailed monitoring statistics for your ATM network. Monitoring service levels for ATM connections allows service providers to ensure that their networks are meeting or exceeding the performance outlined in service level agreements (SLAs).
The ATM Service Level Monitoring feature can also be used with Cisco Networking Services (CNS). A device running CNS, such as the IE2100, can be used to retrieve the ATM performance statistics generated by the SA Agent. Additionally, these results can be passed to other devices running third-party monitoring software.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftatmslm.htm
ATM SNMP Trap and OAM Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftpvctrp.htm
ATM Software Segmentation and Reassembly (SAR)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ft_t1atm.htm
ATM Subinterface MIB/Traps
This feature adds support for the monitoring of ATM and Frame Relay (FR) subinterface status using SNMP. New CLI commands allow the enabling or disabling of ATM and Frame Relay notifications (traps and informs), and provide an option for limiting the rate of notifications sent ("trap throttling").
ATM SVC Troubleshooting Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftsvctrb.htm
AutoInstall over Frame Relay-ATM Interworking Connections
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftautatm.htm
Automatic Bandwidth Adjustment for MPLS Traffic Engineering Tunnels
Traffic engineering automatic bandwidth adjustment provides the means to automatically adjust the bandwidth allocation for traffic engineering tunnels based on their measured traffic load.
Traffic engineering autobandwidth samples the average output rate for each tunnel marked for automatic bandwidth adjustment. For each marked tunnel, it periodically (for example, once per day) adjusts the tunnel's allocated bandwidth to be the largest sample for the tunnel since the last adjustment.
The frequency with which tunnel bandwidth is adjusted and the allowable range of adjustments is configurable on a per-tunnel basis. In addition, the sampling interval and the interval over which to average tunnel traffic to obtain the average output rate is user-configurable on a per-tunnel basis.
There are three new commands:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftbwadjm.htm
Automatic Protection Switching (APS)
This feature allows switchover of Packet-over-SONET (POS) circuits in the event of circuit failure and is often required when connecting SONET equipment to telco equipment.
Barge-In and Busy Line Verify Operator Services
The Barge-In and Busy Line Verify Operator Services feature enhances Simple Gateway Control Protocol (SGCP)/Media Gateway Control Protocol (MGCP) gateway conferencing capabilities to support the Busy Line Verification/Operator Interrupt (BLV/OI) feature. The Busy Line Verification feature permits an operator to establish a connection to a customer's line to verify a busy condition for a calling party. The Operator Interrupt feature allows the operator to speak to the customer and to connect the calling party and customer, if appropriate. These enhancements support other call flows such as call pickup with barge-in that require the ability to conference a second call into an existing two-party call without intervention by parties in the existing call. No explicit configuration is required to enable this feature.
The MGCP Basic CLASS and Operator Services feature introduced conferencing to support three-way calling on SGCP and MGCP gateways. It is described in MGCP Basic CLASS and Operator Services at
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftmgcpgr.htm
BGP Conditional Route Injection
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftbgpri.htm
BGP Hide Local-Autonomous System
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ft11bhla.htm
BGP Link Bandwidth
The Border Gateway Protocol (BGP) Link Bandwidth feature is used to advertise the bandwidth of an autonomous system exit link as an extended community. The BGP Link Bandwidth feature is supported by the internal BGP (iBGP) and external BGP (eBGP) multipath features. The link bandwidth extended community indicates the preference of an autonomous system exit link in terms of bandwidth. The link bandwidth extended community attribute may be propagated to all iBGP peers and used with the BGP multipath features to configure unequal cost load balancing. When a router receives a route from a directly connected external neighbor and advertises this route to iBGP neighbors, the router may advertise the bandwidth of that link.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftbgplb.htm
BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ft11bmpl.htm
BGP Named Community Lists
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftbgpncl.htm
BGP Prefix-Based Outbound Route Filtering
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ft11borf.htm
Bisync-to-IP Conversion for Automated Teller Machines
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftbipatm.htm
BRI QSIG Protocol
BRI QSIG is the QSIG support over BRI interface. QSIG protocol support allows Cisco voice gateways to connect PBXs, key telephone systems (KTS), and central office switches that communicate by using the QSIG protocol.
Call Admission Control Based on CPU Utilization
The Preauthentication with ISDN PRI feature permits the Cisco AS5300 and AS5800 universal access servers to deny incoming calls exceeding a preconfigured threshold, permitting the selection of a system CPU load level value. This feature helps ensure the quality of service (QoS) of existing calls and reliability of system processes by preventing system overload that is caused by excessive incoming calls. The feature rejects new digital calls (PRI, channel-associated signaling [CAS], and ISDN), with minor disruption to system users.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5800/sw_conf/ios_122/dt61294.htm
Call Admission Control for H.323 VoIP Gateways
Before the call admission control feature, gateways did not have a mechanism to gracefully prevent calls from entering when certain resources were not available to process the call. This causes the new call to fail with unreported behavior, and could potentially cause the calls that are in progress to have quality related problems.
This feature set provides the ability to support resource-based call admission control processes. These resources include system resources such as CPU, memory, and call volume, and interface resources such as call volume.
If system resources are not available to admit the call, two kinds of actions are provided: system denial (which busyouts all of T1 or E1) or per call denial (which disconnects, hairpins, or plays a message or tone). If the interface-based resource is not available to admit the call, the call is dropped from the session protocol (such as H.323).
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftcac58.htm
Call Transfer Capabilities Using the Refer Method
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ftrefer.htm
CDP and ODR Support for ATM PVCs
This feature introduces support for the Cisco Discovery Protocol (CDP) over ATM point-to-point permanent virtual circuits (PVCs). Prior to this release, CDP discovery messages were not supported over ATM interfaces.
CDP is a Cisco proprietary device discovery protocol. Each Cisco device periodically sends messages to a multicast address. These messages advertise information about that device, such as the system ID (name), capabilities, Cisco IOS software version, and the network address of the connected interface. This information will be picked up by any neighboring Cisco devices on the same medium, which are listening for CDP advertisements. The information learned about neighboring devices is available through the Cisco IOS CLI show cdp commands and through SNMP monitoring using the CDP MIB.
This feature also adds support for On-Demand Routing (ODR) over ATM PVCs. ODR uses CDP to propagate IP address information in hub-and-spoke topologies. When ODR is enabled, spoke routers automatically advertise their subnets using CDP.
CDP is disabled by default for ATM PVC interfaces. To enable CDP, use the cdp run global configuration mode command and the cdp enable interface configuration mode command on both ends of the PVC. To enable ODR, use the router odr global configuration mode command on the hub router and turn off any dynamic routing protocols in the spoke routers.
For details on configuring CDP, see the following documentation:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/fcfprt3/fcf015.htm
For details on configuring ODR, see the following documentation:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcprt2/1cfodr.htm
CEF and Distributed CEF Switching for IPv6
Cisco Express Forwarding for IPv6 (CEFv6) is advanced, Layer 3 IP switching technology for the forwarding of IPv6 packets. Distributed CEF for IPv6 (dCEFv6) performs the same functions as CEFv6 but for distributed architecture platforms such as the Cisco 12000 series Internet routers and the Cisco 7500 series routers. dCEFv6 and CEFv6 function the same and offer the same benefits as dCEFv4 and CEFv4—network entries that are added, removed, or modified in the IPv6 Routing Information Base (RIB), as dictated by the routing protocols in use, are reflected in the Forwarding Information Bases (FIBs), and the IPv6 adjacency tables maintain Layer 2 next-hop addresses for all entries in each FIB.
CEFv6 was introduced in Cisco IOS Release 12.2(13)T for nondistributed architecture platforms, such as the Cisco 7200 series routers. dCEFv6 was introduced in Cisco IOS Release 12.0(21)ST for the Cisco 12000 series Internet routers, and was then integrated into Cisco IOS Release 12.2(13)T and later releases for other distributed architecture platforms, such as the Cisco 7500 series routers.
In Cisco IOS Release 12.0(21)ST, dCEFv6 included support for IPv6 addresses and prefixes. In Cisco IOS Release 12.2(13)T or later releases, dCEFv6 and CEFv6 were enhanced to include support for separate FIBs for IPv6 global, site-local, and link-local addresses.
CEF on Multipoint GRE Tunnels
The CEF on Multipoint GRE Tunnels feature enables Cisco Express Forwarding (CEF) switching of IP traffic to and from multipoint generic routing encapsulation (GRE) tunnels. Tunnel traffic can be forwarded to a prefix through a tunnel destination when both the prefix and the tunnel destination are specified by the application.
CEF-Switched Multipoint GRE Tunnels
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_cefgt.htm
Certificate Autoenrollment
The Certificate Autoenrollment feature allows you to configure your router to automatically request a certificate from the certification authority (CA) that is using the parameters in the configuration. Thus, operator convention is no longer required at the time the enrollment request is sent to the CA server.
Automatic enrollment will be performed on startup for any trustpoint CA that is configured and does not have a valid certificate. When the certificate—which is issued by a trustpoint CA that has been configured for autoenrollment—expires, a new certificate is requested. Although this feature does not provide seamless certificate renewal, it does provide unattended recovery from expiration.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftautoen.htm.
Note
Certificate Enrollment Enhancements
The Certificate Enrollment Enhancements feature introduces five new subcommands to the crypto ca trustpoint command—ip-address (ca-trustpoint), password (ca-trustpoint), serial-number, subject-name, and usage. These commands provide new options for certificate requests and allow users to specify fields in the configuration instead of having to go through prompts. (However, the prompting behavior remains the default if this feature is not enabled.) Thus, users can preload all necessary information into the configuration, allowing each router to obtain its certificate automatically when it is booted.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftenrol2.htm.
Note
Circuit Interface Identification Persistence for SNMP
The Circuit Interface MIB (CISCO-CIRCUIT-INTERFACE-MIB) provides a MIB object (cciDescr) which can be used to identify individual circuit-based interfaces for SNMP monitoring. The Circuit Interface Identification Persistence for SNMP feature maintains this user-defined name of the circuit across reboots, allowing the consistent identification of circuit interfaces. Circuit Interface Identification Persistence is enabled using the snmp mib persist circuit global configuration command.
Note
Cisco 2600 and 3600 Routers MGCP Voice Gateway Interoperability with Cisco CallManager
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xa/122xa_2/ft_mgccm.htm
Cisco Discovery Protocol (CDP)—IPv6 Address Family Support for Neighbor Information
The CDP IPv6 Address Family Support for Neighbor Information feature adds the ability to transfer IPv6 addressing information between two Cisco devices using Cisco Discovery Protocol (CDP). CDP in IPv6 functions the same as and offers the same benefits as CDP in IPv4. IPv6 enhancements to CDP allow CDP to exchange IPv6 and neighbor addressing information. IPv6 CDP provides IPv6 information to network management products and provides troubleshooting tools.
Cisco Gateway Management Agent
The Cisco Gateway Management Agent (CGMA) feature provides an eXtensible Markup Language (XML) interface to support real-time management of a Cisco IOS gateway (GW). Currently, GWs provide statistics using Simple Network Management Protocol (SNMP) and do not support real-time polling. The CGMA feature allows GWs to communicate with third-party management applications using XML over TCP/IP.
Cisco H.323 Scalability and Interoperability Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/fth323v3.htm
Cisco High-Performance Gatekeeper
For detailed information about this feature, see the following document:
Cisco Hoot and Holler over IP
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_hhip.htm
Cisco IOS Firewall Performance Improvements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftfirewl.htm
Cisco IOS Firewall Stateful Inspection of ICMP
The Cisco IOS Firewall Stateful Inspection of ICMP feature addresses the limitation of qualifying Internet Control Management Protocol (ICMP) messages into either a malicious or benign category by allowing the Cisco IOS firewall to use stateful inspection to "trust" ICMP messages that are generated within a private network and to permit the associated ICMP replies. Thus, network administrators can debug network issues without needing to block ICMP messages from entering the network because of possible intruders.
Cisco IOS Firewall Support for SIP
The Cisco IOS Firewall Support for SIP feature integrates Cisco IOS firewalls, the Voice over IP (VoIP) protocol, and Session Initiation Protocol (SIP) within a Cisco IOS based platform, enabling better network convergence.
Cisco IOS IPv6 Configuration Library
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_vcg.htm
Cisco IOS Server Load Balancing
The IOS SLB feature is a Cisco IOS-based solution that provides IP server load balancing. Using the IOS SLB feature, the network administrator defines a virtual server that represents a group of real servers in a cluster of network servers known as a server farm. In this environment the clients are configured to connect to the IP address of the virtual server. The virtual server IP address is configured as a loopback address, or secondary IP address, on each of the real servers. When a client initiates a connection to the virtual server, the IOS SLB function chooses a real server for the connection based on a configured load-balancing algorithm.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/iosslb5t.htm
Cisco IOS Telephony Service Version 2.01
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/ip_ks/ipkey2.htm
Cisco IOS Voice Features on IGX 8400 Series Universal Router Module
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ft_igxxb.htm
Cisco Mobile Networks
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftmbrout.htm
Cisco Mobile Networks—Dynamic Network Support
The Cisco Mobile Networks feature enables a mobile router and its subnets to be mobile and maintain all IP connectivity, transparent to the IP hosts connecting through this mobile router. Previously, this feature was a static network implementation that supported stub routers only.
Cisco IOS Release 12.2(13)T introduces dynamic network support, which means that the mobile router dynamically registers its mobile networks to the home agent, which reduces the amount of configuration required at the home agent. For example, if a home agent supports 2000 mobile routers, the home agent does not need 2000 configurations but only a range of home IP addresses to use for the mobile routers.This registration results in minimal configuration on the home agent making administration and set up easier.
Cisco Modem User Interface
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftcmodui.htm
Cisco Quality of Service Device Manager 2.0 Support for Cisco 1700 Series Routers
QDM is now supported on Cisco 1700 series routers.
Cisco Quality of Service Device Manager (QDM) is a web-based Java application with which users can configure and monitor advanced IP-based Quality of Service (QoS) functionality within Cisco routers using a graphical user interface (GUI).
QDM 2.0 is available as a separate product download and is free of charge. If you would like to install or reinstall QDM, see the Release and Installation Notes for Cisco Quality of Service Device Manager 2.0 on Cisco.com for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/qdm/qdmrn20.htm
Cisco Service Assurance Agent Support for the Cisco 820 Series and SOHO 70 Series
For information on configuration for the Cisco Service Assurance Agent, see the following location:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/fcfprt3/fcf017.htm
The Cisco 820 series and SOHO 70 series do not currently support the Cisco Service Assurance Agent Application Performance Monitor (APM) feature.
Cisco Signaling Link Terminal G.732 Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_g732.htm
Cisco VCWare Version Checker
The Cisco VCWare Version Checker feature adds Cisco VCWare version checker warning output at bootup and when you use the show vfc version vcware and show vfc version dspware commands.
This new version checker feature detects possible mismatches between Cisco IOS software and Cisco VCWare and DSPWare. If a software mismatch is found, a compatibility mismatch warning is output at bootup and when the show vfc version commands are used. If no mismatch is found, there is no advisory output. Because the new information is advisory only, there is no action taken whether the software is compatible or incompatible.
This feature applies only to the Cisco AS5300. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftvdspck.htm
CISCO-BULK-FILE-MIB Enhancements
The Cisco Bulk File Creation MIB (CISCO-BULK-FILE-MIB.my) is a MIB module for creating and deleting bulk files of SNMP data for file transfer. The CISCO-BULK-FILE-MIB Enhancements feature enhances the Cisco Bulk File Creation MIB to support selective-row-transfer and notification-on-file-creation. Prior to this enhancement, when the MIB was used to dump large tables (for example, the ccHistoryTable), much of the data transfer consisted of duplicated data. This feature allows the SNMP manager to specify a starting row in the SNMP Get request.
This feature also introduces a notification that can be sent when file creation is complete or when there is an error during file creation. Specifically, this feature modifies the CISCO-BULK-FILE-MIB by introducing four new MIB objects (cbfDefineFileNotifyOnCompletion, cbfDefineObjectTableInstance, cbfDefineObjectNumEntries, cbfDefineObjectLastPolledInst) and a new notification object (cbfDefineFileCompletion). For details, see the CISCO-BULK-FILE-MIB.my file.
CISCO-SIP-UA-MIB Enhancements Providing Functional Parity to SIP related CLI
The CISCO-SIP-UA-MIB Enhancements Providing Functional Parity to session initiation protocol (SIP) related CLI feature has Simple Network Management Protocol (SNMP)/command-line interface (CLI) MIB enhancements to maintain parity with SIP features released to date.
No documentation work is required. The MIB is "self-documenting."
Class-Based Marking
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/cbpmark2.htm
Class-Based Weighted Fair Queueing (CBWFQ)
Class-based weighted fair queueing (CBWFQ) extends the standard WFQ functionality to provide support for user-defined traffic classes. For CBWFQ, you define traffic classes based on match criteria including protocols, access control lists (ACLs), and input interfaces. Packets satisfying the match criteria for a class constitute the traffic for that class. A queue is reserved for each class, and traffic belonging to a class is directed to the queue for that class.
Classifying VoIP Signaling and Media with DSCP for QoS
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_dscp.htm
CNS Agents SSL Security
CNS Agents SSL Security is a Cisco IOS software feature that allows for the configuration of a secure connection between the CNS Agent, running on the Cisco IOS software-based device, and a CNS Server. Secure Socket Layer (SSL) encryption for CNS connections is enabled on the Cisco IOS device (CNS Agent) side using the encrypt keyword with the cns config initial or cns config partial global configuration mode commands.
Note
CNS Configuration Agent
CNS is a foundation technology for linking users to network services. CNS SDK accomplishes this by making applications network-aware and increasing the intelligence of the network elements. CNS SDK provides building blocks to a range of customers in market segments such as Enterprise, service provider, independent software vendors, and system integrators.
The CNS Configuration Agent supports routing devices by providing:
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See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftcns_ca.htm
Note
CNS Event Agent
CNS is a foundation technology for linking users to network services. CNS SDK accomplishes this by making applications network-aware and increasing the intelligence of the network elements. CNS SDK provides building blocks to a range of customers in market segments such as Enterprise, service provider, independent software vendors, and system integrators.
The CNS Event Agent is part of the Cisco IOS infrastructure that allows Cisco IOS applications, for example CNS Configuration Agent, to publish and subscribe to events on a CNS Event Bus. CNS Event Agent works in conjunction with CNS Configuration Agent.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftcns_ea.htm
Note
CNS Flow-Through Provisioning
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftsnap26.htm
Committed Access Rate (CAR)
Committed Access Rate (CAR) can rate limit traffic based on certain matching criteria, such as incoming interface, IP Precedence, or IP access list.
Configurable PSTN Cause Code to SIP Response Mapping
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ftmap.htm
Configuring AAL2 and AAL5 for the High-Performance ATM Advanced Integration Module on the Cisco 2600 Series
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_24aim.htm
Connection-Oriented Media (Comedia) Enhancements for SIP
This feature provides the following functionality to symmetric Network Address Translation (NAT) traversal:
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The new feature implements one of many possible SIP solutions to address problems with different NAT types and traversals.With the Connection-Oriented Media (Comedia) Enhancements for SIP feature, the gateway can open an RTP session with the remote end and then update or modify the existing RTP session's remote address and port (raddr:rport) with the source address and port of the actual media packet received after passing through NAT.
Control Plane DSCP Support for RSVP
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/dscprsvp.htm
Crashinfo Support for Cisco 3600 Series
Crashinfo is a mechanism to reliably and quickly store useful information related to unexpected system shutdowns directly to a local flash card. This information can be retrieved after a system reload to aid in the analysis and resolution of a system error.
To enable this feature, use the exception crashinfo file device:filename in global configuration mode. Use the device and filename arguments to specify the flashcard and file to be used for storing the diagnostic information. To change the size of the crashinfo buffer, use the exception crashinfo buffersize command. The default buffer size is 32 kilobytes.
Customer Profile Idle Timer Enhancements for Interesting Traffic
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftprfidl.htm
Default VPDN Group Template
The Default VPDN Group Template feature introduces the ability to configure global default values for virtual private dialup network (VPDN) parameters in a VPDN template. These global default values are applied to all VPDN groups, unless specific values are configured for individual VPDN groups. Previously, the Cisco IOS software required that VPDN parameters be configured for each individual VPDN group if the system default values were not desired.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdevpdn.htm
DF Bit Override Functionality with IPSec Tunnels
The DF Bit Override Functionality with IPSec Tunnels feature allows customers to configure the setting of the DF bit when encapsulating tunnel mode IPSec traffic on a global or per-interface level. Thus, if the DF bit is set to clear, routers can fragment packets regardless of the original DF bit setting. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftdfipsc.htm
DFP Support in DistributedDirector
DistributedDirector can obtain load information from Cisco LocalDirector, Catalyst 4840g, and other clients using Dynamic Feedback Protocol (DFP). This protocol allows the user to configure the DistributedDirector to communicate with various DFP agents. The DistributedDirector tells the DFP agents how often they should report load information; then the DFP agent can tell the DistributedDirector which LocalDirector cluster to remove from providing service.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/distrdir/dtdddfp.htm
DHCP Client on WAN Interfaces
The DHCP Client on WAN Interfaces feature extends the Dynamic Host Configuration Protocol (DHCP) to allow PPP over ATM (PPPoA) and certain ATM interfaces to acquire an IP address through DHCP. By using DHCP rather than the IP Control Protocol (IPCP), a DHCP client can acquire other useful information such as DNS server addresses, the DNS default domain name, and default route.
Previously, the ip address dhcp interface configuration command could only be used on Ethernet interfaces. This feature allows the ip address dhcp command to be used on WAN interfaces.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftwandhp.htm
DHCP Client—Dynamic Subnet Allocation API
The DHCP Client-Dynamic Subnet Allocation API feature is an application program interface (API) that is called by the DHCP Server-On-Demand Address Pool Manager feature for obtaining a subnet or releasing a subnet to the source server via DHCP. This feature allows automated configuration of Layer 3 devices for simplified deployment.
DHCP Option 82 Support for Routed Bridge Encapsulation
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftrbeo82.htm
DHCP Relay Agent Support for Unnumbered Interfaces
Relay agents are used to forward requests and replies between clients and servers when they are not on the same physical subnet. Relay agent forwarding is distinct from the normal forwarding of an IP router, where IP datagrams are switched between networks somewhat transparently. Relay Agents receive Dynamic Host Configuration Protocol (DHCP) messages and then generate a new DHCP message to send out on another interface.
The Cisco IOS DHCP relay agent supports IP unnumbered interfaces. The DHCP relay agent automatically adds a static host route specifying the unnumbered interface as the outbound interface.
DHCP Relay—MPLS VPN Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdhmpls.htm
DHCP Server Import All Enhancement
When the import all DHCP pool configuration command is used, the DHCP Server Import All Enhancement feature allows options imported by one subsystem to coexist with options imported from another subsystem. When the session is terminated or the lease is released, the imported options are cleared from the DHCP server database.
DHCP Server—On-Demand Address Pool Manager
The DHCP Server-On-Demand Address Pool Manager is a feature in which pools of IP addresses can be dynamically increased or reduced in size depending on the address utilization level. This feature supports address assignment using the Dynamic Host Configuration Protocol (DHCP) for customers using private addresses. Each on-demand address pool (ODAP) is configured and associated with a particular Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN).
When configured, the ODAP is populated with one or more subnets leased from a source server and is ready to serve address requests from DHCP clients or from PPP sessions. The source server can be a remote DHCP server or a RADIUS server (via AAA). Currently, only the Cisco Access Registrar RADIUS server supports ODAPs. Subnets can be added to the pool when a certain utilization level (high utilization mark) is achieved. When the utilization level falls below a certain level (low utilization mark), a subnet can be returned to the server from which it was originally leased.
This feature allows customers to optimize their use of IP addresses, thus conserving address space.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftondhcp.htm
DHCP Server—Option to Ignore All BOOTP Requests
The DHCP Server—Option to Ignore All BOOTP Requests feature introduces the following new global configuration command: ip dhcp bootp ignore. This command allows the Cisco IOS DHCP server to ignore received BOOTP requests.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdbootp.htm
DHCP Server Options Import and Autoconfiguration
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t2/dt_dhcpi.htm
Dialer CEF
The Dialer CEF feature introduces Cisco Express Forwarding (CEF) support for dialer interfaces. The Dialer CEF feature allows packets to be CEF switched across dialer interfaces rather than being low-end switched (LES) or fast switched. Compared to fast switching, CEF switching support improves switching performance by decreasing CPU utilization and lowering the packet loss rate. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftdlrcef.htm
Dialer Persistent
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftdperst.htm
Dialer Map VRF-Aware for an MPLS VPN
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftmapvrf.htm
Dial-Peer Configuration Command Default Value Changes
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/01972.htm
Dialer Watch Connect Delay
The Dialer Watch Connect Delay feature introduces the ability to configure a delay in bringing up a secondary link when a primary link that is monitored by Dialer Watch goes down and is removed from the routing table. Previously, the router would instantly dial a secondary route without allowing time for the primary route to come back up. When the Dialer Watch Connect Delay feature is configured, the router will check for availability of the primary link at the end of the specified delay time before dialing the secondary link.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdialwl.htm
Diff-Serv-aware MPLS Traffic Engineering (DS-TE)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_ds_te.htm
Direct Inward Dialing for Cisco IAD2420 Series Integrated Access Devices
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdidiad.htm
Disabling V.110 Padding
In networks with devices such as terminal adapters (TAs) and global system for mobile communication (GSM) handsets that do not fully conform to the V.110 modem standard, you will need to disable V.110 padding. To disable the padded V.110 modem speed report required by the V.110 modem standard, use the no isdn v110 padding command in interface configuration mode.
DistributedDirector Boomerang Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftddboom.htm
DistributedDirector Cache Auto Refresh
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftrefrsh.htm
DistributedDirector Configurable Cache
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftddcach.htm
DistributedDirector Enhancements for Cisco IOS Release 12.2(4)T3
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftdd1224.htm
DistributedDirector MIB Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftddmib.htm
Distributed IPv6 for Cisco IOS Software
This feature provides distributed CEF switching support for IPv6 on the Cisco 7500 platforms.
Distributed Link Fragmentation and Interleaving for Frame Relay and ATM Interfaces on Cisco 7500 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftdlfi.htm
Distributed Link Fragmentation and Interleaving over Leased Lines
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdlfi2.htm
Distributed Management Event and Expression MIB Persistence
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftmibpr1.htm
Distributed Management Event MIB Conformance to RFC 2981
Prior to Cisco IOS Release 12.2(4)T3, Event MIB support in Cisco IOS software was based on the IETF internet draft version. In Cisco IOS Release 12.2(4)T3, the Cisco implementation of the EVENT-MIB was updated to comply with the finalized version of the Event MIB, as defined in RFC 2981. For details, see RFC 2981, available through the IETF website at http://www.ietf.org.
Distributed Multilink Point-to-Point Protocol for Cisco 7500 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t3/multippp.htm
Distributed Time-Based Access Lists
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftdistac.htm
Distributed Traffic Shaping
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/dtdts.htm
Distinguished Name Based Crypto Maps
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftdnacl.htm
DLR Enhancements: PGM RFC-3208 Compliance
In compliance with RFC 3208, the DLR Enhancements feature adds off-tree designated local repairer (DLR) support and redirecting poll response (POLR) capability for upstream DLRs to the Cisco implementation of Pragmatic General Multicast (PGM).
DLSw+ Enhanced Load Balancing
In a network with multiple capable paths, the Data Link Switch Plus (DLSw+) Load Balancing Enhancements feature improves traffic load balancing between peers by distributing new circuits based on existing loads and the desired ratio.
For each capable peer (peers that have the lowest or equal cost specified), the DLSw+ Load Balancing feature calculates the difference between the desired and the actual ratio of circuits being used on a peer. It detects the path that is underloaded in comparison to the other capable peers and assigns new circuits to that path until the desired ratio is achieved.
Note
DLSw+ Peer Group Clusters
The DLSw+ Peer Group Clusters feature reduces the explorer packet replication that typically occurs in a large Data Link Switch Plus (DLSw+) peer group design, where there are multiple routers connected to the same LAN.
The DLSw+ Peer Group Clusters feature associates DLSw+ peers (that are connected to the same LAN) into logical groups. Once the multiple peers are defined in the same peer group cluster, the DLSw+ Border Peer recognizes that it does not have to forward explorers to more than one member within the same peer group cluster.
Note
DNS Client AAAA Record Lookups over IPv6
The DNS Lookups over an IPv6 Transport feature adds support for IPv6 AAAA record types over an IPv6 transport in the Domain Name System (DNS) name-to-address and address-to-name lookup processes.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm
DNS Server Support for NS Records
DistributedDirector has improved server load-balancing capacity with the DNS Server Support for NS Records feature. This feature adds support for name server (NS) records to the Cisco IOS Domain Name System (DNS) server. With this feature, the DistributedDirector can distribute the server-selection process to multiple DistributedDirectors, improving overall server capacity.
DRP Agent - Boomerang Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdrpcli.htm
Dual Serial Line Management to Interface Lucent 5ESS
This feature is a part of the Cisco IOS Telco Feature Set, a bundle of applications specific to the data communications network (DCN) environment. Specifically, this feature supports X.25-to-TCP protocol translation, and provides dual serial interfaces to preserve the redundancy and monitoring capability available from SCC0 and SCC1 links on a Lucent 5ESS switch in the DCN network.
Dual Tone Multifrequency Relay for SIP Calls Using Named Telephone Events
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ft_dtmf.htm
E1 R2 Signaling
R2 signaling is an international signaling standard that is common to channelized E1 networks. The E1 R2 Signaling feature was introduced in Cisco IOS Release 11.3(2)T and is now supported on Cisco 1751 and Cisco 1760 platforms in Cisco IOS Release 12.2(15)T and Cisco IOS Release 12.3.
A client process, such as HSRP, Virtual Router Redundancy Protocol (VRRP), or Gateway Load Balancing Protocol (GLBP), can now register with the tracking service, its interest in tracking a particular object, such as an interface or a route, and then be notified when the tracked object changes state. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/fthsrptk.htm
Easy VPN Server
The Easy VPN Server feature introduces server support for the Cisco VPN Client Release 3.x software clients and Cisco VPN hardware clients. It allows a remote end user to communicate using IP Security (IPSec) with any Cisco IOS Virtual Private Network (VPN) gateway. Centrally managed IPSec policies are "pushed" to the client by the server, minimizing configuration by the end user.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftunity.htm
Enabling Fax Rate on POTS to POTS Fax Calls
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftfxpots.htm
Encrypted Vendor-Specific Attributes
The Encrypted Vendor-Specific Attributes feature introduces support for the following three types of string vendor-specific attributes (VSAs):
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftencvsa.htm
Enhanced Billing Support for SIP Gateways
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ftmsnbil.htm
Enhanced Multi-Language Support for Cisco IOS Interactive Voice Response
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftmultil.htm
Enhanced Password Security
The Enhanced Password Security feature allows you to configure Message Digest 5 (MD5) encryption for username passwords. Before the introduction of this feature, there were two types of passwords associated with usernames: Type 0, which is a clear text password visible to any user who has access to privileged mode on the router, and type 7, which is a password with a weak, exclusive, or type encryption. Type 7 passwords can be retrieved from the encrypted text by using publicly available tools.
Use the username secret command to configure a username and an associated MD5-encrypted secret.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_md5.htm
Enhanced Test Command
The Enhanced Test Command feature introduces two new commands—aaa user profile and aaa attribute—that allow you to create a named user profile with calling line identification (CLID) or dialed number identification service (DNIS) attribute values, which can be associated with a test aaa group command.
Use the aaa attribute command to add CLID or DNIS attribute values to a user profile, which is created by using the aaa user profile command. The CLID or DNIS attribute values can be associated with the record that is going out with the user profile (via the test aaa group command), thereby providing the RADIUS server with access to CLID or DNIS attribute information for all incoming calls. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftaaacmd.htm
Enhanced VoiceXML Diagnostics
With the Enhanced VoiceXML Diagnostics feature, debugging output can be filtered for all VoiceXML applications except the application named in the debug condition application voice command. When this command is configured, the gateway displays debugging messages only for the specified VoiceXML application when using the debug vxml and debug http client commands.
See the following documents for additional information:
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ivrapp/index.htm
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/rel_docs/vxmlprg/index.htm
Enhancement to the show standby Command
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/fthsrp.htm
Enhancements for the Cisco VG200 Voice Gateway
The Enhancements for the Cisco VG200 Voice Gateway feature provides the Cisco VG200 platform with increased voice gateway feature parity to the Cisco 2600 series, Cisco 3600 series, and Cisco 3700 series. This feature is also supported on the Cisco VG200XM platform upgrade. The Cisco VG200XM is new for Cisco IOS Release 12.2(11)T and is a more powerful version of the Cisco VG200, offering higher processing power and improved performance.
The Cisco VG200 platforms provide the following default memory options:
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The Enhancements for the Cisco VG200 Voice Gateway feature includes the following features:
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Update to the Enhancements for the Cisco Voice Gateway 200
The Enhancements for the Cisco Voice Gateway 200 (Cisco VG200) feature provides the Cisco VG200 platform (also called CAG-VG200) with increased voice gateway feature parity to the Cisco 2600, Cisco 3600, and Cisco 3700 platforms. This update provides additional feature functionality on the Cisco VG200 platform.
The Cisco VG200 platforms provide the following default memory options: CAG-VG200—16 MB of Flash, 64 MB of DRAM.
Enhancements to H.323 Call Statistics
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftcallst.htm
Error Log Count Enhancement
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/fterrlog.htm
Event Tracer
The Event Tracer feature provides a binary trace facility for troubleshooting Cisco IOS software. This feature gives Cisco service representatives additional insight into the operation of the Cisco IOS software and can be useful in helping to diagnose problems in the unlikely event of an operating system malfunction or, in the case of redundant systems, route processor switchover.
See the following document for additional information:
EXEC Commands in Configuration Mode
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/do_cmd.htm
Fax and Modem Pass-Through over VoIP
On detection of the fax or modem tone on an established VoIP call, the gateways switch into modem fax or pass-through mode: the voice codec and configuration is suspended and the pass-through parameters are loaded for the duration of the fax or modem session. This changes the bandwidth needed for the call to the equivalent of G.711.
With pass-through, the fax or modem traffic is carried between the two gateways in RTP packets, using an uncompressed format resembling the G.711 codec. Packet redundancy may be used to mitigate the effects of packet loss in the IP network. Even so, fax and modem pass-through remain susceptible to packet loss, jitter and latency in the IP network. The two endpoints must be clocked synchronously for this type of transport to work predictably.
The Fax and Modem Pass-Through feature is also known as Voice Band Data (VBD) by the International Telecommunication Union (ITU). VBD refers to the transport of fax or modem signals over a voice channel through a packet network with an encoding appropriate for fax or modem signals. The minimum set of coders for VBD mode is G.711 ulaw and alaw with VAD disabled. For modem transport, Echo cancellation is also be disabled.
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Fax Detection for Cisco 2600 Series and Cisco 3600 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/pull2snf.htm
Fax Detection for VoiceXML
With the Fax Detection for VoiceXML feature, when a VoiceXML fax detection application is configured on the gateway, callers can dial a single number for both voice and fax calls. The gateway automatically detects that a call is a fax transmission by listening for comfort noise generation (CNG), the distinctive fax "calling" tone. When configured for fax detection, the Cisco VoiceXML gateway continuously listens to incoming calls to determine which calls are voice or fax. The gateway then routes the calls to the appropriate application or media server.
See the following documents for additional information:
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ivrapp/index.htm
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http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/rel_docs/vxmlprg/index.htm
Featurettes and Supplementary Voice Services for Cisco 800 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_vs800.htm
File System Check and Repair for PCMCIA ATA Disks
This feature introduces a File-System-Check (fsck) utility in Cisco IOS software for FAT filesystems on PCMCIA disks. The utility performs functions such as checking the boot sector and partition table, checking file and directory structure, reclaiming unused disk space, and updating the FAT file structure. Prior to the introduction of this utility, corrupt files could not be removed from ATA disks using the Cisco IOS CLI. This utility is run using the fsck privileged EXEC mode command.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ft_fsck.htm
Firewall Authentication Proxy
The Cisco IOS Firewall authentication proxy feature allows network administrators to apply specific security policies on a per-user basis. Previously, user identity and related authorized access was associated with the IP address of a user, or a single security policy had to be applied to an entire user group or sub network. Now, users can be identified and authorized on the basis of their per-user policy, and access privileges tailored on an individual basis are possible, as opposed to general policy applied across multiple users.
With the authentication proxy feature, users can log in to the network or access the Internet via HTTP, and their specific access profiles are automatically retrieved and applied from a CiscoSecure ACS, or other RADIUS, or TACACS+ authentication server. The user profiles are active only when there is active traffic from the authenticated users.
The authentication proxy is compatible with other Cisco IOS security features such as Network Address Translation (NAT), Context-based Access Control (CBAC), IP Security (IPSec) encryption, and Cisco Secure VPN Client (VPN client) software.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/secur_c/scprt3/scdauthp.htm
Firewall Feature Set
The Cisco IOS Firewall feature set provides firewall-specific security features to the Cisco CVA122 Cable Voice Adapter. When this feature is enabled, the router acts as a buffer between the Internet and other public networks and the private network that is connected to the router. Security is provided by access lists, as well as by examining incoming traffic for suspicious activity.
The firewall-specific security features include the following:
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Firewall Feature Set for Cisco 820 Series Routers
The Cisco IOS Firewall feature set is available on the Cisco 820 series routers. This feature set provides the following capabilities:
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The Cisco IOS Firewall Feature Set feature module provides several sample firewall configurations, including the following examples for small-office environments:
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Four SS7 Link Support on the Cisco Signaling Link Terminal
The Four SS7 Link Support on the Cisco Signaling Link Terminal feature introduces support for up to four Cisco SS7 links on a new platform for the Cisco SLT, the Cisco 2651 Multiservice Access Router. All existing Cisco 2611-based Cisco SLT functionality is supported on the new platform, and both Cisco SLT platforms use the same Cisco IOS software image.
The Cisco 2651-based Cisco SLT supports up to four SS7 A-links and F-links, and each SS7 link can support up to 0.4 erlangs of signaling traffic during normal operation. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_4lnk.htm
Frame Relay 64-Bit Counters
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft64bits.htm
Frame Relay Discard Eligibility Bit Setting
The Modular QoS CLI has been enhanced to include matching and marking based on the Frame Relay Discard Eligibility (DE) bit. Frame Relay DE bit Matching and Marking is documented as part of the Class-Based Marking feature module.
The DE bit in the address field of a Frame Relay frame is used as a method for prioritizing the discarding of frames in congested frame relay networks. The Frame Relay DE bit has only one bit and can therefore only have two settings, 0 or 1. If congestion occurs in a Frame Relay network, frames with the DE bit set at 1 are discarded before frames with the DE bit set at 0. Therefore, important traffic should have the DE bit set at 0 and less important traffic should be forwarded with the DE bit set at 1.
The default DE bit setting is 0. The Class-Based Packet Marking feature allows users to change the DE bit setting to 1 for various traffic, giving users the option of keeping the default value of 0 or changing the value to 1. Users can therefore use the Frame Relay DE bit marking to prioritize frames in a Frame Relay network.
Frame Relay MIB Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftfrmibe.htm
Frame Relay Point-Multipoint Wireless
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/bbfrsmfw.htm
Frame Relay PVC Bundles with IP and MPLS QoS Support
Frame Relay PVC bundles allow you to associate a group of Frame Relay permanent virtual circuits (PVCs) with a single next-hop address. When Frame Relay PVC bundles are used with IP, packets are mapped to specific PVCs in the bundle on the basis of the precedence value or differentiated services code point (DSCP) settings in the type of service (ToS) field of the IP header. Each packet is treated differently according to the QoS configured for each PVC.
Frame Relay PVC bundles with MPLS QoS support extends Frame Relay PVC bundle functionality to support the mapping of Multiprotocol Label Switching (MPLS) packets to specific PVCs in the bundle. MPLS packets are mapped to PVCs according to the settings of the experimental (EXP) bits in the MPLS packet header.Waiting for information.
Frame Relay Queueing and Fragmentation at the Interface
The Frame Relay Queueing and Fragmentation at the Interface feature introduces support for low-latency queueing (LLQ) and FRF.12 end-to-end fragmentation on a Frame Relay interface. This new feature simplifies the configuration of low-latency, low-jitter quality of service (QoS) by enabling the queueing policy and fragmentation configured on the main interface to apply to all permanent virtual circuits (PVCs) and subinterfaces under that interface. Before the introduction of this feature, queueing and fragmentation had to be configured on each individual PVC. Subrate shaping can also be configured on the interface.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/frfrintq.htm
Functionality Changed for the tunnel mpls traffic-eng autoroute metric Command
The default behavior of the tunnel mpls traffic-eng autoroute metric interface configuration command has been changed. This command now combines the costs of all Intermediate-System to Intermediate-System (IS-IS) routes that are downstream from a Traffic Engineering (TE) tunnel into an additive path metric. IS-IS uses the additive path metric to set the metric of the TE tunnel.
FXO Answer and Disconnect Supervision
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_ansds.htm
G.SHDSL Symmetric DSL Support
G.SHDSL is a new multirate symmetric high-speed digital subscriber line (DSL) technology for the local loop that connects customer premises equipment (CPE) to the central office (CO) in the access network. This access technology for business applications is important because of its symmetric and multirate functionality. G.SHDSL refers to the approved standard officially designated in International Telecommunication Union-Telecommunications Standards Section (ITU-T) G.991.2.
Gatekeeper-to-Gatekeeper Authentication
The Gatekeeper-to-Gatekeeper Authentication feature provides additional security for H.323 networks by introducing the ability to validate intra-domain and interdomain gatekeeper-to-gatekeeper Location Request (LRQ) messages on a per-hop basis. When used in conjunction with per-call security using the interzone ClearToken (IZCT), network resources and security holes are protected from hackers. The IZCT was introduced in the Inter-Domain Gatekeeper Security Enhancement feature released in Cisco IOS Release 12.2(2)XA and Cisco IOS Release 12.2(4)T.
The Gatekeeper-to-Gatekeeper Authentication feature provides a Cisco Access Token (CAT) to carry authentication within zones. The CAT is used by adjacent gatekeepers to authenticate each other and is configured on a per-zone basis. In addition, service providers can specify inbound passwords to authenticate LRQ messages coming from foreign domains and outbound passwords to be included in LRQ messages to foreign domains.
This release documents two new commands: security password-group and security zone.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ft_idlrq.htm
Gatekeeper Transaction Message Protocol Interface Resiliency Enhancement
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ftgkire.htm
Generic Routing Encapsulation (GRE) Tunnel Keepalive
The GRE Tunnel Keepalive feature provides the capability of configuring keepalive packets to be sent over IP-encapsulated generic routing encapsulation (GRE) tunnels. You can specify the rate at which keepalives will be sent and the number of times that a device will continue to send keepalive packets without a response before the interface becomes inactive.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/grekpliv.htm
GKTMP Security Token Enhancement
The GKTMP Security Token Enhancement feature provides support for ClearTokens in messages between a NetSpeak route server and the Cisco IOS gatekeeper. The Request ARQ, Response ARQ, Response ACF, Request LRQ, Response LRQ, Request LCF, and Response LCF messages between the Cisco IOS gatekeeper and the route server now include ClearTokens. In addition, the Response ARQ messages include both gateways in a local domain or zone and remote zone gatekeepers and allow prioritization of the resulting sets of gateways. The Response LRQ messages support a combination of endpoint addresses and a list of remote zone gatekeepers to which to forward the LRQ message.
Global Modem Counters
The Global Modem Counters feature adds two new global call counters for ISDN calls to the Cisco IOS software. The CISCO-POP-MGMT-MIB has been updated with two new objects, cpmCallVolSuccISDNDigital and cpmCallVolAnalogCallClearedNormally. The cpmCallVolSuccISDNDigital object allows the Cisco IOS software to track the number of successful incoming and outgoing ISDN digital data calls that have occurred since the system was started. The cpmCallVolAnalogCallClearedNormally object allows the Cisco IOS to track the number of successful incoming and outgoing analog data calls.
No new commands have been introduced with this feature. To use this feature, enable System Network Management Protocol (SNMP) and the corresponding OIDs for these new objects. To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB website on Cisco.com at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
G.SHDSL Symmetric DSL Support for Cisco IAD2420 Series IAD
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_rgdsl.htm
H.323 Call Redirection Enhancements
The user-to-user information element (UUIE) of the Facility message is used primarily for call redirection. The UUIE contains a field, facilityReason, that indicates the nature of the redirection. The H.323 Call Redirection Enhancements feature adds support for two of the reasons: routeCallToGatekeeper and callForwarded. It also provides a non-standard method for using the Facility message to effect call transfer.
This feature was previously released in Cisco IOS Release 12.2(2)T on Cisco 1700, Cisco 2600 series, Cisco 3600 series, Cisco MC3810, Cisco AS5300, Cisco uBR924 platforms. This release is porting the feature into the IAD2420 platform.
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftcallrd.htm
H.323 Dual Tone Multifrequency Relay Using Named Telephone Events
The NTE method of DTMF relay was originally available on Cisco gateways only for Session Initiation Protocol (SIP) and Media Gateway Control Protocol (MGCP) gateways. The H.323 DTMF Relay Using Named Telephone Events (NTE) feature adds support for this method for H.323 gateways.
Cisco H.323 gateways advertise capabilities using the H.245 capabilities messages. By default, they advertise that they can receive all DTMF relay modes. If the capabilities of the remote gateway do not match, the Cisco H.323 gateway transmits DTMF tones as in-band voice. Configuring DTMF relay on the Cisco H.323 gateway sets preferences for how the gateway handles DTMF transmission. If multiple methods are configured, the priority is as follows:
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In addition to support for NTE, the H.323 DTMF Relay Using NTE feature provides support for asymmetrical payload types. Payload types can differ between local and remote endpoints. Therefore, the Cisco gateway can transmit one payload type value and receive a different payload type value.
This feature was previously released in Cisco IOS Release 12.2(11)T on Cisco 2600 series, Cisco 3600 series, Cisco AS5300, Cisco AS5350, Cisco AS5400, Cisco AS5800, and Cisco AS5850 platforms. This release is porting the feature into the IAD2420 platform.
H.323 Redundant Zone Support
The Redundant H.323 Zone Support feature allows users to configure multiple gatekeepers to service the same zone or technology prefix. This feature can be used with the Gateway Support for Alternate Gatekeepers feature, which allows a user to configure a gateway to point to two gatekeepers (one as the primary and the other as the alternate). Together, these features allow a user to configure a Cisco gateway to send location requests (LRQs) to two or more Cisco gatekeepers---one as a primary and the others as back up gatekeepers.
This feature was previously released in Cisco IOS Release 12.1(1)T on Cisco 2600 series, Cisco 3600 series, Cisco MC3810, Cisco AS5200, Cisco AS5300, and Cisco AS5800 platforms. This release is porting the feature into the Cisco IAD2420 platform.
H.323 Support for Virtual Interfaces
The H.323 Support for Virtual Interfaces feature allows users to configure the IP address of the gateway, so that the IP address include in the H.323 packet is deterministic and consistently indicates the same address for the source.
In previous releases of the Cisco IOS software, the source address included in the H.323 packet could vary depending on the protocol (RAS, H.225, H.245, or RTP). This makes it difficult to configure firewall applications to work with H.323 messages.
The H.323 Support for Virtual Interfaces feature addresses that difficulty by allowing the user to explicitly configure an IP address to be used for all protocols
This feature was previously released in Cisco IOS Release 12.1(2)T on Cisco 2500 series, Cisco 2600 series, Cisco 3600 series, Cisco AS5300, Cisco 7200 series, and Cisco uBR924 platforms. This release is porting the feature into the IAD2420 platform.
H.323 Version 2 Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xa/122xa_2/pulh323.htm
H.323 Version 2 Phase 2
Cisco H.323 Version 2 Phase 2 upgrades Cisco IOS software by adding the following optional features, and facilitates customized extensions to the Cisco gatekeeper:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t1/h323v2p2.htm
High-Performance Gatekeeper
The Cisco High-Performance Gatekeeper feature introduces new gatekeeper functionality and modifications for facilitating carrier class reliability, security, and performance into the Cisco voice network solution portfolio. These H.323 standard-based features have carrier grade reliability and performance characteristics with a robust open application protocol interface to enable development of enhanced applications like voice VPNs and wholesale voice solutions.
This feature addresses the scalability, redundancy, and performance aspects of the gatekeeper as part of the Cisco Multimedia Conference Manager (MCM) to present a complete Cisco solution. The Cisco H.323 MCM provides the network administrator with the ability to identify H.323 traffic and to apply appropriate policies.
See the following document for additional information:
HTTP 1.1 Client
This feature implements support for HTTP clients within Cisco IOS software compliant with the HTTP 1.1 standard (RFC 2616). The HTTP 1.1 Client allows the network device to contact a remote web server and obtain content or interact with remote applications. The HTTP 1.1 Client is enabled by default on supported platforms.
iBGP Multipath Load Sharing
When a Border Gateway Protocol (BGP) speaker router with no local policy configured receives multiple network layer reachability information (NLRI) from the internal BGP for the same destination, the router will choose one internal BGP path as the best path. The best path is then installed in the IP routing table of the router.
The Internal BGP Multipath Load Sharing feature enables the BGP speaker router to select multiple internal BGP paths as the best paths to a destination. The best paths or multipaths are then installed in the IP routing table of the router.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ft11bmls.htm
ICMP ECHO-Based RTT Probing by DRP Agents
DistributedDirector users can now control Director Response Protocol (DRP) agents to send both TCP and ICMP packets for round-trip time (RTT) measurement.The RTT measurement is used to dynamically direct Internet customers to the closest regional web proxy based on response time.
In the original implementation, some Internet DNS servers did not respond when the DRP agents sent them a query to measure the RTT.
This feature introduces the new ip director drp rttprobe tcp | icmp command that enables DistributedDirector to instruct a DRP agent to send ICMP-echo packets to measure the RTT.
When both ICMP and TCP are enabled, DistributedDirector will instruct DRP agents to send both TCP and ICMP packets for RTT probing. The returned RTT from a DRP agent will be the RTT collected from either the TCP or ICMP mechanism, which ever becomes available first.
IGMP MIB Support Enhancements for SNMP
The Internet Group Management Protocol (IGMP) is used by IP hosts to report their multicast group memberships to neighboring multicast routers. The IGMP MIB describes objects that enable users to remotely monitor and configure IGMP using Simple Network Management Protocol (SNMP). It also allows users to remotely subscribe and unsubscribe from multicast groups. The IGMP MIB Support Enhancements for SNMP feature adds full support of RFC 2933 (Internet Group Management Protocol MIB) in Cisco IOS software. There are no new or modified Cisco IOS commands associated with this feature.
For complete details on the IGMP MIB, see the IGMP-STD-MIB.my file available from the Cisco MIB website on Cisco.com at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
IGMP Version 3—Explicit Tracking of Hosts, Groups, and Channels
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_xtrk.htm
IKE—Initiate Aggressive Mode
The IKE—Initiate Aggressive Mode feature allows you to specify RADIUS Tunnel attributes (Tunnel-Client-Endpoint [66] and Tunnel-Password [69]) for an IPSec peer and to initiate an IKE aggressive mode negotiation with the tunnel attributes. This feature is best implemented in a crypto hub-and-spoke scenario, in which the spokes initiate IKE aggressive mode negotiation with the hub by using the preshared keys that are specified as tunnel attributes and stored on the AAA server. This scenario is scalable because the preshared keys are kept at a central repository (the AAA server) and more than one hub router and one application can use the information.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_ikeag.htm.
Implementing OSPF for IPv6
The Open Shortest Path First (OSPF) Version 3 for IPv6 (RFC 2740) feature expands on OSPF to provide support for IPv6 routing prefixes. In OSPF for IPv6, the commands used to customize OSPF are in interface configuration mode rather than router configuration mode. When using a nonbroadcast multiaccess (NBMA) interface in OSPF for IPv6, users must manually configure the router in order to detect neighbors.
Integrated IS-IS Multi-Topology Support for IPv6
The Integrated IS-IS Multi-Topology Support for IPv6 feature provides support for routing IPv6 prefixes in Intermediate System-to-Intermediate System (IS-IS) using a multi-topology solution.
Integrated IS-IS Point-to-Point Adjacency Over Broadcast Media
When a network consists of only two networking devices that are connected to broadcast media and using the integrated IS-IS protocol, it is better for the system not to have to handle the link as a broadcast link but rather as a point-to-point link. The Integrated IS-IS Point-to-Point Adjacency Over Broadcast Media feature introduces a new command to make IS-IS behave as a point-to-point link between the networking devices. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftissp2p.htm
Integrated IS-IS Support for IPv6
IPv6 supports Interior Gateway Protocols (IGPs) and Exterior Gateway Protocols (EGPs). Routing Information Protocol (RIP) and Integrated Intermediate System-to-Intermediate System (IS-IS) protocols are the supported IGPs for IPv6. Multiprotocol Border Gateway Protocol (BGP) is the supported EGP for IPv6.
IS-IS in IPv6 functions the same as and offers many of the same benefits as IS-IS in IPv4. IPv6 enhancements to IS-IS allow IS-IS to advertise IPv6 prefixes in addition to IPv4 and Open System Interconnection (OSI) routes. Extensions to the IS-IS CLI allow configuration of IPv6-specific parameters. IS-IS in IPv6 extends the address families supported by IS-IS to include IPv6, in addition to OSI and IPv4.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/ftipv6s.htm
Interactive Voice Response Version 2.0 on Cisco VoIP Gateways
IVR Version 2.0 is the fourth release of IVR and TCL scripting on Cisco IOS VoIP gateways. The Cisco IVR feature (first made available in Cisco IOS Release 12.0(3)T and 12.0(7)T) provides IVR capabilities using TCL scripts.
IVR is a term that is used to describe systems that provide information in the form of recorded messages over telephone lines in response to user input in the form of spoken words, or more commonly dual tone multifrequency (DTMF) signaling. For example, when a user makes a call with a debit card, an IVR application is used to prompt the caller to enter a specific type of information, such as a PIN. After playing the voice prompt, the IVR application collects the predetermined number of touch tones (digit collection), forwards the collected digits to a server for storage and retrieval, and then places the call to the destination phone or system. Call records can be kept and a variety of accounting functions performed.
The IVR application (or script) is a voice application designed to handle calls on a voice gateway, which is a router that is equipped with Voice over IP (VoIP) features and capabilities.
The IVR feature allows an IVR script to be used during call processing. The scripts interact with the IVR software to perform the various functions. Typically, IVR scripts contain both executable files and audio files that interact with the system software.
IVR Version 2.0 is made up of several separate components in the section that follows. These new features include:
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These features add scalability and enable the IVR scripting functionality on VoIP call legs. In addition, support for RTSP enables VoIP gateways to play messages from RTSP-compliant announcement servers.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5800/12_2t/pulskynx.htm
Interactive Voice Response Version 2.0 on VoIP Gateways
Interactive Voice Response (IVR) consists of simple voice prompting and digit collection to gather caller information for authenticating the user and identifying the destination. IVR applications can be assigned to specific ports or invoked on the basis of dialed number identification service (DNIS). An IP Public Switched Telephone Network (PSTN) gateway can have several IVR applications to accommodate many different gateway services, and you can customize the IVR applications to present different interfaces to the various callers.
IVR systems provide information in the form of recorded messages over telephone lines in response to user input in the form of spoken words, or more commonly, dual tone multifrequency (DTMF) signaling. IVR uses Tool Command Language (TCL) scripts to gather information and to process accounting and billing.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_ivr72.htm
Note
Inter-Domain Gatekeeper Security Enhancement
For detailed information about this feature, see the following document:
Interface Alias Long Name Support
The Interface Alias (ifAlias) is a user-specified description of an interface used for SNMP network management. The ifAlias is an object in the Interfaces Group MIB (IF-MIB), which can be set by a network manager to "name" an interface. The ifAlias value for an interface or subinterface can be set using the description command in interface configuration mode, or by using a Set operation from a Network Management System.
Before Cisco IOS Release 12.2(2)T, ifAlias descriptions for subinterfaces were limited to 64 characters. A new Cisco IOS software command, snmp ifmib ifalias long, configures the system to handle ifAlias descriptions of up to 256 characters. IfAlias descriptions appear in the output of the show interfaces CLI command. See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftshowif.htm
Interface Index Display
The Interface Index (IfIndex) is a user-specified identification number for an interface used in SNMP network management. The IfIndex is an object in the Interfaces Group MIB (IF-MIB), which can be set by a network manager to consistently identify an interface. A new Cisco IOS software command, show snmp mib ifmib ifindex, allows the user to display the IfIndex identification numbers assigned to interfaces and subinterfaces using the CLI. The IFIndex provides a way to display these values without the need for a Network Management Station. See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftshowif.htm
Interim Local Management Interface (ILMI)
The Interim Local Management Interface (ILMI) is a protocol defined by the ATM Forum for setting and capturing physical layer, ATM layer, virtual path, and virtual circuit parameters on ATM interfaces. ILMI uses simple network management protocol (SNMP) messages without User Datagram Protocol (UDP) and IP, and organizes managed objects into the following four management information bases (MIBs).
Interim Update at Call Connect
With this feature, Cisco IOS software generates and sends an additional updated interim accounting record to the accounting server when a call leg is connected. All attributes (for example, h323-connect-time and backward-call-indicators) available at the time of call connection are sent through this interim updated accounting record.
Interim-Interswitch Signaling Protocol (IISP)
The Interim-Interswitch Signalling Protocol (IISP) defines a static routing protocol (using manually configured prefix tables) for communication between ATM switches. IISP provides support for switched virtual circuits (SVCs) on ATM switches that do not support the Private Network-to-Network Interface (PNNI) protocol.
Interworking Signaling Enhancements for H.323 and SIP VoIP
The Interworking Signaling Enhancements for H.323 and SIP VoIP feature enables VoIP networks to properly signal the setup and tear-down of calls when interworking with PSTN networks. These enhancements ensure that in-band tones and announcements are generated when needed so that the voice path is cut-through at the appropriate point of call setup and that early alerting (ringing) does not occur. In addition, support for network-side ISDN and the reducing of speech clipping is addressed.
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IP Header Compression Enhancement—PPPoATM and PPPoFR Support
In Cisco IOS Release 12.2(2)T, IP header compression (TCP and IP/UDP/RTP) is now supported on PPP-over-ATM interfaces and PPP-over-Frame Relay interfaces.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt6/qcflem.htm
IP Multicast MIB Enhancements
This feature enhances the IP multicast routing protocol in Cisco IOS software by adding MIB variables to query the number of (S, G) and (*, G) entries. It also adds support for high-speed interface counters.
IP-FORWARDING-TABLE-MIB
This release introduces support for the new IP-FORWARD-MIB (IP Forwarding Table MIB). The current version of the IP Forwarding Table MIB is defined in RFC 2096. (RFC 2096 replaces RFC 1354.) The Cisco implementation of this MIB does not support the ipCiderRouteNextHopAS object. Additionally, all entries for the ipCidrRouteTos object (the IP Type-of-Service field) remain set to zero, which indicates a default TOS policy.
For details, see the IP-FORWARD-MIB.my file.
IPMROUTE-STD-MIB
This feature introduces support for the IPMROUTE-STD-MIB in Cisco IOS software. IPMROUTE-STD-MIB, as defined in RFC 2932, is a module for management of IP multicast routing in a manner independent of the specific multicast routing protocol in use. Support for this MIB replaces the draft form of the IPMROUTE-MIB.
The IPMROUTE-STD-MIB supports all the MIB objects of the IPMROUTE-MIB and in addition supports the following four new MIB objects:
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The ipMRouteScopeNameTable MIB object is not supported because it is not relevant to multicast routers.
IPSec and 3DES Feature Set for Cisco 820 Series Routers
The Internet Protocol Security (IPSec) feature is available on the Cisco 820 series routers. IPSec is a framework of open standards developed by the Internet Engineering Task Force (IETF) that provides security for transmission of sensitive information over unprotected networks such as the Internet. It acts at the network level and implements the following standards:
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IPSec services are similar to those provided by Cisco Encryption Technology (CET), a proprietary security solution introduced in Cisco IOS Release 11.2. (The IPSec standard was not yet available at Release 11.2.) It provides network data encryption at the IP packet level and implements the following standards:
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IPSec provides a more robust security solution and is standards-based. IPSec also provides data authentication and antireplay services in addition to data confidentiality services, and CET provides only data-confidentiality services.
The following component technologies are implemented for IPSec:
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IPSec—SNMP Support
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121e/121e4/dtipmib.htm
IPSec VPN High Availability Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122y/122ye/122
9ye/12yipsec.htmIP to ATM Class of Service Mapping for SVC Bundles
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftsvbund.htm
IRR Triggers for GKTMP
The IRR Triggers for GKTMP feature allows a Cisco Gateway to send an information request response (IRR) to the Gatekeeper (GK) containing the details of a particular call after a successful connect. The feature also allows a back end application to set triggers for this message and the GK to deliver the IRR information to the application.
ISDN and V.120 Support for NextPort DSPs
The ISDN and V.120 Support For NextPort DSPs feature provides full coverage for digital calls and performance enhancement for V.120 calls. The feature permits terminating synchronous ISDN and V.120 sessions without customer intervention. This feature allows the Cisco AS5350 and Cisco AS5400 to terminate more than 256 ISDN sessions per channelized T3 (CT3) controller by adding ISDN capacity. This feature is mandatory for wholesale dial installations in which ISDN is being used. This feature permits V.120 calls to operate on the NextPort digital signal processor (DSP) instead of on the CT3 controller to reduce activity on the CPU and to increase the V.120 call capability. Support for these enhancements is automatic, and no configuration steps are required.
ISDN Progress Indicator Support for SIP Using 183 Session Progress
The ISDN Progress Indicator Support for SIP Using 183 Session Progress feature adds the SIP 183 Session Progress and Ringing messages to better map to the ISDN/CAS messages.
ISIS: Allows BGP to Control the Configuration of the Overload Bit
The Intermediate-System to Intermediate-System (IS-IS) protocol defines a special bit in each link-state packet (LSP) called the overload-bit. IS-IS uses the overload bit to "tell" other routers to ignore this router in their shortest path first (SPF) calculations. This function prevents transit traffic from passing through the router before the routing table has converged, and transit traffic is not lost.
IVR: Enhanced Multilanguage Support
This feature releases the infrastructure to support Tool Command Language (TCL)-based script interpreters, which allow you to easily add new languages to your router or access server. You can add a new language by creating a TCL script that interprets prompts into a sequence of audio files or silences. The underlying Cisco IOS dynamic prompting code interfaces with the TCL script to translate the message into a sequence of URLs that point to audio files. Then, the Cisco IOS software plays the sequence of audio files as a dynamic prompt. New TCL-script language interpreters operate simultaneously with the current built-in languages: Spanish, Chinese/Mandarin, and English. Adversely, new TCL-script language interpreters can replace one or more of the built-in languages by overwriting the built-in language functionality.
Note
Note
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftmultil.htm
L2TP Large-Scale Dial-Out
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftl2lsdo.htm
L2TP Security
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftl2tsec.htm
Large-Scale Dial-Out (LSDO) VRF Aware
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftlsdvpn.htm
Leased and Switched BRI Interfaces for ETSI NET3
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftlswbri.htm
Location Confirmation Enhancements for Alternate Endpoints
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_lcfep.htm
Low Latency Queueing
Low Latency Queueing is now supported on Cisco 820 routers. The Low Latency Queueing feature brings strict priority queueing to Class-Based Weighted Fair Queueing (CBWFQ). Strict priority queueing allows delay-sensitive data such as voice to be dequeued and sent first (before packets in other queues are dequeued), giving delay-sensitive data preferential treatment over other traffic. Information about LLQ is provided in the Quality of Service Solutions Configuration Guide. For overview information, see the following chapter:
For configuration instructions, see the following chapter:
/en/US/docs/ios/12_2/qos/configuration/guide/qcfwfq.html#xtocid2836441
Low Latency Queueing with Priority Percentage Support
This feature allows you to configure bandwidth as a percentage within low latency queueing (LLQ). Specifically, you can designate a percentage of the bandwidth to be allocated to an entity (such as a physical interface, a shaped ATM permanent virtual circuit (PVC), or a shaped Frame Relay PVC) to which a policy map is attached. Traffic associated with the policy map will then be given priority treatment. This feature also allows you to specify the percentage of bandwidth to be allocated to nonpriority traffic classes.
This feature modifies two existing commands—bandwidth and priority. This feature adds a new keyword to the bandwidth command—remaining percent. The feature also changes the functionality of the existing percent keyword. These changes result in the following commands for bandwidth: bandwidth percent and bandwidth remaining percent. The bandwidth percent command configures bandwidth as an absolute percentage of the total bandwidth on the interface. The bandwidth remaining percent command allows you to allocate bandwidth as a relative percentage of the total bandwidth available on the interface. This command allows you to specify the relative percentage of the bandwidth to be allocated to the classes of traffic.
This feature also adds the percent keyword to the priority command. The priority percent command indicates that the bandwidth will be allocated as a percentage of the total bandwidth of the interface. You can then specify the percentage (that is, a number from 1 to 100) to be allocated by using the percentage argument with the priority percent command.
Unlike the bandwidth command, the priority command provides a strict priority to the traffic class, which ensures low latency to high priority traffic classes. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftllqpct.htm.
Note
LZ Software with Hardware Encryption
Before the LZ Software with Hardware Encryption feature was introduced, compression was not supported with the VPN encryption hardware advanced integration module (AIM) and network module (NM); that is, a user had to remove the VPN module from the router and run software encryption with software compression. This feature enables all VPN modules to support LZ compression in software when the VPN module is in Cisco 2600 and Cisco 3600 series routers, thereby, allowing users to configure and compress 2 128Kb/sec streams.
MD5 File Validation
The MD5 File Validation feature allows you to check the integrity of a Cisco IOS software image by comparing its MD5 checksum value against a known MD5 checksum value for the image. MD5 values are now made available on Cisco.com for all Cisco IOS software images for comparison against local system image values.
To perform the MD5 integrity check, execute the verify command using the new "/md5" keyword. For example, executing the verify flash:c7200-is-mz.122-2.T.bin /md5 command will calculate and display the MD5 value for the software image. Compare this value with the value available on Cisco.com for this image.
Alternatively, you can get the MD5 value from Cisco.com first, then specify this value in the command syntax. For example, executing the verify flash:c7200-is-mz.122-2.T.bin /MD5 8b5f3062c4caeccae72571440e962233 command will display a message verifying that the MD5 values match or that there is a mismatch.
A mismatch in MD5 values means that either the image is corrupt or the wrong MD5 value was entered.
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_md5v.htm
Media Forking
Media Forking allows the gateway to create multiple streams (or forks) of media associated with a single call and send those streams to multiple destinations, which may include voice portals with speech recognition. Only the original media stream is bidirectional. Additional branches are unidirectional (transmit only), so additional participants are able to hear only the originating caller and not each other. Each media stream is independently configured and can be a variation of voice only, named telephone event (NTE) only, or voice plus NTE media stream.The content of the media stream is specified in the signaling when the media stream is established.
Although there can be more than one media destination, there is only one signaling destination, which might be the voice portal. The call leg that was originally signaled (for instance, from the originating gateway to the voice portal) is maintained for the life of the session. The media destinations are independent of the signaling destination, so media forks can be added and removed dynamically. The local telephony call leg must be maintained, and up to four media forks, including the destination of the original call, are supported. Fax calls are not supported on any media streams (including the original) when multiple forks are requested. No media forks can be created for a fax call session.
Media Gateway Control Protocol-Based Fax (T.38) and Dual Tone Multifrequency (IETF RFC 2833) Relay
The MGCP-Based Fax (T.38) and DTMF (IETF RFC 2833) Relay feature adds support for fax relay and DTMF relay with MGCP. This feature provides two modes of implementation for each component: gateway (GW)-controlled mode and call agent (CA)-controlled mode. In GW-controlled mode, GWs negotiate DTMF and fax relay transmission by exchanging capability information in Session Description Protocol (SDP) messages. That transmission is transparent to the CA. GW-controlled mode allows use of the MGCP-Based Fax (T.38) and DTMF (IETF RFC 2833) Relay feature without upgrading the CA software to support the feature. In CA-controlled mode, CAs use MGCP messaging to instruct GWs to process fax and DTMF traffic. For MGCP T.38 Fax Relay, the CAs can also instruct GWs to revert to GW-controlled mode if the CA is unable to handle the fax control messaging traffic; for example, in overloaded or congested networks.
See the following document for additional information:
Note
Note
MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles
The MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles feature implements the following Media Gateway Control Protocol (MGCP) protocols on the supported Cisco media gateways:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_24mg1.htm
MGCP Based Fax (T.38) and DTMF Relay
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ftmgcpfx.htm
MGCP Basic CLASS and Operator Services
The MGCP BCOS are a set of calling features, sometimes called "custom calling" features, that use MGCP to transmit voice, video, and data over the IP network. These features are usually found in circuit-based networks. MGCP BCOS brings them to the Cisco IOS gateways on packet-based networks.
The MGCP BCOS software is built on the MGCP CAS PBX and AAL2 software package, and supports MGCP 0.1 and the earlier protocol versions Simple Gateway Control Protocol (SGCP) 1.1 and 1.5.
The following MGCP BCOS features are available on Residential Gateways (RGWs) and Business Gateways (BGWs):
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The following two features can be run as RGW or trunking gateway (TGW) features:
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This feature is supported in SGCP mode on Cisco 3660 and Cisco AS5300 platforms and in MGCP mode on all five supported platforms.
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This feature is supported on the Cisco 3660 and Cisco AS5300 TGW platforms and on the Cisco MC3810 series, and Cisco 2600 RGW platforms. This feature cannot be supported on the G.728 and G.723 codecs.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftmgcpgr.htm
MGCP CAS PBX and AAL2 PVC with Basic CLASS and Operator Services
The MGCP CAS PBX and AAL2 PVC software package is a solutions-oriented program that focuses on several customer gateway scenarios. These scenarios require features that address residential, business, and trunking gateway needs on a variety of hardware platforms:
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To answer these needs, the MGCP CAS PBX and AAL2 PVC feature combines and expands existing feature sets on the merged Simple Gateway Control Protocol (SGCP)/MGCP software platform as follows:
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See the following documents for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftmgcptk.htm
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftmgcpgr.htm
MGCP CAS PBX and PRI Signaling Backhaul on Cisco 7200 Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_mg7xx.htm
MGCP Generic Configuration Support for Call Manager (IP-PBX)
The MGCP Generic Configuration Support for Call Manager (IP-PBX) feature provides generic configuration support for Cisco IOS Media Gateway Control Protocol (MGCP) gateways with Call Manager. The gateways receive voice configuration from Call Manager by way of an eXtensible Markup Language (XML) file that is downloaded from a TFTP server.
MGCP Line Package Enhancements for Loop Current Feed Open (LCFO)
The MGCP Line Package Enhancements for Loop Current Feed Open (LFCO) feature enhances Media Gateway Control Protocol (MGCP) residential gateway capabilities to support the generation of the LFCO signal at the request of the call agent. LFCO is a new signal in the line package. This enhancement supports call flows that involve answering machines or other automated devices that act as the terminating party and will facilitate the notification of the originating party's on-hook to such devices. There is no explicit configuration required to enable this feature.
MGCP PRI Backhaul and T1-CAS Support for Call Manager (IP-PBX)
ISDN PRI backhaul provides a method for transporting complete IP telephony signaling information from an ISDN PRI interface of an MGCP voice gateway to Cisco CallManager through a highly reliable TCP connection.
This feature works by terminating all the ISDN PRI Layer 2 (Q.921) signaling functions in the Cisco IOS software on the MGCP voice gateway while, at the same time, packaging all the ISDN PRI Layer 3 (Q.931) signaling information into packets for transmission to the Cisco CallManager through an IP tunnel over a highly reliable TCP connection. This methodology ensures the integrity of the Q.931 signaling information being passed through the network for managing IP telephony devices.
A rich set of user-side and network-side ISDN PRI calling functions is supported by the ISDN PRI backhaul feature. A single TCP connection is used by the gateway to backhaul all the ISDN D channels to Cisco CallManager. The "SAP/Channel ID" parameter in the header of each message identifies individual D channels. In addition to carrying the backhaul traffic, the inherent TCP keepalive mechanism is also used to determine MGCP voice gateway connectivity to an available call agent.
The MGCP voice gateway also establishes a TCP link to the backup (secondary) Cisco CallManager server. In the event of Cisco CallManager switchover, the ISDN PRI backhaul functions are assumed by the secondary Cisco CallManager server. During this switchover, all active ISDN PRI calls are preserved, and the affected MGCP gateway is registered with the new Cisco CallManager server through a Restart-in-Progress (RSIP) message to ensure continued gateway operation.
T1 CAS is supported in non-backhaul fashion and supported CAS signaling types on the Cisco CallManager are E&M, wink-start, and E&M delay-dial. E1 CAS is not supported.
MGCP Voice on Cisco AS5850 Universal Gateway
Although the documents listed below were not written specifically for the Cisco AS5850, they still apply to the Cisco AS5850. MGCP Voice on Cisco AS5850 Universal Gateway include the following features:
FGD-OS 911 Calls
The 911 feature can be run as residential gateway (RGW) or trunking gateway (TGW) feature.
Interactive Voice Response Version 2.0 on Cisco VoIP Gateway
See the following document for information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t3/dt_skyn.htm
Note
Media Gateway Control Protocol Residential Gateway Support
See the following document for information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t3/mgcp1213.htm
MGCP VoIP Call Admission Control
See the following document for information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_04mac.htm
Network Access Server Package for Media Gateway Control Protocol
See the following document for information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ft_mgnas.htm
PRI/Q.931 Signaling Backhaul for Call Agent Applications
See the following document for information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/5300/sw_conf/ios_121/0144cors.htm
MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles
See the following document for information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_24mg1.htm
Further Documentation
See the following document for further information about the MGCP Voice on Cisco AS5850 Universal Gateway feature:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/pull_daz.htm
MGCP VoIP Call Admission Control
The MGCP VoIP Call Admission Control (CAC) feature determines if calls can be accepted on the IP network on the basis of available network resources. Before this release, Media Gateway Control Protocol (MGCP) Voice over IP (VoIP) calls were established regardless of the available resources on the gateway or network. The gateway had no mechanism for gracefully refusing calls if resources were not available to process the call. New calls would fail with unexpected behavior and in-progress calls would experience quality-related problems.
The MGCP VoIP Call Admission Control feature provides three CAC mechanisms to address the need for improved quality and predictable gateway behavior. The first mechanism is local/system CAC, which provides the ability to gracefully refuse calls on the basis of the availability of local gateway call processing resources such as CPU utilization and memory. The second CAC mechanism provides synchronization with Resource Reservation Protocol (RSVP) and reports the reservation request to the call agent. The third mechanism provides network congestion detection to gracefully refuse calls on the basis of a measured level of congestion.
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_04mac.htm
MGCP VoIP Signaling for 1750 Series
The MGCP CAS PBX and AAL2 PVC features extend the earlier Simple Gateway Control Protocol (SGCP) Channel Associated Signaling (CAS) and AAL2 support onto the merged SGCP/MGCP software base to enable various service provider solutions. see the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121x/121xm/121xm_5/ftmgcpba.htm
Mobile IP —IPSec for Home Agent to Foreign Agent Tunnel
The Mobile IP—IPSec for Home Agent to Foreign Agent Tunnel enables the use of IPSec on the home agent to foreign agent tunnel.
Crypto map configuration must be applied to both the tunnel and physical interfaces. For details see the "Configuring Cisco Encryption Technology" chapter in the Release 12.2 Cisco IOS Security Configuration Guide.
Mobile IP MIB Support for SNMP
The Mobile IP MIB Support for SNMP feature adds a MIB module which expands network monitoring capabilities of Foreign Agent (FA) and Home Agent (HA) Mobile IP Entities. Mobile IP management using SNMP is defined in two MIBs: the RFC2006-MIB and the CISCO-MOBILE-IP-MIB. The Cisco Mobile IP MIB is a Cisco enterprise-specific extension to IETF RFC 2006 MIB module which allows you to monitor the total number of HA Mobile bindings and the total number of FA visitor bindings. This release also adds support for RFC 2006 Set operations and a SNMP notification. Set operations (performed from a Network Management System) are supported for starting and stopping the mobile IP service, configuring security associations, modifying advertisement parameters, and configuring "care-of addresses" for foreign agents. An SNMP notification (trap or inform) for security violations can be enabled on supported routing devices using the snmp-server enable traps ipmobile and snmp-server host global configuration CLI commands. As this feature affects security, use of SNMPv3 is strongly recommended.
For further details, see the Mobile IP MIB Support for SNMP Feature Guide at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft1mip.htm
Mobile IP—Fastswitching Support on Foreign Agent
The Mobile IP—Fastswitching Support on Foreign Agent feature enables packets to be fast switched from the foreign agent both in the direction of the mobile node and through the reverse tunnel. In the direction of the mobile node, packets will be properly fast-switched for global IP addresses. However, this feature does not support fast-switching to mobile nodes using private home addresses.
Fast-switching packets through the reverse tunnel is achieved by intercepting packets before cache lookup and dynamically switching them through the correct tunnel interface.
Mobile IP—Generic NAI Support and Home Address Allocation
The Mobile IP—Generic NAI Support and Home Address Allocation feature allows a mobile node to be identified by using a network access identifier (NAI) instead of an IP address (home address). The NAI is a character string similar to an email address in that it is formatted as either user or user@realm but it need not be a valid e-mail address.
The original purpose of the NAI was to support roaming between dialup ISPs. With the NAI, each ISP need not have all the accounts for all of its roaming partners in a single RADIUS database. RADIUS servers can proxy requests to remote servers for each realm.
These services are also valuable for mobile nodes using Mobile IP when the nodes are attempting to connect to foreign domains with AAA servers. The mobile node can identify itself by including the NAI along with the Mobile IP registration request.
Additionally, this feature allows you to configure the home agent to allocate addresses to mobile nodes either statically (including multiple static addresses per NAI flow) or dynamically. Home address allocation can be from address pools configured locally, through either DHCP server access, or from the AAA server.
See the following document for more information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftnaiadd.htm
Mobile IP—MIB Support for NAI and HA Redundancy
The CISCO-MOBILE-IP-MIB is enhanced to add support for following features:
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The following tables are defined in the MIB to support NAI based mobile nodes (MN):
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These tables are the same as the corresponding tables in the RFC2006-MIB (MIP MIB) in terms of the information they provide, but indices are changed so that entries for mobile nodes which are not identified by the IP address will also be included in the table.
The `cmiHaRegMobilityBindingTable' is augmented from `haMobilityBindingTable' of the RFC2006-MIB (MIP MIB) to provide the NAI information.
2.
Scalar objects have been added to MIB to monitor the message exchanges between peer home agents. These objects are under the `cmiHaRedun' subtree of the MIB.
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There are scalar objects under `cmiHaReg' subtree which gives statistics about the registration processing rate at home agent. Distinction is made between registration requests authenticated locally and those authenticated at the AAA server. There are scalar objects under the 'cmiMaReg' subtree which give statistics about the rate at which registration requests are received at the mobility agent (HA or FA).
Mobile IP—Private Addressing Support
The Mobile IP—Private Addressing Support feature allows the use of private IP addresses for mobile nodes. Enhancements have been made to the foreign agent to allow it to distinguish between mobile nodes using the same private home address, but with different home agents.
When a mobile node successfully registers with a foreign agent, a tunnel is set up between the foreign agent and the home agent. When a packet is received by the foreign agent for the mobile node, the foreign agent will identify which mobile node to route the packet to based on the address of the mobile node, as well as the home agent from which the packet came.
Mobile Networks
The Cisco Mobile Networks feature enables a Mobile Router and its subnets to be mobile and maintain all IP connectivity, transparent to the IP hosts connecting through this Mobile Router.
Mobile IP, as defined in standard RFC 2002, provides the architecture that enables the Mobile Router to connect back to its home network. Mobile IP allows a device to roam while appearing to be at its home network. Such a device is called a mobile node. A mobile node is a node, for example, a personal digital assistant, a laptop computer, or a data-ready cellular phone, that can change its point of attachment from one network or subnet to another. This mobile node can travel from link to link and maintain ongoing communications while using the same IP address.
The Mobile Router functions similarly to the mobile node with one key difference—the Mobile Router allows entire networks to roam. For example, a plane with a Mobile Router can fly around the world while passengers stay connected to the Internet. This communication is accomplished by Mobile IP aware routers tunneling packets, which are destined to hosts on the mobile networks, to the location where the Mobile Router is visiting. The Mobile Router then forwards the packets to the destination device.
These devices can be mobile nodes running Mobile IP client software or nodes without the software. The Mobile Router eliminates the need for a Mobile IP client. In fact, the nodes on the mobile network are not aware of any IP mobility at all. The Mobile Router "hides" the IP roaming from the local IP nodes so that the local nodes appear to be directly attached to the home network.
The Cisco Mobile Networks feature is a static network implementation that supports stub routers only. The Mobile Router avoids convergence problems by statically defining which networks it can address. The Mobile Router can do the following:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftmbrout.htm
Mobile Networks MIB Support
The Cisco Mobile Networks MIB Support feature implements mobile node MIB groups for the monitoring and management of Cisco Mobile Network activity. Data from managed objects is returned through the use of the "show" commands described in the documentation for the "Cisco Mobile Networks" 12.2(4)T feature, or can be retrieved from a Network Management System using SNMP.
The Cisco Mobile Networks MIB Support feature implements the following mobile node (mn) groups in the Mobile IP MIB (RFC2006-MIB): the mnSystem group, the mnDiscovery group, and the mnRegistrationGroup.
For further details, see the RFC2006-MIB.my file, available through Cisco.com at http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en, and RFC 2206, "The Definitions of Managed Objects for IP Mobility Support using SMIv2."
Modem Script and System Script Support in Large-Scale Dial-Out
Modem connection and system login chat scripts are often used when asynchronous dial-on-demand routing (DDR) is configured. Currently, however, the large-scale dial-out network architecture does not allow chat scripts for a particular session to be passed through the network. Cisco IOS Release 12.2(2)T allows modem and system chat scripts to pass through large-scale dial-out networks by allocating two new authentication, authorization, and accounting (AAA) attributes for outbound service.
The AAA attributes define specific AAA elements in a user profile. Large-scale dial-out supports Cisco attribute-value (AV) pairs and TACACS+ attributes. The Modem Script and System Script Support in Large-Scale Dial-Out feature provides two new outbound service attributes for passing chat scripts: modem-script and system-script. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftlschat.htm
MPLS Diff-Serv-aware Traffic Engineering (DS-TE) over ATM
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_ds_te.htm
MPLS Label Distribution Protocol (LDP)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_ldp7t.htm
MPLS Label Distribution Protocol (LDP) MIB
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ldpmib2t.htm
MPLS Label Switch Controller and Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftmpls.htm
MPLS Label Switching Router MIB
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/lsrmibt.htm
MPLS Over ATM: Virtual Circuit (VC) Merge
VC merge maps several incoming labels to one single outgoing label. Cells from different virtual channel identifiers (VCIs) that travel to the same destination are transmitted to the same outgoing VC using multipoint-to-point connections.
VC merge allows the switch to transmit cells that come from different VCIs over the same outgoing VCI to the same destination. In other words, VC merge queues ATM Adaptation Layer 5 (AAL5) frames in input buffers until the switch receives the last frame. Then the switch transmits the cells from that AAL5 frame before it sends any cells from other frames. VC merge requires the switch to provide buffering, but no more buffering than is required in IP networks. VC merge slightly delays the transfer of frames; however, VC merge is for IP traffic and not for traffic that requires speed. IP traffic tolerates delays better than other traffic on the ATM network.
MPLS QoS Multi-VC Mode for PA-A3
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/cos1221t.htm
MPLS Traffic Engineering (TE) MIB
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/temib28t.htm
MPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for TE Tunnels
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftbwadjm.htm
MPLS Traffic Engineering (TE)—IP Explicit Address Exclusion
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftaddexc.htm
MPLS VPN Carrier Supporting Carrier
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftcsc8.htm
MPLS VPN ID
Using Multiprotocol Label Switching (MPLS) VPN ID you can identify virtual private networks (VPNs) by a VPN identification number, as described in RFC 2685. This implementation of the MPLS VPN ID feature is used for identifying a VPN. The MPLS VPN ID feature is not used to control the distribution of routing information or to associate IP addresses with MPLS VPN ID numbers in routing updates.
Multiple VPNs can be configured in a router. You can use a VPN name (a unique ASCII string) to reference a specific VPN configured in the router. Alternately, you can use a VPN ID to identify a particular VPN in the router. The VPN ID follows a standard specification (RFC 2685). To ensure that the VPN has a consistent VPN ID, assign the same VPN ID to all the routers in the service provider network that services that VPN.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftvpnid.htm
Multicast Music on Hold Support for Call Manager (IP-PBX)
The Multicast Music on Hold Support for Call Manager (IP-PBX) feature provides the functionality to stream music from a Multicast Music on Hold (MOH) server to the voice interfaces of on-net and off-net callers that have been placed on hold.
This integrated multicast capability of Cisco CallManager 3.1 is implemented through the H.323 signaling plane in Cisco CallManager.
In an MOH environment, whenever caller A places caller B on hold, Cisco CallManager requests the MOH server to stream RTP packets to the "on-hold" interface through the preconfigured multicast address. In this way, RTP packets can be relayed to appropriately configured voice interfaces in a VoIP network that have been placed on hold.
Multiple MOH servers can be present in the same network, but each server must have a different Class D IP address, and the address must be preconfigured in Cisco CallManager and the Cisco IOS MGCP voice gateways.
The MOH feature enables you to subscribe to a music streaming service when using a Cisco IOS MGCP voice gateway. By means of a preconfigured multicast address on a gateway, the gateway can "listen for" Real-Time Transport Protocol (RTP) packets that are broadcast from a default router in the network and can relay the packets to designated voice interfaces in the network.
RTP is the Internet-standard protocol for transporting real-time data across a network, including audio and video information. Thus, RTP is well suited for media on demand and interactive services, such as IP telephony.
The default router in the network for handling multicast traffic must have the following enabled:
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When you configure a multicast address on a gateway, the gateway sends an Internet Gateway Management Protocol (IGMP) "join" message to the default router, indicating to the default router that the gateway is to receive RTP multicast packets.
Multilink Frame Relay (FRF.16)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_mfr.htm
Multiple RSA Keypair Support
The Multiple RSA Keypair Support feature allows the Cisco IOS software to maintain a distinct key pair for each certification authority (CA) with which it is dealing. Thus, the Cisco IOS software can match policy requirements for each CA without compromising the requirements specified by the other CAs, such as key length, key lifetime, and general-purpose versus special-usage keys.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftmltkey.htm
Multiprotocol BGP (MP-BGP) Support for CLNS
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/fm_bgpmc.htm
Multiservice Interchange (MIX) for Cisco 2600 and 3600 Series Modular Access Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_24mix.htm
NAT—Ability to Use Route Maps with Static Translations
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftnatrt.htm
NAT MIB (Read-Only)
This feature introduces support for the Network Address Translation (NAT) MIB. NAT provides tables for translating internal network addresses external network addresses. The NAT MIB provides objects for the monitoring and management of NAT bindings and session using SNMP. In this release, access to the MIB is limited to the read-only level. No new or modified Cisco IOS commands are associated with this MIB.
For details on the management options provided by the MIB, see the CISCO-IETF-NAT-MIB.my file available in the "SNMP v2 MIBs" section of the Cisco.com MIB page at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
NAT Protocol Translation
Network Address Translation - Protocol Translation (NAT PT) is an IPv6 translation mechanism allowing IPv6-only devices to communicate with IPv4-only devices, and vice versa. NAT PT was designed using RFC 2766 as a migration tool to help customers transition their IPv4 networks to IPv6 networks. Using existing IPv4 NAT capability and adding a protocol translator allows NAT PT to provide direct communication between hosts speaking a different network protocol.
NAT—Static Mapping Support with HSRP for High Availability
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftnthsrp.htm
NAT Support for SIP
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftnatsip.htm
NAT Support of H.323 RAS
Cisco IOS NAT supports all H.225 and H.245 message types, including those sent in the RAS protocol. RAS provides a number of messages that are used by software clients and Voice over IP (VoIP) devices to register their location, request assistance in call setup, and control bandwidth. The RAS messages are directed toward an H.323 gatekeeper.
Some RAS messages include IP addressing information in the payload, typically meant to register a user with the gatekeeper or learn about another user already registered. If these messages are not known to NAT, they cannot be translated to an IP address that will be visible to the public.
Previously, NAT did not support H.323 v2 RAS messages. With this enhancement, embedded IP addresses can be inspected for potential address translation.
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftnatras.htm
NAT-Support of H.323 v2 Call Signaling
Cisco IOS NAT supports all H.225 and H.245 message types, including FastConnect and Alerting, as part of the H.323 v2 specification.
Previously, NAT only supported H.323 version 1 and that was specific only to the Microsoft NetMeeting application. With this enhancement, any product that makes use of these message types will be able to pass through a Cisco IOS NAT configuration without any static configuration.
This feature was previously released in Cisco IOS Release 12.1(5)T on the Cisco Catalyst 2900, Cisco Catalyst 2900XL, Cisco Catalyst 4000 series, Cisco Catalyst 5000 family switches with an installed Route Switch Module, Cisco Catalyst 6000 series, Cisco Catalyst 8500 series, Cisco LightStream 1010 series, Cisco 800 series, Cisco 1000 series, Cisco 1400 series, Cisco 1600 series, Cisco 1700 series, Cisco 2500 series, Cisco 2600 series, Cisco 3600 series, Cisco 4000 series, Cisco AS5300, Cisco AS5400, Cisco AS5800, Cisco 6400 series, Cisco 7000 series, Cisco 8500 series, Cisco 12000 series, Cisco MC3810, Cisco uBR900, and Cisco uBR7200 platforms. This release is porting the feature into the Cisco IAD2420 platform.
NAT—Translation of External IP Addresses Only
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftnatxip.htm
NetFlow Multiple Export Destinations
The NetFlow Multiple Export Destinations feature enables configuration of multiple destinations of the NetFlow data. With this feature enabled, two identical streams of NetFlow data are sent to the destination host. Currently, the maximum number of export destinations allowed is two.
The NetFlow Multiple Export Destinations feature improves the chances of receiving complete NetFlow data by providing redundant streams of data. Because the same export data is sent to more than one NetFlow collector, fewer packets will be lost. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/dtnfdest.htm
NetFlow ToS-Based Router Aggregation
The NetFlow ToS-Based Router Aggregation feature provides the ability to enable limited router-based type of service (ToS) aggregation of NetFlow Export data, which results in summarized NetFlow Export data to be exported to a collection device. The result is lower bandwidth requirements for NetFlow Export data and reduced platform requirements for NetFlow data collection devices.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s15/dtnfltos.htm
NetWare Link Services Protocol (NLSP)
The NetWare Link Services Protocol (NLSP) will no longer be offered after Cisco IOS Release 12.2(13)T. NLSP commands will not appear in future releases of the Cisco IOS software documentation set.
Network Access Server (NAS) Package for MGCP
The Network Access Server (NAS) Package for MGCP feature adds support for the Media Gateway Control Protocol (MGCP) NAS package on the Cisco AS5350, Cisco AS5400, and Cisco AS5850. With this implementation, data calls can be terminated on a trunking media gateway that is serving as a NAS. Trunks on the NAS are controlled and managed by a call agent that supports MGCP for both voice and data calls. The call agent must support the MGCP NAS package.
These capabilities are enabled by the universal port functionality of the Cisco AS5350, Cisco AS5400, and Cisco AS5850, which allows these platforms to operate simultaneously as network access servers and voice gateways to deliver universal services on any port at any time. These universal services include dial access, real-time voice and fax, wireless data access, and unified communications.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ft_mgnas.htm
Network-Based Application Recognition and Distributed Network-Based Application Recognition
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/dtnbarad.htm
No Service Password-Recovery
The No Service Password-Recovery feature disables password-recovery capability for better console security.
Nonblocking Gatekeeper AAA Interface
The Nonblocking Gatekeeper AAA Interface feature enables Cisco gatekeepers to perform authentication, authorization, and accounting (AAA) through the gatekeeper interface at much higher call rates.
There are no new or modified commands.
Nonstop Forwarding Enhanced FIB Refresh
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftfibeps.htm
Offload Server Accounting Enhancement
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftoffact.htm
Optimized PPP Negotiation
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftcphneg.htm
OSPF ABR Type 3 LSA Filtering
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftabrt3f.htm
OSPF Sham-Link Support for MPLS VPN
A sham link is a logical path within an Open Shortest Path First (OSPF) area; it represents an unnumbered point-to-point connection between two provider edge (PE) devices. All routers within the area see the link and use it during the shortest path first (SPF) computation.
On PE routers the VPN Route Forwarding (VRF) routing table is populated by OSPF routes over the sham link. The sham link gives users the capability of specifying which path will be used for traffic.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ospfshmk.htm
OSPF Stub Router Advertisement
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftospfau.htm
OSPF Update Packet-Pacing Configurable Timers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftospfct.htm
Particle Drivers
The Particle Drivers feature is a collection of performance and reliability improvements for the Cisco AS5350, Cisco AS5400, and Cisco AS5400HPX universal gateways. It includes particles-based packet drivers for improved performance. These particle drivers optimize Cisco IOS fast switching code and significantly improve the way Cisco IOS uses processor cache memory. Data packets for some protocols, such as MLPPP, IP Multicast, and cRTP, are fast switched with particle drivers. Cisco IOS CEF switching paths are highly optimized with particle drivers.
PIM MIB Extension for IP Multicast
Protocol Independent Multicast (PIM) is an IP Multicast routing protocol used for routing multicast data packets to multicast groups. RFC 2934 defines the Protocol Independent Multicast for IPv4 MIB, which describes managed objects that enable users to remotely monitor and configure PIM using Simple Network Management Protocol (SNMP).
The PIM MIB Extension for IP Multicast feature introduces support in Cisco IOS software for the CISCO-PIM-MIB, which is an extension of RFC 2934 and an enhancement to the existing Cisco implementation of the PIM MIB. This feature introduces the following new classes of PIM notifications:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftpimmib.htm
PIM Multicast Scalability
The PIM Multicast Scalability feature enhances the Protocol Independent Multicast (PIM) protocol in Cisco IOS software by adding a new level of scalability. With this feature, edge devices can have a large number of multicast groups and users without increasing the CPU utilization of the router.
Plain NFAS Support on NM-HDV
The current Non-Facility Associated Signaling (NFAS) support on the High-Density Voice network modules (NM-HDV) is joined with the Redundant Link Manager/Signaling System 7 (RLM/SS7). When a user configures an ISDN PRI NFAS group via the Cisco command line interface (CLI), all channels within the PRI are treated as B channels. A D channel is not created and, thus no signaling will be passed to the ISDN stack.
This feature modifies the existing implementation of NFAS/RLM on NM-HDV to activate the generic NFAS feature on Cisco 2600 and 3600 routers and to allow the coexistence of plain NFAS and NFAS/RLM/SS7 on the Cisco 3660 router.
Policer Enhancement — Multiple Actions
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftpolenh.htm
PPP over Ethernet Client
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftpppoec.htm
PPPoA/PPPoE Autosense for ATM PVCs
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftp_auto.htm
PPPoE Connection Throttling
This feature will throttle the PPP over Ethernet (PPPoE) connection requests to prevent any denial of service attacks. It will implement per-mac/per-vc initiated session rate throttling in the PPPoE server to limit the session initiate count during a specific period of time.
PPPoE MTU Adjustment
The syntax of the ip adjust-mss command has changed to the following:
ip tcp adjust-mss mss
where the value of the mss argument must be 1452 or less to fix the Point-to-Point Protocol over Ethernet (PPPoE) maximum transmission unit (MTU) problem.
PPPoE over Gigabit Ethernet
The PPPoE over Gigabit Ethernet feature enhances PPP over Ethernet (PPPoE) functionality by adding support for PPPoE and PPPoE over IEEE 802.1Q VLANs on Gigabit Ethernet interfaces. The PPPoE over Gigabit Ethernet feature is supported on Cisco 7200 series routers with Gigabit Ethernet line cards.
PPPoE Session-Count MIB
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftpscmib.htm
PPPoE Session Limit
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftppoesl.htm
Preauthentication with ISDN PRI and Channel-Associated Signaling Enhancements
Preauthentication allows a Cisco network access server (NAS) to decide—on the basis of the Dialed Number Identification Service (DNIS) number—whether to answer an incoming call. When an incoming call arrives from the public network switch but before it is answered, the NAS sends the DNIS number to a RADIUS server for authorization.
The Preauthentication with ISDN PRI and Channel-Associated Signaling Enhancements feature provides additional support for preauthentication, which was introduced in a previous Cisco IOS release. For more information about preauthentication, see the Cisco IOS Release 12.1(3)T feature module titled Preauthentication with ISDN PRI and Channel-Associated Signaling.
This feature supports the use of attribute 44 by the RADIUS server application, which allows user authentication on the basis of the Calling Line Identification (CLID) number in the same transaction. For more information about attribute 44 and how it works with preauthentication, see the Cisco IOS Release 12.0(7)T feature module titled RADIUS Attribute 44 (Accounting Session ID) in Access Requests.
This feature also supports the use of new RADIUS attributes. These RADIUS attributes are configured in the RADIUS preauthentication profiles to specify preauthentication behavior. They may also be used, for instance, to specify whether subsequent authentication should occur and, if so, what authentication method should be used. see the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/dtdt1.htm
Note
PRI Backhaul Using the Stream Control Transmission Protocol and the ISDN Q.921 User Adaptation Layer
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_0546.htm
PRI/Q.931 Signaling Backhaul for Call Agent Applications
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_bhaul.htm
PRI QSIG Protocol
QSIG is a standardized PBX signaling protocol used primarily in Europe over E1 and BRI trunks and occasionally in North America over T1 trunks. The PRI QSIG Protocol feature provides QSIG signalling over PRI trunks.
PSTN Fallback
The goal of PSTN fallback is to monitor congestion in the IP network and either redirect calls to the PSTN or reject calls based on the network congestion. Calls can be rerouted to an alternate IP destination or to the PSTN if the IP network is found unsuitable for voice traffic at that time. The user defines the congestion thresholds based on the configured network. This functionality enables the service provider to give a reasonable guarantee about the quality of the conversation to their VoIP users at the time of call admission.
Note
PSTN fallback includes the following features:
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For more information, including configuration tasks and examples, and command references for PSTN fallback, please see PSTN Fallback. See the following document for additional information about the Call Admission Control for H.323 VoIP Gateways feature:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xa/122
xa_2/ft_pfavb.htmPSTN Fallback for Cisco 7200 and 7500 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftpstn4t.htm
Quality of Service for Virtual Private Networks
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftqosvpn.htm
RADIUS Attribute 52 and Attribute 53 Gigaword Support
The RADIUS Attribute 52 and Attribute 53 Gigaword Support feature introduces support for Attribute 52 (Acct-Input-Gigawords) and Attribute 53 (Acct-Output-Gigawords) in accordance with RFC 2869. Attribute 52 keeps track of the number of times the Acct-Input-Octets counter has rolled over the 32-bit integer throughout the course of the provided service; attribute 53 keeps track of the number of times the Acct-Output-Octets counter has rolled over the 32-bit integer throughout the delivery of service. Both attributes can be present only in Accounting-Request records where the Acct-Status-Type is set to "Stop" or "Interim-Update." These attributes can be used to keep accurate track of and bill for usage.
RADIUS Attribute 66 (Tunnel-Client-Endpoint) Enhancements
Virtual private networks (VPNs) use Layer 2 Forwarding (L2F) or Layer 2 Tunnel Protocol (L2TP) tunnels to tunnel the link layer of high-level protocols (for example, PPP) or asynchronous High-Level Data Link Control (HDLC)). Internet service providers (ISPs) configure their network access servers (NASs) to receive calls from users and forward the calls to the customer tunnel server. Usually, the ISP maintains only information about the tunnel server—the tunnel endpoint. The customer maintains the IP addresses, routing, and other user database functions of the tunnel server users.
The RADIUS Attribute 66 (Tunnel-Client-Endpoint) Enhancements feature adds the ability to specify the host name of the NAS—rather than the IP address of the NAS—in RADIUS attribute 66 (Tunnel-Client-Endpoint). See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/dtdt4.htm
RADIUS Attribute 77 for DSL
The RADIUS Attribute 77 for DSL feature introduces support for Attribute 77 (Connect-Info) to carry the textual name of the virtual circuit class associated with the given permanent virtual circuit (PVC). (Although attribute 77 does not carry the unspecified bit rate (UBR), the UBR can be inferred from the classname used if one UBR is set up on each class.) Attribute 77 is sent from the network access server (NAS) to the RADIUS server via Accounting-Request and Accounting-Response packets.
RADIUS Attribute 82: Tunnel Assignment ID
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftrada82.htm
RADIUS Attribute Screening
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftras.htm
RADIUS Number Translation VSAs for VoIP
The RADIUS Number Translation VSAs for VoIP feature enables a Cisco AS5x00 voice gateway to export pre- and post-translated called and calling numbers to a RADIUS server in the form of generic vendor-specific attributes (VSA). Cisco gateways can be configured to present gateway received, gatekeeper translated, and final translated numbers to the RADIUS server.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/vapp_dev/vsaig3.htm
RADIUS Packet of Disconnect
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_pod1.htm
RADIUS Route Download
The RADIUS Route Download feature allows users to configure their network access server (NAS) to send static route download requests to authentication, authorization, and accounting (AAA) servers specified by a named method list. Before this feature, all RADIUS authorization requests for static route download could be sent only to AAA servers specified by the default method list.
This feature extends the functionality of the aaa route download command to allow users to specify the name of the method list that will be used to direct static route download requests to the AAA servers. The aaa route download command must be used to add separate method lists; however, users will continue to enable the aaa authorization configuration default command to download static route configuration information from the AAA server specified by the default method list.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftradrou.htm
RADIUS Tunnel Preference for Load Balancing and Fail-Over
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftradtun.htm
Redial Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/dialenhc.htm
Reverse Path Forwarding - Source Exists Only
The Reverse Path Forwarding - Source Exists Only feature allows you to verify if the source IP address is valid in the Forwarding Information Base (FIB) for unicast Reverse Path Forwarding (uRPF) traffic. Packets that have not be allocated on the Internet, being used for spoofed source addresses, will be dropped. Packets with an entry in the FIB will be passed. This uRPF option can be used on internet service provider (ISP) peering routing devices with other ISPs.
Rotating Through Dial Strings
The Rotating Through Dial Strings feature allows you to specify the dialing order when multiple dial strings are configured. Options for dialing order include:
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This feature takes advantage of information available from a previous call attempt, such as whether the call was unsuccessful or the line was busy, and thereby increases the rate of successful calls.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftrotdls.htm.
RPR+ (Route Processor Redundancy Plus) on Cisco 7500 Series Routers
The RPR+ feature is an enhancement of the RPR feature on Cisco 7500 series routers. RPR+ keeps the Virtual Interface Processors (VIPs) from being reset and reloaded when a switchover occurs between the active and standby Route Switch Processors (RSPs). See the following document for additional information:
RSVP Scalability Enhancements
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/rsvpscal.htm
RSVP Support for ATM/PVCs
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/rsvp_atm.htm
RSVP Support for Low Latency Queueing
Resource Reservation Protocol (RSVP) is a network-control protocol that provides a means for reserving network resources—primarily bandwidth—to guarantee that applications transmitting end-to-end across networks achieve the desired quality of service (QoS).
RSVP enables real-time traffic (which includes voice flows) to reserve resources necessary for low latency and bandwidth guarantees.
Voice traffic has stringent delay and jitter requirements. It must have very low delay and minimal jitter per hop to avoid degradation of end-to-end QoS. This calls for an efficient queueing implementation, such as Low Latency Queueing (LLQ), that can service voice traffic at almost strict priority in order to minimize delay and jitter.
RSVP uses weighted fair queueing (WFQ) to provide fairness among flows and to assign a low weight to a packet to attain priority. However, the preferential treatment provided by RSVP is insufficient to minimize the jitter because of the nature of the queueing algorithm itself. As a result, the low latency and jitter requirements of voice flows might not be met in the prior implementation of RSVP and WFQ.
RSVP provides admission control. However, to provide the bandwidth and delay guarantees for voice traffic and get admission control, RSVP must work with LLQ. The RSVP support for LLQ feature allows RSVP to classify voice flows and queue them into the priority queue (PQ) within the LLQ system while simultaneously providing reservations for nonvoice flows by getting a reserved queue.
Secure Copy
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftscp.htm
Secure Shell (SSH) Support over IPv6
Secure Shell (SSH) in IPv6 functions the same and offers the same benefits as SSH in IPv4—the SSH Server feature enables an SSH client to make a secure, encrypted connection to a Cisco router, and the SSH Client feature enables a Cisco router to make a secure, encrypted connection to another Cisco router or to any other device that is running an SSH server. IPv6 enhancements to SSH consist of support for IPv6 addresses that enable a Cisco router to accept and establish secure, encrypted connections with remote IPv6 nodes over an IPv6 transport.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/index.htm
Secure Shell (SSH) Version 1 Server Support
Secure Shell (SSH) is an application and a protocol that provide a secure replacement to the Berkeley r-tools. The protocol secures the sessions using standard cryptographic mechanisms, and the application can be used much like the Berkeley rexec and rsh tools are used. There are currently two versions of SSH available: SSH Version 1 and SSH Version 2. Only SSH Version 1 is implemented in Cisco IOS software. For more information on this feature, see the "Configuring Secure Shell" chapter of the Cisco IOS Security Configuration Guide, Release 12.2.
This feature was originally introduced in Cisco IOS Release 12.1(1)T. This release adds support for the Cisco 826, Cisco 827, and Cisco 827-4V platforms.
Sequential Location Request Enhancement
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftseqlrq.htm
Service Assurance Agent (SAA) Application Performance Monitor (APM)
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft2_apm.htm
Service Assurance Agent (SAA) Support for Frame Relay, VoIP, and MPLS VPN Monitoring
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft1csaa.htm
Service Selection Gateway
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122b/122b_4/122b4_sg/ft_ssg.htm
Session Initiation Protocol (SIP) for VoIP
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_sip72.htm
Shell-Based Authentication of VPDN Users
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122defer/ftexvpnt.htm
Simple Network-Enabled Auto-Provisioning for Cisco IAD2420 Series IADs
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftapiad8.htm
SIP Diversion Header Implementation for Redirecting Number
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SIP Gateway Compliance to RFC2543-bis-04
RFC2543-bis-04 contains several changes to Session Initiation Protocol (SIP) gateway code. The SIP Gateway Compliance to RFC2543-bis-04 feature updates Cisco SIP Voice over IP (VoIP) gateways with the latest RFC changes. All changes are compatible with older RFC versions. Some of the changes include:
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SIP Gateway Support for the Bind Command
For detailed information about this feature, see the following document:
SIP Gateway Support for Third-Party Call Control
SIP is a new protocol developed by the Internet Engineering Task Force (IETF) Multiparty Multimedia Session Control (MMUSIC) Working Group as an alternative to the ITU-T H.323 specification. SIP is defined by RFC 2543 and is used for multimedia call session setup and control over IP networks.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t3/sipcf2.htm
SIP Gateway Support of RSVP and TEL URL
The SIP Gateway Support of RSVP and TEL URL feature also supports Telephone Uniform Resource Locators or TEL URLs. Currently Session Initiation Protocol (SIP) gateways support URLs in the SIP format. SIP URLs are used in SIP messages to indicate the originator, recipient, and destination of the SIP request. However, SIP gateways may also encounter URLs in other formats, such as TEL URLs. TEL URLs describe voice call connections. They also enable the gateway to accept TEL calls sent through the Internet and to generate TEL URLs in the request line of outgoing INVITE requests.
See the following document for additional information:
SIP Intra-gateway Hairpinning
SIP hairpinning is a call routing capability in which an incoming call on a specific gateway is signaled through the IP network and back out the same gateway. This call can be a public switched telephone network (PSTN) call routed into the IP network and back out to the PSTN over the same gateway.
Similarly, SIP hairpinning can be a call signaled from a line (for example, a telephone line) to the IP network and back out to a line on the same access gateway. With SIP hairpinning, unique gateways for ingress and egress are no longer necessary.
SIP INVITE Request with Malformed Via Header
SIP INVITE requests that a user or service participate in a session. Each INVITE contains a Via header that indicates the transport path taken by the request so far and where to send a response. In the past, when an INVITE contained a malformed Via header, the gateway would print a debug message and discard the INVITE without incrementing a counter. However, the printed debug message was often inadequate, and it was difficult to detect that messages were being discarded.
The SIP INVITE Request with Malformed Via Header feature provides a response to the malformed request. A counter, Client Error: Bad Request, increments when a response is sent for a malformed Via field. Bad Request is a class 400 response and includes the explanation Malformed Via Field. The response is sent to the source IP address (the IP address where the SIP request originated) at User Datagram Protocol (UDP) port 5060.
See the following document for additional information:
SIP Media Inactivity Timer
For detailed information about this feature, see the following document:
SIP Multiple 18x Responses
The SIP Multiple 18x Responses feature enhances forking support on the user agent client (UAC) by supporting sequential forking. With sequential forking the UAC receives multiple provisional responses (18x) but treats each response as a separate call leg. This allows the proxy to initiate a new INVITE if the called party does not pick up.
SIP T.37 Store and Forward Fax
SIP T.37 is an ITU specification that enables store-and-forward fax applications, as well as toggling from voice to fax, for example, providing an Interactive Voice Response (IVR) front end to a store-and-forward fax application.
See the following document for further information:
SIP T.38 Fax Relay
The SIP T.38 Fax Relay feature adds standards-based fax support to session initiation protocol (SIP) and conforms to ITU-T T.38 Procedures for real-time Group 3 facsimile communication over IP networks. The ITU-T standard specifies real-time transmission of faxes between two regular fax terminals over an IP network. Much like a voice call, SIP T.38 Fax Relay requires call establishment, data transmission, and release signaling.
See the following document for additional information:
SIP User Agent MIB
The Session Initiation Protocol (SIP) User Agent Client (UAC) and User Agent Server (UAS) are manageable by an SNMP-based network management platform, such as the Cisco Voice Manager. This release ports the feature to the Cisco 1750 and Cisco 1761 platforms. The SIP MIB has been defined, will be submitted to the IETF, and will be implemented on those platforms.
To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB website on Cisco.com at the following URL: http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
SIP—Configurable PSTN Cause Code Mapping
For calls to be established between a session initiation protocol (SIP) network and a PSTN network, the two networks must be able to interoperate. One aspect of their interoperation is the mapping of PSTN cause codes, which indicate reasons for Public Switched Telephone Network (PSTN) call failure or completion, for SIP status codes or events. The opposite is also true: SIP status codes or events are mapped to PSTN cause codes. Event mapping tables found in this document show the standard or default mappings between SIP and PSTN.
However, you may want to customize the SIP user agent software to override the default mappings between the SIP and PSTN networks. The Configurable PSTN Cause Code to SIP Response Mapping feature allows you to configure specific map settings between the PSTN and SIP networks. Thus, any SIP status code can be mapped to any PSTN cause code, or vice versa. When set, these settings can be stored in the NVRAM and are restored automatically on bootup.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xb/122xb_2/ftmap.htm
SIP—DNS SRV RFC2782 Compliance
Session Initiation Protocol (SIP) on Cisco Voice over IP (VoIP) gateways uses Domain Name System Server (DNS SRV) query to determine the IP address of the user endpoint. The query string has a prefix in the form of "protocol.transport." and is attached to the fully qualified domain name (FQDN) of the next hop SIP server. This prefix style, from RFC 2052, has always been available; however, with this release, a second style is also available. The second style complies with RFC 2782 and prepends the protocol label with an underscore "_"; as in "_protocol._transport." The addition of the underscore reduces the risk of the same name being used for unrelated purposes. The form compliant with RFC 2782 is the default style. Use the srv version command to configure the DNS SRV feature.
See the following document for further information:
SIP—Session Initiation Protocol for VoIP
Voice over IP (VoIP) currently implements the ITU H.323 specification within Internet Telephony Gateways (ITGs) to signal voice call setup. Session Initiation Protocol (SIP) is a protocol developed by the Internet Engineering Task Force (IETF) Multiparty Multimedia Session Control (MMUSIC) Working Group as an alternative to H.323. The Cisco SIP functionality equips Cisco routers to signal the setup of voice and multimedia calls over IP networks. SIP provides an alternative to H.323 within the VoIP internetworking software.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_sip72.htm
SIP—Session Initiation Protocol for VoIP Enhancements
Voice over IP (VoIP) currently implements the International Telecommunication Union (ITU)'s H.323 specification within Internet Telephony Gateways (ITGs) to signal voice call setup. The Session Initiation Protocol (SIP) is a new protocol developed by the Internet Engineering Task Force (IETF) for multimedia conferencing over IP. SIP features are compliant with IETF RFC 2543, SIP: Session Initiation Protocol, published in March 1999.
The Cisco SIP functionality, introduced in Cisco IOS Release 12.1(1)T and enhanced in Cisco IOS Release 12.1(3)T, enables Cisco access platforms to signal the setup of voice and multimedia calls over IP networks. The SIP feature also provides nonproprietary advantages in the areas of:
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See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftsipgv.htm
SLT Dual Ethernet
The Cisco SLT Dual Ethernet feature adds Cisco SLT dual Ethernet support to the virtual switch controller (VSC). This enhanced Cisco SLT support provides two IP networks and two additional Session Manager sessions (for a total of four Session Manager sessions) for improved backhaul communication. These additions increase the resilience of Cisco SLT/VSC communications by supporting two RUDP sessions from each Ethernet interface to each VSC. These VSC enhancements contribute to determining when to switch Ethernets and when to switch VSC activity.
The Cisco SLT, which is based on the Cisco 2611 Multi-Service Access Router, is shipped with two Ethernet interfaces. Until this feature was released, the Cisco SLT/VSC solution supported only one of the two Ethernet interfaces. Both Session Manager sessions needed to travel over this single Ethernet interface: This Ethernet was a single-point failure. The Cisco SLT Dual Ethernet feature supports the second Ethernet, which improves the resilience of the backhaul IP communications.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ftsltdua.htm
SLT G.732 Support
The Cisco SLT enables service providers to reliably transport Signaling System 7 (SS7) protocols across an IP network. The Cisco SLT uses the Cisco IOS SS7 SLT feature set, providing reliable interoperability with the Cisco SC2200 or the Cisco VSC3000 device. The Cisco SLT is responsible for terminating the Message Transfer Part (MTP) 1 and MTP 2 layers of the SS7 protocol stack. Using the Cisco Reliable User Datagram Protocol (RUDP), the Cisco SLT backhauls, or transports, upper-layer SS7 protocols across an IP network to the Cisco SC2200 or VSC3000 device. The Cisco SLT is supported only on the Cisco 2611 router.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_g732.htm
SNMP IF-MIB Support for VLAN (ISL, 802.1Q) Subinterfaces
This feature updates the Cisco implementation of the Interfaces Group MIB (abbreviated "IF-MIB" and defined in RFC 2233) to completely support ifTable and ifXTable entries for Inter-Switch Link (ISL) or 802.1Q encapsulated subinterfaces.
The Interface Table (the ifTable object) contains information on an Simple Network Management Protocol (SNMP) management entity's interfaces. Each sublayer of a network interface is considered to be an interface. An ifTable is a list of interface entries in which each entry contains management information applicable to that interface. The ifXTable is an extension to the ifTable. It contains replacements for objects of the ifTable that were deprecated. The ifXTable also contains 64-bit versions of the counters defined in the ifTable. Cisco IOS software can support both interfaces and subinterfaces in the ifTable.
ISL is a Cisco protocol for interconnecting switches and maintaining VLAN information as traffic is exchanged between switches. It can also be used to configure routing between any number of VLANs in a network by creating subinterfaces for each VLAN.
802.1Q (also referred to as "DOT1Q") is an IEEE standard protocol for interconnecting bridges/switches and maintaining VLAN information as traffic is exchanged between the devices. 802.1Q can also be used to configure routing between any number of VLANs in a network by creating subinterfaces for each VLAN.
The following objects of the ifTable have been updated: ifIndex, ifDescr, ifType, ifMtu, ifSpeed, ifPhysAddress, ifInOctets, ifInUcastPkts, ifInNUcastPkts, ifOutOctets, ifOutUcastPkts, ifOutNUcastPkts.
The following objects of the ifXTable have been updated:
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SNMP Support over VPN
The SNMP Support over VPN feature allows the sending and receiving of SNMP notifications using VPN Routing Forwarding table (VRF).
SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents.
A VPN is a network that provides high connectivity transfers on a shared system with the same usage guidelines as a private network. A VPN can be built on the Internet or on the service provider IP, Frame Relay, or ATM system.
A VRF stores per-VPN routing data. It defines the VPN membership of a customer site attached to the network access server (NAS). A VRF consists of an IP routing table, a derived Cisco Express Forwarding (CEF) table, guidelines, and routing protocol parameters that control the information that is included in the routing table.
The SNMP Support over VPN feature provides configuration commands that allow users to associate SNMP agents and managers with specific VRFs. The specified VRF is used for the sending of SNMP notifications (traps and informs) and responses between agents and managers. If a VRF is not specified, the default routing table for the VPN is used. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftnm_vpn.htm
SNMP Trap Support for the Virtual Switch Interface Master MIB
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/mstrmib.htm
SNMPv3 Community MIB Support
The SNMPv3 Community MIB Support feature implements support for the SNMP Community MIB (SNMP-COMMUNITY-MIB) module, defined in RFC 2576, in Cisco IOS software.
The SNMPv1/v2c Message Processing Model and Security Model require mappings between parameters used in SNMPv1 and SNMPv2c messages and the version independent parameters used in the Simple Network Management Protocol (SNMP) architecture. The SNMP Community MIB contains objects for mapping between these community strings and version-independent SNMP message parameters.
The mapped parameters consist of the SNMPv1/v2c community name and the SNMP securityName and contextEngineID/contextName pair. This MIB provides mappings in both directions, that is, a community name may be mapped to a securityName, contextEngineID, and contextName, or the combination of securityName, contextEngineID, and contextName may be mapped to a community name. This MIB also augments the snmpTargetAddrTable with a transport address mask value and a maximum message size value.
For implementation details, see the SNMP-COMMUNITY-MIB.my file, available through Cisco.com at http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en
Speech Recognition and Synthesis for Voice Applications
The Speech Recognition and Synthesis for Voice Applications feature adds support for automatic speech recognition (ASR) and text-to-speech (TTS) capabilities for VoiceXML and TCL applications. This feature provides interfaces to ASR and TTS media servers using Media Resource Control Protocol (MRCP), an application-level protocol developed by Cisco and its ASR and TTS media server partners. Client devices that process audio or video streams use MRCP to control media resources on the external ASR and TTS servers.
See the following documents for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ivrapp/index.htm
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/rel_docs/vxmlprg/index.htm
SS7 Four-Link Support for Cisco Signaling Link Terminal
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_4lnk.htm
SSH Terminal-Line Access
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftrevssh.htm
Static Cache Entry for IPv6 Neighbor Discovery
The Static Cache Entry for IPv6 Neighbor Discovery feature enables the configuring of static entries in the IPv6 neighbor discovery cache, which provides functionality in IPv6 that is equivalent to static Address Resolution Protocol (ARP) entries in IPv4. Static entries in the IPv6 neighbor discovery cache are not modified by the neighbor discovery process. Cisco IOS software uses static ARP entries in IPv4 to translate 32-bit IP addresses into 48-bit hardware addresses. In IPv6, Cisco IOS software uses static entries in the IPv6 neighbor discovery cache to translate 128-bit IPv6 addresses into 48-bit hardware addresses.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ipv6/ftipv6s.htm
Stream Control Transmission Protocol (SCTP), Release 1
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_sctp.htm
Stream Control Transmission Protocol (SCTP), Release 2
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_sctp2.htm
Supplementary Telephone Services for the Euro-ISDN Switch
The Cisco 800 series routers now support the following plain old telephone service (POTS) features for the European Telecommunications Standards Institute (ETSI) Euro-ISDN switch type:
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See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_vs800.htm
Survivable Remote Site Telephony
For detailed information about this feature, see the following document:
Survivable Remote Site Telephony Version 2.01
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/srs/srst20x/fallbak2.htm
T.37 for Cisco 7200
This feature adds T.37 standards-based store-and-forward fax protocol support for H.323 gateways and gatekeepers to the Cisco 7200 series. T.37 is an ITU-T recommended standard for store-and-forward fax that enables Cisco gateways and gatekeepers to interwork with other Cisco gateways and third-party H.323 devices that support the T.37 protocol.
See the following document for additional information:
T.37 store-and-forward fax was originally supported in Cisco IOS Release 12.1(5)T on the Cisco AS5300 platform. In Cisco IOS Release 12.2(8)T, support was added on the Cisco 1751, Cisco 2600 series, Cisco 3600 series, Cisco 3725, and Cisco 3745. In Cisco IOS Release 12.2(13)T, support was added on the Cisco AS5350 and the Cisco AS5400. Cisco IOS Release 12.2(15)T adds support on the Cisco 7200 series.
T.37/T.38 Fax Gateway and Fax Detection for Cisco 1751, Cisco 3725, and Cisco 3745
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/plfxrl17.htm
T.37/T.38 Fax Gateway for Cisco 2600 Series Routers and Cisco 3600 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/plfxrl26.htm
T.38 Fax Relay for VoIP H.323
The T.38 Fax Relay for VoIP H.323 feature provides standards-based Fax Relay protocol support on Cisco 2600 series, Cisco 3600 series, Cisco 7200 series and Cisco MC3810 series multiservice gateways. The Cisco proprietary Fax Relay solution is sometimes not an ideal solution for Enterprise and Service Provider customers who have implemented a mixed vendor network. Because the T.38 Fax Relay protocol is standards based, Cisco gateways and gatekeepers will now be able to interoperate with third-party T.38-enabled gateways and gatekeepers in a mixed vendor network where real time Fax Relay capabilities are required.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/faxapp/index.htm
Note
T.38 Fax Services for Cisco 1750 Access Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftfaxrly.htm
T1 Channel Associated Signaling (CAS)
Channel Associated Signaling (CAS) is the transmission of signaling information within the voice channel. Support for CAS is now available on T1 interfaces.
TCL IVR 2.0 Call Initiation and Callback
The TCL IVR 2.0 Call Initiation and Callback feature allows Tool Command Language (TCL) Interactive Voice Response (IVR) applications to make outbound calls without specifying an incoming call leg in the setup command.
The TCL IVR 2.0 Call Initiation and Callback feature modifies the following TCL IVR Version 2.0 verbs:
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In addition, the following new information tags were added to support the above changes:
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Finally, the following additions were made to the callInfo array:
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See the following TCL IVR API Command Reference for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/vapp_dev/tclivrv2/chapter3.htm
TCL IVR disconnect cause-code Manipulation
The leg disconnect command disconnects one or more call legs that are not part of any connection. The cause_code argument, which has been added in Cisco IOS Release 12.2(1)T, is an integer ISDN cause code for the disconnect. It is of the form di-xxx or just xxx, where xxx is the ISDN cause code. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/vapp_dev/tclivrv2.htm
TCL-Enabled Signaling Parameter Mapping
The TCL-Enabled Signaling Parameter Mapping feature provides control over call signaling information elements from a Tool Command Language (TCL) Interactive Voice Response (IVR) script to make the Cisco Media-Gateway (that is, the Cisco AS5300 and Cisco AS5800 platforms) interoperable with British Telecom and France Telecom networks. New parameters were introduced under the set callinfo command. See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/vapp_dev/tclivrv2/chapter3.htm
TCP Window Scaling
TCP Window Scaling adds support for the Window Scaling extension option in RFC 1323. To improve TCP performance in network paths with a large bandwidth-delay product, Long Fat Networks (LFNs), a larger window size is recommended. This TCP Window Scaling enhancement provides that support.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/tcpwslfn.htm
Timer and Retry Enhancements for L2TP and L2F
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftretreh.htm
Traffic Policing
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftpoli.htm
Trimble Palisade NTP Synchronization Driver for the Cisco 7200 Series Routers
The Trimble Palisade Smart Antenna can provide a signal that can by used for NTP time-synchronization of a network. The Trimble Palisade NTP Synchronization Kit can be connected to the auxiliary port of a Cisco 7200 router. The refclock (reference clock) driver provided by this feature provides the ability to receive an RTS time-stamp signal on the auxiliary port of the router.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t1/dtrimble.htm
Triple Data Encryption Standard Feature Set for Cisco 820 Series Routers
The Triple Data Encryption Standard (3DES) Cisco IOS feature is available on Cisco 820 series routers. This feature encrypts packet data. Cisco IOS software implements the mandatory 56-bit DES-Cipher Block Chaining (CBC) with an Explicit initialization vector (IV).
Trustpoint CLI
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/fttrust.htm
Tunnel ToS
For detailed information about this feature, see the following document:
TX Ring Adjustment
Each permanent virtual circuit (PVC) has a hardware transmit queue, or TX ring. It is a simple FIFO queue, and on the c820 it has a default size of 16 packets. This feature allows adjustment of the size of the TX ring. If both voice and data packets are transmitted on the same PVC, the length of the TX ring must be reduced to a value of about 3 packets. This reduces delay and jitter for voice packets by decreasing the maximum number of data packets or fragments that can be in front of a voice packet inside the TX ring.
Two-Rate Policer
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft2rtplc.htm
Unspecified Bit Rate Plus (UBR+) and ATM Enhancements for Service Provider Integrated Access
For detailed information about this feature, see the following document:
Update to the MGCP 1.0 Including NCS 1.0 and TGCP 1.0 Profiles Feature
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_mgupd.htm
Using 31-Bit Prefixes on IPv4 Point-to-Point Links
The Using 31-Bit Prefixes on IPv4 Point-to-Point Links feature allows 31-bit prefixes to be used on IP version 4 point-to-point links. The number of IP addresses is reduced by 50 percent and the number of denial of service (DoS) attacks is also reduced.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft31addr.htm
Virtual Circuit (VC) Merge
The Virtual Circuit (VC) Merge feature allows multiple incoming VCs to be merged into a single outgoing VC. The feature is only available on frame-based connections carrying ATM Adaptation Layer 5 (AAL5) frames consisting of multiple cells. VC Merge helps scale Multiprotocol Label Switching (MPLS) networks, because it allocates only one VC to each destination on a link.
VC merge maps several incoming labels to one single outgoing label. Cells from different virtual channel identifiers (VCIs) traveling to the same destination are transmitted to the same outgoing VC using multipoint-to-point connections.
VC merge allows the switch to transmit cells coming from different VCIs over the same outgoing VCI to the same destination. In other words, VC merge queues AAL5 frames in input buffers until the switch receives the last frame. Then the switch transmits the cells from that AAL5 frame before it sends any cells from other frames. VC merge requires the switch to provide buffering, but no more buffering than is required in IP networks. VC merge slightly delays the transfer of frames; however, VC merge is for IP traffic and not for traffic that requires speed. IP traffic tolerates delays better than other traffic on the ATM network.
VLAN Range
For detailed information about this feature, see the following document:
VoAAL2 Profile 9 Support for BLES Interoperability
This feature allows Cisco routers to provide VoAAL2 (Voice over ATM Adaption Layer 2) Profile 9 (G.711ulaw and G.711alaw with 44-byte voice payload) for interoperability with V5.2 and GR.303 Voice GW to Class 5 switches. This feature allows service providers to deliver voice services over xDSL and T1 ATM networks from Class 5 switches.
Voice Application Access To SS7 Signaling
The Voice Application Access To SS7 Signaling feature provides a means of transporting ISUP signaling messages from SS7 networks to VoIP networks. ISUP messages and parameters are converted to Generic Transparency Descriptor (GTD) format and transported by the underlying call signalling messages to each node transited by the call.
See the following document for information about the information tags that are associated with this feature:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/vapp_dev/tclivrv2/chapter4.htm
Voice over ATM with AAL2 Trunking on Cisco 7200 Series Routers
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft_aal72.htm
Voice over IP Q.SIG Network Transparency
Integration of Q.SIG with the Cisco AS5400 universal access server enables Cisco voice switching services to connect private branch exchanges (PBXs), key systems (KTs), and central office switches (COs) that communicate by using the Q.SIG protocol.
The Q.SIG protocol is a variant of ISDN D-channel voice signaling. It is based on the ISDN Q.921 and Q.931 standards and is becoming a worldwide standard for PBX interconnection. By using Q.SIG signaling, the Cisco AS5300 can route incoming voice calls from a private integrated services network exchange (PINX) across a wide-area network (WAN) to a peer Cisco AS5400, which can then transport the signaling and voice packets to a second PINX.
Q.SIG on the AS5400 allows the user to place Q.SIG calls into and receive Q.SIG calls from Cisco Voice-over-IP (VoIP) networks. The Cisco packet network appears to PBXs as a large, distributed transit PBX that can establish calls to any destination served by a Cisco voice node. The switched voice connections are established and torn down in response to Q.SIG control messages that come over an ISDN PRI D channel. The Q.SIG message is passed transparently across the IP network and the message appears to the attached PINXs as a transit network. The PINXs are responsible for processing and provisioning the attached services.
Note
Voice Support for Japan on Cisco 800 Series Routers, Phase 2
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_ktna2.htm
VoiceXML For Cisco IOS
Applications written in Voice eXtensible Markup Language (VoiceXML) provide access through a voice browser to content and services over the telephone, just as Hypertext Markup Language (HTML) provides access through a web browser running on a PC. The universal accessibility of the telephone and its ease of use makes VoiceXML applications a powerful alternative to HTML for accessing the information and services of the World Wide Web.
The Cisco IOS VoiceXML feature provides a platform for interpreting VoiceXML documents. When a telephone call is made to the Cisco VoiceXML-enabled gateway, VoiceXML documents are downloaded from web servers, providing content and services to the caller, typically in the form of pre-recorded audio in an IVR application. Customers can access online business applications over the telephone, providing for example, stock quotes, sports scores, or bank balances.
VoiceXML brings the advantages of web-based development and content delivery to voice applications. It is similar to HTML in its simplicity and in its presentation of information. The Cisco IOS VoiceXML feature is based on the W3C VoiceXML 2.0 Working Draft and is designed to provide web developers great flexibility and ease in implementing VoiceXML applications.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/ivrapp/index.htm
VoiceXML Media Volume and Rate Controls
With the VoiceXML Media Volume and Rate Controls feature, the volume of audio prompts played out by VoiceXML applications can now be adjusted during playback. Audio prompts that are played out from memory or chunked transfer mode using G.711 or GSM-FR codecs can also be speeded up or slowed down. A VoiceXML variable contains the rate and duration of the last prompt that was played. The rate and volume of prompts is controlled by using Cisco-specific attributes in the VoiceXML document.
VoiceXML SS7 ISUP Session Variables
The ISUP signaling message set used in SS7 networks contains information that is used for call establishment, routing, and billing functions. To help transport these messages from SS7 networks (using ISUP based messages) to VoIP networks (using H.323 and SIP based messages), ISUP messages and parameters are represented in generic transparency descriptor (GTD) format and transported by the underlying call signaling messages to each node transited by the call. These GTD parameters and fields are extracted and mapped to TCL and VoiceXML variables for access by Tool Command Language (TCL) and VoiceXML scripts.
VoiceXML Transfer Enhancements
THe VoiceXML Transfer Enhancements feature enhances the transfer functionality in the Cisco VoiceXML implementation by introducing specific Cisco parameters as attributes for the transfer element.
VoiceXML Voice Store and Forward
The VoiceXML Voice Store and Forward feature expands Cisco IOS VoiceXML to include streaming-based recording and playout. It enables the input and processing of form field entries using recorded audio clips, rather than numeric input only. Audio clips can be captured and then submitted to an external web server using HTTP or Real Time Streaming Protocol (RTSP), or to a messaging server using Simple Mail Transfer Protocol (SMTP) for additional processing.
VoIP Call Admission Control Using RSVP
The VoIP Call Admission Control Using RSVP feature synchronizes Resource Reservation Protocol (RSVP) procedures with H.323 Version 2 (Fast Connect) setup procedures to guarantee that the required Quality of Service (QoS) for VoIP calls is maintained across the IP network. In older Cisco IOS releases, VoIP gateways used H.323 Version 1 (Slow Connect) procedures when initiating calls requiring bandwidth reservation. This feature, which is enabled by default, allows gateways to use H.323 Version 2 (Fast Connect) for all calls, including those requiring RSVP.
Note
VPDN Default Group Template
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdevpdn.htm
VPDN Group Session Limiting
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftvpdngs.htm
VPN Routing Forwarding (VRF) Framed Route (Pool) Assignment via PPP
The VPN Routing Forwarding (VRF) Framed Route (Pool) Assignment via PPP feature introduces support to make the following RADIUS attributes VRF aware: attribute 22 (Framed-Route), a combination of attribute 8 (Framed-IP-Address) and attribute 9 (Framed-IP-Netmask), and the Cisco VSA route command. Thus, static IP routes can be applied to a particular VRF routing table rather than the global routing table.
VRRP Support
There are several ways a LAN client can determine which router should be the first hop to a particular remote destination. The client can use a dynamic process or static configuration. Examples of dynamic router discovery are as follows:
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The drawback to dynamic discovery protocols is that they incur some configuration and processing overhead on the LAN client. Also, in the event of a router failure, the process of switching to another router can be slow.
An alternative to dynamic discovery protocols is to statically configure a default router on the client. This approach simplifies client configuration and processing, but creates a single point of failure. If the default gateway fails, the LAN client is limited to communicating only on the local IP network segment and is cut off from the rest of the network.
The Virtual Router Redundancy Protocol (VRRP) feature can solve the static configuration problem. VRRP enables a group of routers to form a single virtual router. The LAN clients can then be configured with the virtual router as their default gateway. The virtual router, representing a group of routers, is also known as a VRRP group.
See the following document for additional information:
WRED Enhancement—Explicit Congestion Notification (ECN)
Currently, the congestion control and avoidance algorithms for TCP are based on the idea that packet loss is an appropriate indication of congestion on networks that transmit data using the best-effort service model. When a network uses the best-effort service model, the network delivers data if it can, without any assurance of reliability, delay bounds, or throughput. However, these algorithms and the best-effort service model are not suited to applications that are sensitive to delay or packet loss (for instance, interactive traffic including Telnet, web browsing, and transfer of audio and video data). Weighted random early detection (WRED), and by extension, Explicit Congestion Notification (ECN), helps to solve this problem.
To indicate congestion, WRED drops packets on the basis of the average queue length exceeding a specific threshold value. ECN is an extension to WRED in that ECN marks packets instead of dropping them when the average queue length exceeds a specific threshold value. When configured with the WRED Enhancement—Support for Explicit Congestion Notification feature, routers and end hosts would use this marking as a signal that the network is congested and slow down sending packets.
This feature provides an improved method for congestion avoidance by allowing the network to mark packets for transmission later, rather than dropping them from the queue. Marking the packets for transmission later accommodates applications that are sensitive to delay or packet loss and provides improved throughput and application performance.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftwrdecn.htm
X.25 Annex G Session Status Change Reporting
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftanxg.htm
X.25 Over TCP Profiles
The Cisco X.25 over TCP (XOT) service was originally developed as an X.25 class of service that was only designed to switch X.25 traffic across an IP network. This service allowed network administrators to connect X.25 devices across the rich connectivity and media features available to IP traffic. XOT uses a set of default parameters to make this type of network easy to design.
When the XOT' capabilities were enhanced to support packet assembler/disassembler (PAD) traffic on an XOT session, network designers saw a need to be able to configure parameters for increased flexibility. For instance, because XOT does not have any physical interfaces that an administrator can configure, PAD over XOT sessions cannot be configured with interface map or facility commands to establish a PAD connection using nondefault values.
The introduction of X.25 profiles for XOT allows the network designer added flexibility to control the X.25 class services of XOT for PAD and XOT switching usage.
Another important aspect of this feature is that it allows you to associate access lists with XOT connections, enabling you to apply security on the basis of IP addresses and to have a unique X.25 configuration for specified IP addresses.
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ft_xotp.htm
X.25 Record Boundary Preservation for Data Communications Networks
The X.25 Record Boundary Preservation for Data Communications Networks feature enables hosts using TCP/IP-based protocols to exchange data with devices that use the X.25 protocol, retaining the logical record boundaries indicated by use of the X.25 "more data" bit (M-bit).
See the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t8/ftdcnrbp.htm
MIBs
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
http://tools.cisco.com/ITDIT/MIBS/servlet/index
If Cisco MIB Locator does not support the MIB information that you need, you can also obtain a list of supported MIBs and download MIBs from the Cisco MIBs page at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
To access Cisco MIB Locator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
http://tools.cisco.com/RPF/register/register.do
Deprecated and Replacement MIBs
Old Cisco MIBs will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs without affecting existing Cisco IOS products or network management system (NMS) applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 24.
Limitations and Restrictions
SNMP Version 1 BGP4-MIB Limitations
You may notice incorrect BGP trap OID output when using the SNMP version 1 BGP4-MIB that is available for download at ftp://ftp.cisco.com/pub/mibs/v1/BGP4-MIB-V1SMI.my. When a router sends out BGP traps (notifications) about state changes on an SNMP version 1 monitored BGP peer, the enterprise OID is incorrectly displayed as .1.3.6.1.2.1.15 (bgp) instead of .1.3.6.1.2.1.15.7 (bgpTraps). The problem is not due to any error with Cisco IOS software. This problem occurs because the BGP4-MIB does not follow RFC 1908 rules regarding version 1 and version 2 trap compliance. This MIB is controlled by IANA under the guidance of the IETF, and work is currently in progress by the IETF to replace this MIB with a new version that represents the current state of the BGP protocol. In the meantime, we recommend that you use the SNMP version 2 BGP4-MIB or the CISCO-BGP4-MIB to avoid an incorrect trap OID.
Important Notes
The following sections contain important notes about Cisco IOS Release 12.3.
Deferrals
Cisco IOS software images are subject to deferral. Cisco recommends that you view the deferral notices at the following location to determine if your software release is affected:
http://www.cisco.com/public/sw-center/sw-ios-advisories.shtml
Field Notices and Bulletins
For general information about the types of documents listed in this section, see the following document:
http://www.cisco.com/public/support/tac/fn_index.html
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Important Notes for Cisco IOS Release 12.3
The following information applies to all releases of Cisco IOS Release 12.3.
Configuring MD5 Authentication for BGP Peering Sessions
This document provides general information about deploying MD5 authentication for a BGP session. You can configure MD5 authentication between two BGP peers, meaning that each segment sent on the TCP connection between the peers is verified. MD5 authentication must be configured with the same password on both BGP peers; otherwise, the connection between them will not be made. Configuring MD5 authentication causes the Cisco IOS software to generate and check the MD5 digest of every segment sent on the TCP connection. If authentication is invoked and a segment fails authentication, then an error message will be displayed in the console.
Old Behavior
In previous versions of Cisco IOS software, configuring MD5 authentication for a BGP peering session was generally considered to be difficult because the initial configuration and any subsequent MD5 configuration changes required the BGP neighbor to be reset.
New Behavior
This behavior has been changed in current versions of Cisco IOS software. CSCdx23494 introduced a change to MD5 authentication for BGP peering sessions. The BGP peering session does not need to be reset to maintain or establish the peering session for initial configuration or after the MD5 configuration has been changed. However, the configuration must be completed on both the local and remote BGP peer before the BGP hold timer expires. If the hold down timer expires before the MD5 configuration has been completed on both BGP peers, the BGP session will time out.
The following example enables the authentication feature between this router and the BGP neighbor at 10.108.1.1. The password that must also be configured for the neighbor is bla4u00=2nkq. The remote peer must be configured before the holddown timer expires.
router bgp 109neighbor 10.108.1.1 password bla4u00=2nkq
When the password has been configured, the MD5 key is applied to the tcp session immediately. If one peer is configured before the other, the TCP segments will be discarded on both the local and remote peers due to an authentication failure. The peer that is configured with the password will print an error message in the console similar to the following:
00:03:07: %TCP-6-BADAUTH: No MD5 digest from 10.0.0.2(179) to 10.0.0.1(11000)The time period in which the password must changed is typically the life time of a stale BGP session. When the password or MD5 key is configured, incoming TCP segments will only be accepted if the key is known. If the key is unknown on both the remote and local peer, the TCP segments will be dropped, and the BGP session will time out when the holddown timer expires.
If the BGP session has been preconfigured with a hold time of 0 seconds, no keepalive messages will be sent. The BGP session will stay up until one of the peers, on either side, tries to transmit a message (For example, a prefix update).
Note
Jumbo Frames Not Supported
In Cisco IOS interim Release 12.3(7.3) and later Cisco IOS Release 12.3 releases, the MTU size for the Gigabit Ethernet Network Module (NM-1GE) cannot be set to Jumbo Frame on the Cisco 2691, Cisco 3660, Cisco 3725, and Cisco 3745 platforms. Jumbo Frames are supported in earlier Cisco IOS Release 12.3 releases, Cisco IOS Release 12.3(14)T, and Cisco IOS Release 12.4 and later releases.
Important Notes for Cisco IOS Release 12.3(10)
The following information applies to Cisco IOS Release 12.3(10).
Configuring the IP Static Route Adjustment Interval
The ip route static adjust-time command allows you to configure the IP static route adjustment timer to any interval from 1 to 60 seconds. The benefit of reducing the timer from the 60-second default value is to increase the convergence when static routes are used. However, reducing the interval can be CPU-intensive if the value is set very low and you have a large number of static routes configured. see the following document for additional information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/fs_sradj.htm
ip nat service fullrange Command
When enabling Port Address Translation (PAT) on a router that is running Cisco IOS and connecting VPN clients to different VPN gateways, by default the source port 500 or 501 will be translated to the lower range (0 to 511) of port groups. To enable PAT to allow translation of an inside local port in the range of 0 to 65535, use the ip nat service fullrange command.
Important Notes for Cisco IOS Release 12.3(6)
The following information applies to Cisco IOS Release 12.3(6).
debug vwic-mft firmware controller Command
To display debug output from the multiflex (MFT) Voice/WAN interface card (VWIC) controller firmware, use the debug vwic-mft firmware controller command in privileged EXEC mode. To turn off debugging output, use the no form of this command.
debug vwic-mft firmware controller {t1 | e1} slot/port {alarm | all | config | fdl | loopback | register display | status}
no debug vwic-mft firmware controller {t1 | e1} slot/port {alarm | all | config | fdl | loopback | register display | status}
Syntax Description
Command Modes
Privileged EXEC
Command History
12.3(6)
This command was introduced.
12.3(7)T
This command was integrated into Cisco IOS Release 12.3(7)T.
Usage Guidelines
Use the debug vwic-mft firmware controller command in privileged EXEC mode to provide firmware-level information for VWICs when information is required beyond the Cisco IOS T1 and E1 controller statistics. The physical-layer information generated by this command includes alarm conditions, line status, controller issues, and register settings, all of which can be used to help troubleshoot MFT VWIC problems.
All the debugging keywords, except register display, enable debugging on both ports of a 2-port card. For example, if T1 0/0 and T1 0/1 are two ports on a 2-port MFT card and any of the keywords except register display is enabled, debugging output will be generated for both ports because they share a common firmware system.
The Cisco 1- and 2-port T1/E1 multiflex VWICs support voice and data applications in Cisco 2600, Cisco 3600, and Cisco 3700 series multiservice routers. The multiflex VWIC combines WAN interface card and voice interface card functionality.
Caution
Examples
The following sample output displays firmware output about alarm messages for an MFT VWIC installed in slot 0.
Router# debug vwic-mft firmware controller e1 0/0 alarmvwic-mft firmware output messages for wic slot set to: AlarmRouter#*Mar 4 13:58:14.702: E1T1 0/1 FW: alm1:0e p:01 ALOS LOS LOF*Mar 4 13:58:15.194: E1T1 0/1 FW: CERR: 00*Mar 4 13:58:15.194: E1T1 0/1 FW: MERR: 00*Mar 4 13:58:15.194: E1T1 0/1 FW: FERR: 00
Note
Table 25 describes the significant fields shown in the display.
Related Commands
show controllers e1
Displays information about E1 links.
show controllers t1
Displays information about T1 links.
Important Notes for Cisco IOS Release 12.3(5)
The following information applies to Cisco IOS Release 12.3(5).
Cisco Images Deferred Because of Caveat CSCed00975
Five images in Cisco IOS Release 12.3(5) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCed00975 (with headline: Defer RPM-PR and RPM-XF Image). This caveat affects the following images:
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The software solution for these deferred images is Cisco IOS Release 12.3(8).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Important Notes for Cisco IOS Release 12.3(3a)
The following information applies to Cisco IOS Release 12.3(3a).
Cisco Images Deferred Because of Caveat CSCec06547
Four images in Cisco IOS Release 12.3(3a) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCec06547 (with headline: seeing MIPC timer error after boot and PIF-3-GIGE_DISABLE_GMAC_ERROR). This caveat affects the following images:
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The software solution for these deferred images is Cisco IOS Release 12.3(3b).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Important Notes for Cisco IOS Release 12.3(3)
The following information applies to Cisco IOS Release 12.3(3).
Cisco Images Deferred Because of Caveat CSCec06547
Four images in Cisco IOS Release 12.3(1), Release 12.3(1a), and Release 12.3(3) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCec06547 (with headline: seeing MIPC timer error after boot and PIF-3-GIGE_DISABLE_GMAC_ERROR). This caveat affects the following images:
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The software solution for these deferred images is Cisco IOS Release 12.3(3a).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Cisco Images Deferred Because of Caveat CSCin50865
Two images in Cisco IOS Release 12.3(3) have been deferred because of a severe defect. This defect has been assigned Cisco caveat ID CSCin50865. With this caveat, the called party hangs during an H.323 call. This caveat affects the following images:
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The software solution is Cisco IOS Release 12.3(3a).
In order to increase network availability, Cisco recommends that you upgrade affected IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco, with respect to the deferred images will apply to the replacement images.
Important Notes for Cisco IOS Release 12.3(1a)
The following information applies to Cisco IOS Release 12.3(1a).
Cisco Images Deferred Because of Caveat CSCec06547
Four images in Cisco IOS Release 12.3(1), Release 12.3(1a), and Release 12.3(3) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCec06547 (with headline: seeing MIPC timer error after boot and PIF-3-GIGE_DISABLE_GMAC_ERROR). This caveat affects the following images:
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The software solution for these deferred images is Cisco IOS Release 12.3(3a).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Cisco Platforms Deferred Because of Caveats CSCeb49708, CSCec06547, and CSCin50865
All platforms in Cisco IOS Release 12.3(1) and Release 12.3(1a) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCeb49708 (with headline: NRP2 hangs while trying to establish PPPoEoE session); Cisco caveat ID CSCec06547 (with headline: seeing MIPC timer error after boot and PIF-3-GIGE_DISABLE_GMAC_ERROR); and Cisco caveat ID CSCin50865 (with headline: Called part hangs during the H.323 call). These caveats affect all Cisco platforms.
The software solution for these deferred images is Cisco IOS Release 12.3(3e).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Important Notes for Cisco IOS Release 12.3(1)
The following information applies to Cisco IOS Release 12.3(1).
Cisco Images Deferred Because of Caveat CSCdy01600
All ICS7700 images in Cisco IOS Release 12.3(1), 12.3(1a) and 12.3(3) were deferred because of a severe defect. This defect has been assigned Cisco caveat ID CSCdy01600 (Headline: Router fails to recognize voice cards or load running config). This caveat affects all ICS7700 images supported in the affected releases.
The software solution for these deferred images is Cisco IOS Release 12.3(2)XA.
In order to increase network availability, Cisco recommends that you upgrade affected IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco, with respect to the deferred images will apply to the replacement images.
Cisco Images Deferred Because of Caveats CSCea31186, CSCeb49708, and CSCeb49797
Two images in Cisco IOS Release 12.3(1) and 12.3(1a) were deferred because of severe defects. These defects have been assigned Cisco caveat IDs CSCea31186, CSCeb49708, and CSCeb49797:
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Headline: Acct-Session-Id not sent correctly with SSG on PPPoA with full VA
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Headline: NRP2 hangs while trying to establish PPPoEoE session
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Headline: LNS crashing with PPPoE/L2TP session
These caveats affect the following images:
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The software solution for these deferred images is Cisco IOS Release 12.3(3).
In order to increase network availability, Cisco recommends that you upgrade affected IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco, with respect to the deferred images will apply to the replacement images.
Cisco Images Deferred Because of Caveat CSCeb31735
Five images in Cisco IOS Release 12.3(1) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCeb31735. This caveat affects the following images:
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With caveat CSCeb31735, this DDTS is used to track the deferral of unsupported RPM and RPM-XF images that are listed above. The software solution for these deferred images is Cisco IOS Release 12.2(15)T5.
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Cisco Images Deferred Because of Caveat CSCec06547
Four images in Cisco IOS Release 12.3(1), Release 12.3(1a), and Release 12.3(3) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCec06547 (with headline: seeing MIPC timer error after boot and PIF-3-GIGE_DISABLE_GMAC_ERROR). This caveat affects the following images:
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The software solution for these deferred images is Cisco IOS Release 12.3(3a).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Cisco IOS Packaging
Cisco IOS Packaging redefines and simplifies the current Cisco IOS software feature sets. Cisco greatly improves the customer software selection experience by reducing the number of packages from forty-four to eight. The first four packages have been designed to satisfy requirements in four typical service categories: IP data, converged voice and data, Security and VPN, and Enterprise routing protocols. Three additional premium packages offer new Cisco IOS software feature combinations that address more complex network requirements. All features merge in the most premium package, Advanced Enterprise Services, which integrates support for all routing protocols with Voice, Security and VPN capabilities.
Feature inheritance is another powerful aspect of Cisco IOS Packaging. Once a feature is introduced, it is not removed in the more comprehensive packages. Feature inheritance principle provides clear migration, clarifying the feature content of the different packages and how they relate to one another.
Cisco IOS Packaging also simplifies image naming. Each name has been designed to effectively convey the high-level feature content of, and the inheritance characteristics for, the new packages.
Cisco IOS Packaging will be available for customers in Cisco IOS software major release 12.3. It will be supported on the Cisco 1700, Cisco 2600, and Cisco 3700 series routers. Most Cisco Access, Aggregation, and Core routers will support this model in the future.
For additional information about Cisco IOS Packaging, see the following product bulletin:
http://www.cisco.com/warp/public/732/releases/packaging/docs/pb.pdf
Cisco Platforms Deferred Because of Caveats CSCeb49708, CSCec06547, and CSCin50865
All platforms in Cisco IOS Release 12.3(1) and Release 12.3(1a) were deferred because of severe defects. These defects have been assigned Cisco caveat ID CSCeb49708 (with headline: NRP2 hangs while trying to establish PPPoEoE session); Cisco caveat ID CSCec06547 (with headline: seeing MIPC timer error after boot and PIF-3-GIGE_DISABLE_GMAC_ERROR); and Cisco caveat ID CSCin50865 (with headline: Called part hangs during the H.323 call). These caveats affect all Cisco platforms.
The software solution for these deferred images is Cisco IOS Release 12.3(3e).
To increase network availability, Cisco recommends that you upgrade affected Cisco IOS images with the suggested replacement software images. Cisco will discontinue manufacturing shipment of affected Cisco IOS images. Any pending order will be substituted by the replacement software images.
Note
The terms and conditions that governed your rights and obligations and those of Cisco with respect to the deferred images will apply to the replacement images.
Caveats for Cisco IOS Release 12.3
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only select severity 3 caveats are included in the caveats document.
For information on caveats in Cisco IOS Release 12.3, see the Caveats for Cisco IOS Release 12.3 document, which lists severity 1 and 2 caveats and select severity 3 caveats for Cisco IOS Release 12.3 and is located on Cisco.com.
The Dictionary of Internetworking Terms and Acronyms contains definitions of acronyms that are not defined in this document:
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/index.htm
Note
Troubleshooting
The following documents provide assistance with troubleshooting your Cisco hardware and software:
•
http://www.cisco.com/warp/public/108/index.shtml
•
http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00800cdd51.shtml
•
http://www.cisco.com/warp/public/63/lose_config_6201.html
•
http://www.cisco.com/warp/public/63/why_hang.html
•
http://www.cisco.com/warp/public/63/mallocfail.shtml
•
http://www.cisco.com/warp/public/63/highcpu.html
•
http://www.cisco.com/warp/public/122/crashes_router_troubleshooting.shtml
•
http://www.cisco.com/warp/public/63/car_rate_limit_icmp.html
