Cross-Platform Release Notes for Cisco IOS Release 12.2SB
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Table Of Contents
Cross-Platform Release Notes for Cisco IOS Release 12.2SB
Supported Port Adapters for the Cisco 7200 Series, Cisco 7301, Cisco 7304, Cisco 7500 Series
Supported Line Cards for the Cisco 10000 Series Routers
Determining the Software Version
Upgrading to a New Software Release
Bundled FPGAs for the Cisco 7304
Shared Port Adapter FPD Image Packages for the Cisco 7304
New Hardware Features in Cisco IOS Release 12.2(28)SB2
CWDM SFP for the 1-Port Gigabit Ethernet Half-Height Line Card
New Software Features in Cisco IOS Release 12.2(28)SB2
Any Transport over MPLS (AToM): Sequencing Support
ATM OAM Support for F5 Continuity Check
BGP Support for NonStop Routing (NSR) with Stateful Switchover (SSO)
Distributed LFI/dQoS over Leased Lines
Enhanced Fast Software Upgrade (eFSU)
IEEE 802.1Q-in-Q VLAN Tag Termination
MPLS Traffic Engineering Features
MPLS VPN Half-Duplex VRF with Dynamic and Static PE-CE Routing
NSF/SSO: Layer 2 Local Switching Support for Ethernet to Ethernet VLAN Interworking
NSF/SSO: Layer 2 Local Switching Support for Frame Relay to Frame Relay
Pseudowire Emulation Edge-to-Edge MIBs for Ethernet, Frame Relay, and ATM Services
RSVP Refresh Reduction and Reliable Messaging
New Hardware Features in Cisco IOS Release 12.2(28)SB
1-Port Enhanced ATM Port Adapter with Support for 8000 VCs
4-Port Half-Height Channelized T3 Line Card
4-Port OC-3/ATM Long-Reach Line Card
1000BASE-T GBIC Support for the Network Services Engine 100
CWDM GBIC Support for the Network Services Engine 100
CWDM SFP Support for the Network Processing Engine 100
CWDM SFP Support for the 2-Port Gigabit Ethernet SPA on the Cisco 7304 Router
New Software Features in Cisco IOS Release 12.2(28)SB
Any Transport over MPLS (AToM): Frame Relay over MPLS (FRoMPLS)
Attribute Screening for Access Requests
Autosense of MUX/SNAP Encapsulation and PPPoA/PPPoE on ATM PVCs
Bridged 1483 Encapsulated Traffic over ATM SVCs
Byte-Based Weighted Random Early Detection
CEF/dCEF - Cisco Express Forwarding
Configurable MAC Address for PPPoE
Define Interface Policy-Map AV Pairs AAA
Distributed Time-Based Access Lists
Dynamic ATM VP and VC Configuration Modification
Dynamic DNS Support for Cisco IOS Software
Dynamic Subscriber Bandwidth Selection
EIGRP MPLS VPN PE-CE Site of Origin (SoO)
Enabling OSPFv2 on an Interface Using the ip ospf area Command
Extended NAS-Port-Type and NAS-Port Support
Generic Routing Encapsulation (GRE) Tunnel Keepalive
Globalized Channelizations for SONET/SDH
Improved show commands for MLP-ATM LFI
Intelligent Service Gateway (ISG) Features
Interface Alias Long Name Support
IPv6 Access Services: DHCPv6 Prefix Delegation
IPv6 Features for the Cisco 10000 Series
In Service Software Upgrade (ISSU)
Layer 2 Local Switching: Frame Relay to Frame Relay
Local Template-Based ATM PVC Provisioning
Logging to Local Non-Volatile Storage (ATA Disk)
MLP LFI over ATM Configuration Scaling
MPLS Traffic Engineering Features
MQC Policy Map Support on Configured VC Range
Multilink Frame Relay (FRF.16.1) Variable Bandwidth Class Support
Multiple Action Policer for PXF
Multirouter Automatic Protection Switching (APS)
Nonstop Forwarding and Stateful Switchover Features
Offload Server Accounting Enhancement
Packet Classification Using the Frame Relay DLCI Number
Per-Packet Load Balancing (PPLB)
Per-User QoS via AAA Policy Name
Policer Enhancement: Multiple Actions
PPP MLP MRRU Negotiation Configuration
Pseudowire Emulation Edge-to-Edge MIBs for Ethernet Services
Pseudowire Emulation Edge-to-Edge MIBs for Ethernet and Frame Relay Services
QoS Features for the Cisco 7200 Series and Cisco 7301
QoS Features for the Cisco 10000 Series
Reserve Memory for Console Access
Route Processor Redundancy Plus (RPR+)
RSVP Refresh Reduction and Reliable Messaging
Secure Shell Version 2 Support
Three-level Hierarchical Policy Support in PXF
Turbo Access Control List Scalability Enhancements
UDI - Unique Device Identifier
UDP Forwarding Support of IP Redundancy Virtual Router Group (VRG)
Using 31-Bit Prefixes on IPv4 Point-to-Point Links
Virtual Template Interfaces Limit Expansion
VLANs over IP Unnumbered Subinterfaces
VPN Routing/Forwarding (VRF) CLI Command
XML Interface to Syslog Messages
Limitations and Restrictions in Cisco IOS Release 12.2(28)SB
High Availability Support for the Cisco 10000 Series
ISSU Restriction for the Cisco 10000 Series
Per Precedence WRED Statistics
RADIUS Attribute 31: PPPoX Calling Station ID
Scaling Limits for L2TP Tunnels on the Cisco 10000 Series
SNMP Version 1 BGP4-MIB Limitations
System Limits for Policy Maps on the Cisco 10000 Series
tunnel vrf Command Not Supported on the Cisco 10000 Series
Important Notes for Cisco IOS Release 12.2(28)SB
Tuning I/O Buffers for Nonstop Forwarding (NSF)/Stateful Switchover (SSO) Functionality
Upgrading PCI Port Adapter Carrier Card ROMmon for the Cisco 7304 Router
Open Caveats—Cisco IOS Release 12.2(28)SB2
Resolved Caveats—Cisco IOS Release 12.2(28)SB2
Resolved Caveats—Cisco IOS Release 12.2(28)SB1
Open Caveats—Cisco IOS Release 12.2(28)SB
Cisco IOS Software Documentation Set
Cisco IOS Release 12.2 Documentation Set Contents
Obtaining Documentation, Obtaining Support, and Security Guidelines
Cross-Platform Release Notes for Cisco IOS Release 12.2SB
August 8, 2007
Cisco IOS Release 12.2(28)SB2
OL-10903-01 Rev. C0
These release notes support Cisco IOS Release 12.2SB up to and including Cisco IOS Release 12.2(28)SB2. These release notes are updated as needed to describe new features, memory requirements, hardware support, software platform deferrals, and related documents.
Note
These release notes are for a special version of Cisco IOS Release 12.2(28)SB2 that includes support for the Cisco 7500 series.
Cisco IOS Release 12.2SB is tailored for service provider networks and large-scale enterprise networks. The main purposes of Release 12.2SB are the following:
•
•
•
For more information, see the "Introduction" section.
For a list of the software caveats that apply to Cisco IOS Release 12.2SB, see the "Caveats" section, the Caveats for Cisco IOS Release 12.2 document, and the "Caveats" section in the Cross-Platform Release Notes for Cisco IOS Release 12.2S. These documents are updated for every maintenance release and are located on Cisco.com.
Use these release notes with the Cross-Platform Release Notes for Cisco IOS Release 12.2 document and the Cross-Platform Release Notes for Cisco IOS Release 12.2S, both of which are located on Cisco.com.
We recommend that you view the field notices for this release to see if your software or hardware platforms are affected. If you have an account on Cisco.com, you can find field notices at http://www.cisco.com/warp/customer/tech_tips/index/fn.html. If you do not have a Cisco.com login account, you can find field notices at http://www.cisco.com/warp/public/tech_tips/index/fn.html.
Contents
•
•
Introduction
Cisco IOS Release 12.2SB is based on Cisco IOS Release 12.2(25)S and includes many features from Cisco IOS Release 12.2T.
For the Cisco 10000 series, Release 12.2SB supports select features from Release 12.2(25)S that include Multiprotocol Label Switching (MPLS) provider edge (PE) feature parity with Cisco IOS Release 12.0(27)S, along with greater scalability and feature enhancements.
For the Cisco 7200 series, Cisco 7301, and Cisco 7500 series, all features that are in Release 12.2(25)S are also in Release 12.2SB.
For the Cisco 7304, all features that are supported in Cisco IOS Release 12.2S, up to and including Release 12.2(25)S3, are also in Release 12.2SB.
Many of the features and the hardware that are supported in this software have been previously released to customers on other software releases.
For information on new features and Cisco IOS commands that are supported by Release 12.2SB, see the "New and Changed Information" section and the "Caveats" section.
Early Deployment Releases
These release notes describe the Cisco 7200 series routers, Cisco 7301 router, Cisco 7304 router, Cisco 7500 series, and Cisco 10000 series routers for Cisco IOS Release 12.2SB, which is an early deployment (ED) release based on Cisco IOS Release 12.2 and Release 12.2S. Early deployment releases contain fixes for software caveats and support for new Cisco hardware and software features. Table 1 shows the Cisco IOS Release 12.2SB early deployment releases for the above-mentioned platforms.
Table 1 Early Deployment Releases for the Cisco 7200 Series, Cisco 7301, Cisco 7304, Cisco 7500 series, and Cisco 10000 Series
12.2(28)SB2
Special Rebuild
See the "New Software Features in Cisco IOS Release 12.2(28)SB2" section.
See the New Hardware Features in Cisco IOS Release 12.2(28)SB2.
07/19/2006
12.2(28)SB1
Rebuild
No new software features.
No new hardware features.
05/11/2006
12.2(28)SB
Maintenance
See the "New Software Features in Cisco IOS Release 12.2(28)SB" section.
See the"New Hardware Features in Cisco IOS Release 12.2(28)SB" section.
03/20/2006
System Requirements
This section describes the system requirements for Cisco IOS Release 12.2SB and includes the following sections:
•
•
Memory Recommendations
Note
Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS and Catalyst OS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or by feature set (software image). Under the release section, you can compare Cisco IOS software releases side by side to display both the features unique to each software release and the features that the releases have in common.
Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
For frequently asked questions about Cisco Feature Navigator, see the FAQs at the following URL:
http://www.cisco.com/support/FeatureNav/FNFAQ.html
Determining Memory Recommendations for Software Images (Feature Sets)
To determine memory recommendations for software images (feature sets) in Cisco IOS Release 12.2SB, go to the Cisco Feature Navigator home page and perform the following steps.
Step 1
Step 2
Step 3
Note
Repeat this step to add additional features. A maximum of 20 features can be chosen for a single search.
Step 4
Step 5
Step 6
Step 7
Supported Hardware
This section describes the platforms, port adapters, and line cards that are supported in Cisco IOS Release 12.2SB and consists of the following subsections:
•
•
Supported Platforms
Cisco IOS Release 12.2SB supports the following platforms:
•
•
•
•
•
For detailed descriptions of the new hardware features, see the "New and Changed Information" section.
Table 2 describes the supported platforms for Cisco IOS Release 12.2SB and uses the following conventions:
•
•
Supported Port Adapters for the Cisco 7200 Series, Cisco 7301, Cisco 7304, Cisco 7500 Series
Table 3 lists the port adapters that are supported for the Cisco 7200 series routers, Cisco 7301 router, and Cisco 7500 series routers in Cisco IOS Release 12.2SB and uses the following conventions:
•
•
•
Table 3 Supported Port Adapters for the Cisco 7200 Series, Cisco 7301, Cisco 7304, and Cisco 7500 Series
Series
Router
Router
SeriesPA-A1-OC3SM
1-port ATM OC3 single mode (IR)
—
No
No
No
Yes
PA-A1-OC3MM
1-port ATM OC3 multimode
—
No
No
No
Yes
PA-A2-4T1C-OC3SM=
ATM CES, 4 T1 CES ports, 1 OC3 ATM SM port
—
Yes
No
No
No
PA-A2-4T1C-T3ATM=
ATM CES, 4 T1 CES ports, 1 T3 ATM port
—
Yes
No
No
No
PA-A2-4E1XC-OC3SM=
CES OC3, 4 E1 ports, 120 ohms
—
Yes
No
No
No
PA-A2-4E1XC-E3ATM=
CES E3/E1, 120 ohms
—
Yes
No
No
No
PA-A3-OC3MM
1-port ATM Enhanced OC3c/STM1 multimode
—
Yes
Yes
Yes
Yes
PA-A3-OC3SMI
1-port ATM Enhanced OC3c/STM1 single mode (IR)
—
Yes
Yes
Yes
Yes
PA-A3-OC3SML
1-port ATM Enhanced OC3c/STM1 single mode (LR)
—
Yes
Yes
Yes
Yes
PA-A3-OC12MM
1-port ATM Enhanced OC12/STM4 multimode
—
No
No
No
Yes
PA-A3-OC12SMI
1-port ATM Enhanced OC12/STM4 single mode (IR)
—
No
No
No
Yes
PA-A3-E3
1-port ATM Enhanced E3
—
Yes
Yes
Yes
Yes
PA-A3-T3
1-port ATM Enhanced DS3
—
Yes
Yes
Yes
Yes
PA-A3-8E1IMA
8-port ATM Inverse Mux E1, 120 ohms
—
Yes
Yes
Yes
Yes
PA-A3-8T1IMA
8-port ATM Inverse Mux T1
—
Yes
Yes
Yes
Yes
PA-A6-OC3MM
1-port ATM OC-3c/STM-1 multimode, enhanced
(28)
Yes
Yes
No
Yes
PA-A6-OC3SMI
1-port ATM OC-3c/STM-1 single-mode (IR), enhanced
(28)
Yes
Yes
No
Yes
PA-A6-OC3SML
1-port ATM OC-3c/STM-1 single-mode (LR), enhanced
(28)
Yes
Yes
No
Yes
PA-A6-T3
1-port ATM DS3, enhanced
(28)
Yes
Yes
No
Yes
PA-A6-E3
1-port ATM E3, enhanced
(28)
Yes
Yes
No
Yes
PA-4C-E=
1-port Enhanced ESCON Channel
—
Yes
No
No
No
PA-SRP-OC12MM=
DPT-OC12 multimode (Cisco 7200 series only)
—
Yes
No
No
No
PA-SRP-OC12SMI=
DPT-OC12 single mode (IR) (Cisco 7200 series only)
—
Yes
No
No
No
PA-SRP-OC12SML=
DPT-OC12 single mode (LR) (Cisco 7200 series only)
—
Yes
No
No
No
PA-SRP-OC12SMX=
DPT-OC12 single mode extended reach (Cisco 7200 series only)
—
Yes
No
No
No
SRPIP-OC12MM=
DPT-OC12 multimode (Cisco 7500 series only)
—
No
No
No
Yes
SRPIP-OC12SMI=
DPT-OC12 single mode (IR) (Cisco 7500 series only)
—
No
No
No
Yes
SRPIP-OC12SML=
DPT-OC12 single mode (LR) (Cisco 7500 series only)
—
No
No
No
Yes
SRPIP-OC12SMX=
DPT-OC12 single mode extended reach (Cisco 7500 series only)
—
No
No
No
Yes
PA-4E
4-port Ethernet 10BASE-T
—
Yes
Yes
Yes
Yes
PA-4E1G/75
4-port E1 G.703 Serial, 75 ohms/unbalanced
—
Yes
Yes
Yes
Yes
PA-4E1G/120
4-port E1 G.703 Serial, 120 ohms/balanced
—
Yes
Yes
Yes
Yes
PA-5EFL
5-port Ethernet 10BASE-FL
—
Yes
Yes
No
Yes
PA-8E
8-port Ethernet 10BASE-T
—
Yes
Yes
Yes
Yes
PA-FE-FX
1-port Fast Ethernet 100BASE-FX
—
Yes
Yes
Yes
Yes
PA-FE-TX
1-port Fast Ethernet 100BASE-TX
—
Yes
Yes
Yes
Yes
PA-2FE-FX
2-port Fast Ethernet 100BASE-FX
—
Yes
Yes
Yes
Yes
PA-2FE-TX
2-port Fast Ethernet 100BASE-TX
—
Yes
Yes
Yes
Yes
PA-GE
1-port Gigabit Ethernet
—
Yes
No
Yes
No
PA-F/FD-MM
1-port FDDI Full Duplex multimode
—
Yes2
No
No
Yes
PA-F/FD-SM
1-port FDDI Full Duplex single mode
—
Yes2
No
No
Yes
PA-H
1-port High-Speed Serial Interface (HSSI)
—
Yes
Yes
Yes
Yes
PA-2H
2-port High-Speed Serial Interface (HSSI)
—
Yes
Yes
Yes
Yes
PA-MC-T3
1-port multichannel T3
—
Yes
Yes
Yes
Yes
PA-MC-E3
1-port multichannel E3
—
Yes
Yes
Yes
Yes
PA-MC-2T3+
2-port multichannel T3
—
Yes
Yes
Yes
Yes
PA-MC-2T1
2-port multichannel T1, integrated CSU/DSUs
—
Yes
Yes
Yes
Yes
PA-MC-2E1/120
2-port multichannel E1, G.703 120-ohm interface
—
Yes
Yes
Yes
Yes
PA-MC-4T1
4-port multichannel T1, integrated CSU/DSUs
—
Yes
Yes
Yes
Yes
PA-MC-8T1
8-port multichannel T1, integrated CSU/DSUs
—
Yes
Yes
Yes
Yes
PA-MC-8E1/120
8-port multichannel E1, G.703 120-ohm interface
—
Yes
No
Yes
Yes
PA-MC-8TE1+
8-port multichannel T1/E1 8PRI
—
Yes
Yes
Yes
Yes
PA-MC-STM-1MM
1-port multichannel STM-1 multimode
—
Yes
Yes
Yes
Yes
PA-MC-STM-1SMI
1-port multichannel STM-1 single mode
—
Yes
Yes
Yes
Yes
PA-4B-U
4-port BRI, U Interface
—
Yes
Yes
No
No
PA-8B-S/T
8-port BRI, S/T Interface
—
Yes
Yes
No
No
SA-ENCRYPT=
Encryption Service Adapter
—
No
No
No
Yes
SA-ISA
Integrated Services Adapter for IPSec or MPPE encryption
—
Yes
No
No
No
SPA-4FE-7304
4-port 10/100 Fast Ethernet SPA
—
No
No
Yes
No
SPA-2GE-7304
2-port 10/100/1000 Gigabit Ethernet SPA
—
No
No
Yes
No
SPA-2XOC3-POS
2-port OC-3c/STM-1 POS SPA
—
No
No
Yes
No
SPA-4XOC3-POS
4-port OC-3c/STM-1 POS SPA
—
No
No
Yes
No
SPA-1OC12-POS
1-port OC-12c/STM-4 POS SPA
—
No
No
Yes
No
SPA-2XT3/E3
2-port T3/E3 Serial SPA
—
No
No
Yes
No
SPA-4XT3/E3
4-port T3/E3 Serial SPA
—
No
No
Yes
No
PA-POS-OC3MM
1-port Packet over SONET OC3c/STM1 multimode
—
Yes
Yes
Yes
Yes
PA-POS-OC3SMI
1-port Packet over SONET OC3c/STM1 single mode (IR)
—
Yes
Yes
Yes
Yes
PA-POS-OC3SML
1-port Packet over SONET OC3c/STM1 single mode (LR)
—
Yes
Yes
Yes
Yes
PA-POS-2OC3
2-port OC-3/STM-1 POS with APS
—
Yes
Yes
Yes
Yes
PA-4T+
4-port Serial, Enhanced
—
Yes
Yes
Yes
Yes
PA-8T-V35
8-port Serial, V.35
—
Yes
Yes
Yes
Yes
PA-8T-X21
8-port Serial, X.21
—
Yes
Yes
Yes
Yes
PA-8T-232
8-port Serial, 232
—
Yes
Yes
Yes
Yes
PA-T3
1-port T3 Serial, T3 DSUs
—
Yes
Yes
Yes
Yes
PA-T3+
1-port T3 Serial, Enhanced
—
Yes
Yes
Yes
Yes
PA-2T3
2-port T3 Serial, T3 DSUs
—
Yes
Yes
Yes
Yes
PA-2T3+
2-port T3 Serial, Enhanced
—
Yes
Yes
Yes
Yes
PA-E3
1-port E3 Serial, E3 DSUs
—
Yes
Yes
Yes
Yes
PA-2E3
2-port E3 Serial, E3 DSUs
—
Yes
Yes
Yes
Yes
PA-4R-DTR
4-port Dedicated Token Ring, 4/16Mbps, HDX/FDX
—
Yes
No
No
Yes
PA-MCX-2TE1=
2-port MIX-enabled multichannel T1/E1, CSU/DSU
—
Yes
No
No
No
PA-MCX-4TE1=
4-port MIX-enabled multichannel T1/E1, CSU/DSU
—
Yes
No
No
No
PA-MCX-8TE1-M=
8-port multichannel T1/E1, Signaling System 7 over IP (SS7oIP)
—
Yes
No
No
No
PA-MCX-8TE1=
8-port MIX-enabled multichannel T1/E1, CSU/DSU
—
Yes
No
No
No
PA-VXA-1TE1-24+
1-port T1/E1 Digital Voice, 24 Channels
—
Yes
No
No
Yes
PA-VXA-1TE1-30+
1-port T1/E1 Digital Voice, 30 Channels
—
Yes
No
No
Yes
PA-VXB-2TE1+
2-port T1/E1 moderate capacity, Enhanced
—
Yes
Yes
No
Yes
PA-VXC-2TE1+
2-port T1/E1 high capacity, Enhanced
—
Yes
Yes
No
Yes
1 For a spare product number, append an equal sign (=) to the product number. For a spare product number, append an equal sign (=) to the product number. If a product number is listed as a spare product in the table, that is, with an equal sign (=), it means that the product is only available as a spare product. For End-of-Sale (EOS) and End-of-Life (EOL) information about port adapters, refer to the Cisco product bulletins at the following locations:
Cisco 7200 series: http://www.cisco.com/en/US/products/hw/routers/ps341/prod_eol_notices_list.html
Cisco 7300 series: http://www.cisco.com/en/US/products/hw/routers/ps352/prod_eol_notices_list.html
Cisco 7400 series: http://www.cisco.com/en/US/products/hw/routers/ps354/prod_eol_notices_list.html
Cisco 7500 series: http://www.cisco.com/en/US/products/hw/routers/ps359/prod_eol_notices_list.html2 FDDI port adapters are supported on non-VXR routers.
For information about troubleshooting port adapters and about alerts, see the Cisco documents at the following location:
http://www.cisco.com/en/US/products/hw/modules/ps2033/
tsd_products_support_troubleshoot_and_alerts.htmlSupported Line Cards for the Cisco 10000 Series Routers
Table 4 lists the line cards that are supported for the Cisco 10000 series routers in Cisco IOS Release 12.2(28)SB and later releases. The number in the "In" column indicates the Cisco IOS 12.2SB release in which the line card was introduced. For example, (28) means that a line card was introduced in Cisco IOS Release 12.2(28)SB. If a cell in this column contains an em dash (—), support for the line card was inherited from other releases and was included in Cisco IOS Release 12.2(28)SB.
Table 4 Supported Line Cards for the Cisco 10000 Series Router
1-Port OC-12 ATM
ESR-1OC-12-ATM2
1-port OC-12 ATM
—
4-Port OC-3 ATM
ESR-4OC3-ATM-SM
4-port OC-3/STM-1 ATM, single mode
—
4-Port OC-3 ATM LR
ESR-4OC3-ATM-SM-LR
4-port OC-3/STM-1 ATM, long reach
(28)
8-Port E3/DS3 ATM
ESR-8E3/DS3-ATM
8-port E3/DS3 ATM
—
1-Port Channelized OC-12/STM-4
ESR-1COC-12/STM-4-
SMI31-port channelized OC-12/STM-4 (STS-12),
single mode, intermediate reach—
ESR-1COC-12/STM-4-
SML1-port channelized OC-12/STM-4 (STS-12),
single mode, long reach—
4-Port Channelized
STM-1/OC-3ESR-4OC3-ChSTM-1
/OC-34-port channelized OC-3/STM-1 SDH,
single mode—
4-Port Channelized T3 Half-Height
ESR-HH-4CT3
4-port channelized T3 half-height
(28)
6-Port Channelized T3
ESR-6CT3
6-port channelized T3
—
24-Port T1/E1
ESR-24CT1/E1
24-port channelized E1/T1
—
8-Port Unchannelized
E3/T3ESR-8E3/DS3
8-port clear channel E3/DS3 line card
—
1-Port GE
ESR-1GE
1-port Gigabit Ethernet
—
1-Port GE Half-Height
ESR-HH-1GE
1-port Gigabit Ethernet half-height
—
8-Port FE Half-Height
ESR-HH-8FE-TX
8-port Fast Ethernet half-height
—
Half-Height Carrier
ESR-HH-CARRIER
Full-length base carrier for half-height
line card—
1-Port OC-12/STM-4
POSESR-1OC-12/P-SMI
1-port OC-12/STS-12c/STM-4 POS/SDH,
single mode, intermediate reach—
ESR-1OC-12/P-SML
1-port OC-12/STS-12c/STM-4 POS,
single mode, long reach—
1-port OC-48/STM-16
POSESR1OC48/P/SRPSMS
1-port OC-48/STM-16 POS/SRP,
single mode, short reach—
ESR1OC48/P/SRPSML
1-port OC-48/STM-16 POS/SRP,
single mode, long reach—
6-Port OC-3c/STM-1
POSESR-6OC3/P-SMI
6-port OC-3c/STS-3c/STM-1 POS/SDH,
single mode, intermediate reach—
ESR-6OC3/P-SML
6-port OC-3c/STS-3c/STM-1 POS/SDH,
single mode, long reach—
1 For a spare product number, append an equal sign (=) to the product number. If a product number is listed as a spare product in the table, that is, with an equal sign (=), it means that the product is only available as a spare product. For End-of-Sale (EOS) and End-of-Life (EOL) information about line cards, refer to the Cisco product bulletins at the following location:
http://www.cisco.com/en/US/products/hw/routers/ps133/prod_eol_notices_list.html2 The old part number for this line card is ESR-1OC12ATM-SM.
3 The old part number for this line card is ESR-1COC12-SMI.
For information about troubleshooting line cards and about alerts, see the Cisco documents at the following location:
http://www.cisco.com/en/US/products/hw/routers/ps133/
tsd_products_support_troubleshoot_and_alerts.htmlDetermining the Software Version
To determine the version of Cisco IOS software that is running on your Cisco router, log in to the router and enter the show version EXEC command:
Router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 7200 Software (rsp-jsv-mz), Version 12.2(28)SB, EARLY DEPLOYMENT RELEASE SOFTWAREUpgrading to a New Software Release
For information about selecting a new Cisco IOS software release, see How to Choose a Cisco IOS Software Release at the following location:
http://www.cisco.com/warp/public/130/choosing_ios.shtml
For information about upgrading the Cisco 7200 series routers, Cisco 7301 router, Cisco 7304 router, Cisco 7500 series routers, and Cisco 10000 series routers, see the document at the following location:
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080094c07.shtml
In addition, for the Cisco 10000 series, see the Upgrading to Cisco IOS Release 12.2(28)SB on a Cisco 10000 Series Router document at the following location:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/upgrade/upgdsb.htm
For Cisco IOS upgrade ordering instructions, see the document at the following location:
http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/957_pp.htm
To choose a new Cisco IOS software release by comparing feature support or memory requirements, use Cisco Feature Navigator. Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS and Catalyst OS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or by feature set (software image). Under the release section, you can compare Cisco IOS software releases side by side to display both the features unique to each software release and the features that the releases have in common.
Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
To choose a new Cisco IOS software release based on information about defects that affect that software, use Bug Toolkit at the following URL:
http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl
Microcode Software
This section describes microcode software that is supported for the Cisco 7304 in Cisco IOS Release 12.2S and consists of the following subsections:
•
•
Bundled FPGAs for the Cisco 7304
This section provides information about the field-programmable gate array (FPGA) images for the Cisco 7304. These images apply only to the Cisco 7304.
If the versions of the FPGA images that are running on your Cisco 7304 do not match the versions that are bundled in the Cisco IOS software, we recommend that you update your FPGA images. For more details, see the Cisco 7304 FPGA Bundling and Update document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121ex/121ex10/
73fpga.htmBundled FPGAs for Cisco IOS Release 12.2(28)SB2
There are no new FPGA images for Cisco IOS Release 12.2(28)SB2. All Cisco IOS Release 12.2(28)SB2 software images for the Cisco 7304 support the bundled FPGAs that were released in Release 12.2(28)SB.
Bundled FPGAs for Cisco IOS Release 12.2(28)SB1
There are no new FPGA images for Cisco IOS Release 12.2(28)SB1. All Cisco IOS Release 12.2(28)SB1 software images for the Cisco 7304 support the bundled FPGAs that were released in Release 12.2(28)SB.
Bundled FPGAs for Cisco IOS Release 12.2(28)SB
All Cisco IOS Release 12.2(28)SB software images for the Cisco 7304 support the bundled FPGAs that are listed in Table 5.
Shared Port Adapter FPD Image Packages for the Cisco 7304
Field-programmable device (FPD) image packages are used to update shared port adapter (SPA) FPD images. If a discrepancy exists between an SPA FPD image and the Cisco IOS image that is running on the router, the SPA will be deactivated until this discrepancy is resolved. For additional information on FPDs, including the upgrade process, see the "Upgrading Field-Programmable Devices" section of the Cisco 7304 Modular Services Card and Shared Port Adapter Software Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7300/73mscspa/mscspasw/index.htm
Note
Shared Port Adapter FPD Image Package for Cisco IOS Release 12.2(28)SB2
The FPD image package that is used to upgrade SPAs on a router that runs Cisco IOS Release 12.2(28)SB2 is the c7304-fpd-pkg.122-28.SB2.pkg file. This SPA FPD image package file is accessible from the page where you downloaded your specific Cisco IOS image from the Software Center on Cisco.com. The content of this SPA FPD image package is the same as the content of the SPA FPD image package for Release 12.2(28)SB.
Shared Port Adapter FPD Image Package for Cisco IOS Release 12.2(28)SB1
The FPD image package that is used to upgrade SPAs on a router that runs Cisco IOS Release 12.2(28)SB1 is the c7304-fpd-pkg.122-28.SB1.pkg file. This SPA FPD image package file is accessible from the page where you downloaded your specific Cisco IOS image from the Software Center on Cisco.com. The content of this SPA FPD image package is the same as the content of the SPA FPD image package for Release 12.2(28)SB.
Shared Port Adapter FPD Image Package for Cisco IOS Release 12.2(28)SB
The FPD image package that is used to upgrade SPAs on a router that runs Cisco IOS Release 12.2(28)SB is the c7304-fpd-pkg.122-28.SB.pkg file. This SPA FPD image package file is accessible from the page where you downloaded your specific Cisco IOS image from the Software Center on Cisco.com.
Feature Support
Cisco IOS software is packaged in feature sets that consist of software images that support specific platforms. The feature sets available for a specific platform depend on which Cisco IOS software images are included in a release. Each feature set contains a specific set of Cisco IOS features.
Caution
Note
Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS and Catalyst OS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or by feature set (software image). Under the release section, you can compare Cisco IOS software releases side by side to display both the features unique to each software release and the features that the releases have in common.
Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
For frequently asked questions about Cisco Feature Navigator, see the FAQs at the following URL:
http://www.cisco.com/support/FeatureNav/FNFAQ.html
Determining Which Software Images (Feature Sets) Support a Specific Feature
To determine which software images (feature sets) in Cisco IOS Release 12.2SB support a specific feature, go to the Cisco Feature Navigator home page and perform the following steps.
Step 1
Step 2
Step 3
Note
Repeat this step to add additional features. A maximum of 20 features can be chosen for a single search.
Step 4
Step 5
Step 6
Step 7
Determining Which Features Are Supported in a Specific Software Image (Feature Set)
To determine which features are supported in a specific software image (feature set) in Cisco IOS Release 12.2SB, go to the Cisco Feature Navigator home page and perform the following steps.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
New and Changed Information
This section lists the new hardware and software features supported by Cisco IOS Release 12.2SB and contains the following subsections:
•
•
•
•
Note
Note
New Hardware Features in Cisco IOS Release 12.2(28)SB2
This section describes new and changed features in Cisco IOS Release 12.2(28)SB2. Some features may be new to Cisco IOS Release 12.2SB 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 12.2(28)SB2. 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.
Note
CWDM SFP for the 1-Port Gigabit Ethernet Half-Height Line Card
The 1-port Gigabit Ethernet half-height line card includes support for Coarse Wave Division Multiplexer (CWDM) Small Form-Factor Pluggable (SFP) laser optical transceiver modules. For more information, see the following Cisco CWDM GBIC and CWDM SFP Installation Note:
http://www.cisco.com/univercd/cc/td/doc/product/gbic_sfp/gbic_doc/78_15222.htm
New Software Features in Cisco IOS Release 12.2(28)SB2
This section describes new and changed features in Cisco IOS Release 12.2(28)SB2. Some features may be new to Cisco IOS Release 12.2SB 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 12.2(28)SB2. 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.
Note
Table 7 shows features that have never before been released in any public Cisco IOS software image for the Cisco 10000 series and that released for the first time for the Cisco 10000 series in Cisco IOS Release 12.2(28)SB2. Other features may be new for the Cisco 10000 series in Cisco IOS Release 12.2(28)SB2, but have been released before in other public Cisco IOS software images for the Cisco 10000 series, and are therefore not included in Table 7.
Table 7 New Features for the Cisco 10000 Series in Cisco IOS Release 12.2(28)SB2
MPLS VPN Half Duplex VRF with Dynamic and Static PE-CE Routing
Any Transport over MPLS (AToM): Sequencing Support
Platform: Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/
fsatom30.htmATM OAM Support for F5 Continuity Check
Platform: Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftoamcc.htm
BGP Support for NonStop Routing (NSR) with Stateful Switchover (SSO)
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbb_bnsr.htm
Distributed LFI/dQoS over Leased Lines
Platform: Cisco 7500 series
For detailed information about this feature, see the Distributed Link Fragmentation and Interleaving over Leased Lines document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122sb/28sb2/
28sb_lfi.htmEnhanced Fast Software Upgrade (eFSU)
Platform: Cisco 7500 series
For detailed information about this feature, see the Cisco IOS In Service Software Upgrade and Enhanced Fast Software Upgrade Processes document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122sb/28sb2/
sb_efsu.htm
Note
IEEE 802.1Q-in-Q VLAN Tag Termination
Platform: Cisco 10000 series
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_qinq.htm
L2VPN FR FECN/BECN Marking
Platform: Cisco 7500 series
For detailed information about this feature, see the BECN and FECN Marking for Frame Relay over MPLS document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/
fsfecn.htmL2VPN Pseudowire Switching
Platform: Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
fsstitch.htmLawful Intercept
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/application/pdf/en/us/guest/products/ps133/c1090/
ccmigration_09186a00804d8eef.pdfMPLS Traffic Engineering Features
Cisco IOS Release 12.2(28)SB2 introduces support for the following Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) features on the Cisco 10000 series.
Note
MPLS Diff-Serv-Aware Traffic Engineering (DS-TE)
Platform: Cisco 10000 series
For detailed information about this feature, see the MPLS Traffic Engineering—DiffServ Aware document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
12s_dste.htmMPLS Traffic Engineering (TE)
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/
fs23te.htmMPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for TE Tunnels
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
fsbandaj.htmMPLS Traffic Engineering (TE)—Configurable Path Calculation Metric for Tunnels
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
fsmetric.htmMPLS Traffic Engineering (TE)—Forwarding Adjacency
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/
fstefa_3.htmMPLS Traffic Engineering (TE)—Interarea Tunnels
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/
fsiarea3.htmMPLS Traffic Engineering (TE)—IP Explicit Address Exclusion
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftaddexc.htm
MPLS Traffic Engineering (TE) MIB
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
temib2.htmMPLS Traffic Engineering—Overload Avoidance Support for IS-IS
Platform: Cisco 10000 series
For detailed information about this feature, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
fsscen.htmMPLS Traffic Engineering (TE)—Scalability Enhancements
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
fsscen.htmMPLS Traffic Engineering (TE)—SNMP Notification Support
Platform: Cisco 10000 series
For detailed information about this feature, see the MPLS Traffic Engineering MIB document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
temib2.htmMPLS VPN Half-Duplex VRF with Dynamic and Static PE-CE Routing
Platform: Cisco 10000 series
For detailed information about this feature, see the MPLS VPN Half-Duplex VRF document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbhalf.htm
Multi-VRF Support (VRF Lite)
Platform: Cisco 7500 series
For detailed information about this feature (which is also known as the MPLS Multi-VRF (VRF-lite) feature), see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122sb/28sb2/
vrflitsb.htmNetFlow PXF Timers
Platform: Cisco 10000 series
For detailed information about this feature, see the Configuring NetFlow PXF Timers document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_npxft.htm
NSF/SSO: Layer 2 Local Switching Support for Ethernet to Ethernet VLAN Interworking
Platform: Cisco 7500 series
For detailed information about this feature, see the Layer 2 Local Switching document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/28sblcl.htm
NSF/SSO: Layer 2 Local Switching Support for Frame Relay to Frame Relay
Platform: Cisco 7500 series
For detailed information about this feature, see the Layer 2 Local Switching document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/28sblcl.htm
Pseudowire Emulation Edge-to-Edge MIBs for Ethernet, Frame Relay, and ATM Services
Platform: Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbpweatm.htm
RSVP Refresh Reduction and Reliable Messaging
Platform: Cisco 10000 series
Note
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/
fsrelmsg.htmNew Hardware Features in Cisco IOS Release 12.2(28)SB
This section describes new and changed features in Cisco IOS Release 12.2(28)SB. Some features may be new to Cisco IOS Release 12.2SB 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 12.2(28)SB. 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.
Note
1-Port Enhanced ATM Port Adapter with Support for 8000 VCs
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
Cisco IOS Release 12.2(28)SB adds support for the PA-A6 port adapters and support for 8000 virtual circuits (VCs) on the PA-A6 port adapters. The PA-A6 is a series of single-width, single-port, ATM port adapters. With advanced ATM features, the PA-A6 port adapters support broadband aggregation, WAN aggregation, and campus/MAN aggregation.
The following PA-A6 port adapters are supported:
•
•
•
•
•
For detailed information about these products, see the PA-A6 Port Adapter Installation and Configuration document:
http://www.cisco.com/univercd/cc/td/doc/product/core/7206/port_adp/atm_-pas/pa-a6/
index.htm4-Port Half-Height Channelized T3 Line Card
Platform: Cisco 10000 series
For detailed information about this product, see the following Cisco document:
http://www.cisco.com/en/US/products/hw/routers/ps133/
products_configuration_guide_book09186a00805b3798.html4-Port OC-3/ATM Long-Reach Line Card
Platform: Cisco 10000 series
For detailed information about this product, see the following Cisco document:
http://www.cisco.com/en/US/products/hw/routers/ps133/
products_configuration_guide_book09186a00805b3798.html1000BASE-T GBIC Support for the Network Services Engine 100
Platform: Cisco 7304
The 1000BASE-T GBIC (WS-G5483=) is supported on Gigabit Ethernet interfaces of the Network Services Engine 100 (NSE-100).
For detailed information about this product, see the following Cisco document:
http://www.cisco.com/en/US/products/hw/modules/ps872/
products_data_sheet09186a008014cb5e.htmlCWDM GBIC Support for the Network Services Engine 100
Platform: Cisco 7304
Support for the following Coarse Wave Division Multiplexer (CWDM) Gigabit Interface Converters (GBICs) is introduced on Gigabit Ethernet ports of the Network Service Engine 100 (NSE-100):
•
•
•
•
•
•
•
•
For detailed information about these products, see the following Cisco document:
http://www.cisco.com/en/US/products/hw/modules/ps4999/
products_data_sheet09186a00801a557c.htmlCWDM SFP Support for the Network Processing Engine 100
Platform: Cisco 7304
The following Coarse Wave Division Multiplexer (CWDM) Small Form-Factor Pluggable (SFP) laser optical transceiver modules are supported on Gigabit Ethernet ports of the Network Processing Engine 100 (NPE-G100):
•
•
•
•
•
•
•
•
For detailed information about these products, see the following Cisco document:
http://www.cisco.com/en/US/products/hw/modules/ps4999/
products_data_sheet09186a00801a557c.htmlCWDM SFP Support for the 2-Port Gigabit Ethernet SPA on the Cisco 7304 Router
Platform: Cisco 7304
The following Coarse Wave Division Multiplexer (CWDM) Small Form-Factor Pluggable (SFP) laser optical transceiver modules are supported on Gigabit Ethernet ports of the 2-port Gigabit Ethernet SPA (SPA-2GE-7304):
•
•
•
•
•
•
•
•
For detailed information about these products, see the following Cisco document:
http://www.cisco.com/en/US/products/hw/modules/ps4999/
products_data_sheet09186a00801a557c.htmlNew Software Features in Cisco IOS Release 12.2(28)SB
This section describes new and changed features in Cisco IOS Release 12.2(28)SB. Some features may be new to Cisco IOS Release 12.2SB 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 12.2(28)SB. 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.
Note
Table 8 shows features that have never before been released in any public Cisco IOS software image for the Cisco 10000 series and that released for the first time for the Cisco 10000 series in Cisco IOS Release 12.2(28)SB. Other features may be new for the Cisco 10000 series in Cisco IOS Release 12.2(28)SB, but have been released before in other public Cisco IOS software images for the Cisco 10000 series, and are therefore not included in Table 8.
Table 9 shows how select features for the Cisco 7304 are supported and uses the following conventions:
•
•
Table 9 Features Supported on the Cisco 7304 Engines and in the PXF Path
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Not applicable1
Yes
Yes
Not applicable1
Yes
Yes
Not applicable1
Yes
Yes
Not applicable1
No2
Yes
Yes
Not applicable3
1 This feature is supported on the NPE-G100 but not in the PXF path of the NPE-G100. Therefore, the PXF enhancement is not applicable to the NPE-G100.
2 Although this feature is not supported in the PXF path, this enhancement improve system memory utilization in the PXF path.
3 This feature does not apply to the PXF path.
AAA Features
Cisco IOS Release 12.2(28)SB introduces support for the following AAA features.
AAA CLI Stop Record Enhancement
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the Per VRF AAA document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftvrfaaa.htm
AAA Double Authentication Secured by Absolute Timeout
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gt_dasat.htm
AAA Per-User Scalability
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the Per VRF AAA document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftvrfaaa.htm
AAA-PPP-VPDN Non-Blocking
Platforms: Cisco 7200 series, Cisco 7301
Previously, Cisco IOS software created a statically configurable number of processes to authenticate calls. Each process 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 do not limit the rate of call handling.
ACL Default Direction
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftacldir.htm
Any Transport over MPLS (AToM): Frame Relay over MPLS (FRoMPLS)
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature for the Cisco 10000 series, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
ATM Features
Cisco IOS Release 12.2(28)SB introduces support for the following ATM features.
ATM Bulk VC Configuration
Platform: Cisco 10000 series
For detailed information about this feature, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
ATM Conditional Debug Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature (which is also known as the ATM Conditional debug/show Commands feature), see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/12satmdb.htm
ATM Multilink PPP Support on Multiple VCs
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftatmmlt.htm
ATM OAM Ping
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/
12atmpng.htmATM OAM Traffic Reduction
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/
atmoam.htmATM PVCs
Platform: Cisco 10000 series
The ATM line cards support the full range of virtual path identifier (VPI)/virtual channel identifier (VCI) pairs (unidirection only)—8-bit VPI range and 16 bit VCI range. Table 10 lists the maximum number of active virtual channels (VCs) supported on ATM line cards for Cisco IOS Release 12.2(28)SB.
Table 10 Active VCs on ATM Line Cards
per Port
per ModuleE3/DS3
4,096
32,7681
28,6722
OC-3
8,191
32,7643
28,6724
OC-12
16,384
16,384
16,384
1 For 32,768 VCs per module, 4096 VCs must be unshaped UBR VCs.
2 For 28,672 VBR, CBR, and shaped UBR VCs, no VCs can be in shaped VP tunnels. If VCs are in shaped VPs, the number of VBR, CBR, and shaped UBR VCs is 22,204.
3 For 32,764 VCs per module, 4096 VCs must be unshaped UBR VCs.
4 For 28,672 VBR, CBR, and shaped UBR VCs, no VCs can be in shaped VP tunnels. If VCs are in shaped VPs, the number of VBR, CBR, and shaped UBR VCs is 22,204.
You can configure the maximum number of VCs across the ports in any fashion, provided that you do not exceed the per-port maximum.
Although the maximum number of VBR, CBR, and shaped UBR VCs per E3/DS3 and OC-3 ATM line card is 28,672, the router supports a maximum of 22,204 VBR, CBR, and shaped UBR VCs per line card that you can place within virtual path (VP) tunnels. If you attempt to bring up more than 22,204 VCs in a configuration that includes VP tunnels and VCs (hierarchical traffic shaping configuration), the VCs might not assign traffic correctly or the VCs might not come up at all. Be sure to limit the number of configured VBR, CBR, and shaped UBR VCs on an ATM card to less than 22,204 VCs if you place the VCs in VP tunnels.
ATM PVC Range and Routed Bridge Encapsulation Subinterface Grouping
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/dtatmpvr.htm
ATM VC into VP Shaping
Platform: Cisco 10000 series
For detailed information about this feature, see the Cisco 10000 Series Router Quality of Service Configuration Guide:
http://www.cisco.com/en/US/products/hw/routers/ps133/
products_configuration_guide_book09186a00805b9497.htmlAttribute Screening for Access Requests
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123limit/123b/123b3/
gt_asfar.htmAutosense of MUX/SNAP Encapsulation and PPPoA/PPPoE on ATM PVCs
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122b/122b_15/
ftpauto2.htmBGP Features
Cisco IOS Release 12.2(28)SB introduces support for the following Border Gateway Protocol (BGP) features.
BGP 4 MIB Support for per-Peer Received Routes
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, which is also known as the BGP Received Routes MIB feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/
sbgprmib.htmBGP Convergence Optimization
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
BGP Convergence Optimization introduces a new algorithm for update generation that reduces the time that is required for Border Gateway Protocol (BGP) convergence. Neighbor update messages are optimized before they are forwarded to neighbors. Updates are optimized and forwarded based on peer groups and per-individual neighbors. This enhancement improves BGP convergence, router boot time, and transient memory usage. This enhancement is not user configurable.
Note
BGP Cost Community Support for EIGRP MPLS VPN PE-CE with Backdoor Links
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fsbgpcce.htm#wp1027129BGP Increased Support of Numbered AS-Path Access Lists to 500
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/ftiaaspa.htm
BGP Support for IP Prefix Import from a Global Table into a VRF Table
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fs_bgivt.htmBit Error Rate Testing (BERT)
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/
bert.htmBridged 1483 Encapsulated Traffic over ATM SVCs
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/ftbridge.htm
Byte-Based Weighted Random Early Detection
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/
fsbyte.htmCEF/dCEF - Cisco Express Forwarding
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature for the Cisco 10000 series, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
Clear IPC Statistics
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/ft_ipc.htm
Configurable MAC Address for PPPoE
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_11/
gt_cmppp.htmCrashinfo Support
Platform: Cisco 10000 series
The Crashinfo Support feature for the Cisco 10000 series 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 the Crashinfo Support feature, enter the exception crashinfo file device:filename global configuration command. 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, enter the exception crashinfo buffersize command. The default buffer size is 32 Kilobytes.
Define Interface Policy-Map AV Pairs AAA
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123limit/123x/123xi7/
123xiqos.htmDHCP Features
Cisco IOS Release 12.2(28)SB introduces support for the following DHCP features.
DHCP Accounting
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Address Allocation Using Option 82
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftrbeo82.htm
DHCP Client Dynamic Subnet Allocation API
Platforms: Cisco 7200 series, Cisco 7500 series
The DHCP Client Dynamic Subnet Allocation API feature is an application programming 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—Configurable DHCP Client
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Lease Limit per ATM RBE Unnumbered Interface
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP ODAP Server Support
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP On-Demand Address Pool Manager for Non-MPLS VPN Pools
Platform: Cisco 10000 series
For detailed information about this feature, see the following DHCP Server—On-Demand Address Pool Manager document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Option 82 Support for Routed Bridge Encapsulation
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Relay MPLS VPN Support
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Relay Subscriber Identifier Suboption
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Release and Renew CLI in EXEC Mode
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Server—On-Demand Address Pool Manager
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP Server—Option to Ignore All BOOTP Requests
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP—Static Mapping
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCP—Statically Configured Routes Using a DHCP Gateway
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdhcpsb.htm
DHCPv6 Prefix Delegation via AAA
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the "Prefix Delegation" section in the "Implementing ADSL and Deploying Dial Access for IPv6" chapter that is part of the Cisco IOS IPv6 Configuration Library:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_dial6.htm
DHCPv6 Relay Agent
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
A client locates a DHCP server by using a reserved, link-scoped multicast address. Therefore, it is a requirement for direct communication between the client and the server that the client and the server be attached to the same link. However, in some situations in which ease of management, economy, or scalability is a concern, it is desirable to allow a DHCP client to send a message to a DHCP server that is not connected to the same link. A DHCP relay agent, which may reside on the client's link, is used to relay messages between the client and the server. DHCP relay agent operation is transparent to the client.
For more information, see the Implementing Basic Connectivity for IPv6 chapter that is part of the Cisco IOS IPv6 Configuration Library:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_bconn.htm
Distributed Time-Based Access Lists
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftdistac.htm
Dialer CEF
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftdlrcef.htm
DNS Spoofing
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/gtdnsspf.htm
Dynamic ATM VP and VC Configuration Modification
Platform: Cisco 10000 series
The Dynamic ATM VP and VC Configuration Modification feature enables you to change the virtual circuit (VC) weight or virtual path (VP) shaping parameters without affecting the state of the VC or VP. In other words, the VC and VP remain up and operational (the VC or VP is not torn down at the segmentation and reassembly [SAR], and the session does not go down). The dynamic parameters include ATM VP parameters (peak cell rate [PCR] or cell delay variation tolerance [CDVT]) and VC parameters (weight, PCR, sustainable cell rate [SCR], maximum burst size [MBS], and CDVT). When you change the VC parameters or the VP rate, there can be a momentary change in the shaped rate of the VP, in which the rate at which cells are sent may be over or under the configured rate. The session stays up, and no data is lost.
The range of integer values that are supported by the weighting-value argument of the weight command is 5 to 255.
Dynamic DNS Support for Cisco IOS Software
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123limit/123y/123ya8/
gt_ddns.htmDynamic Subscriber Bandwidth Selection
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftdbs.htm
EIGRP MPLS VPN PE-CE Site of Origin (SoO)
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_8/
gtmvesoo.htmEmbedded Event Manager 2.1
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_14/
gteem21.htmEnabling OSPFv2 on an Interface Using the ip ospf area Command
Platforms: Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, which is also known as the Area Command in Interface Mode for OSPFv2 feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/
ospfarea.htmEnhanced Tracking Support
Platform: Cisco 10000 series
For detailed information about this feature, including Enhanced Object Tracking, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbaiptrk.htm
Entity/Environment Monitoring
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco documents:
•
http://www.cisco.com/en/US/products/hw/routers/ps341/
products_technical_reference_book09186a00805fee4b.html•
http://www.cisco.com/en/US/products/hw/routers/ps352/
products_technical_reference_book09186a00805fee95.htmlExtended NAS-Port-Type and NAS-Port Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/rd_naspt.htm
Frame Relay Features
Cisco IOS Release 12.2(28)SB introduced support for the following Frame Relay features.
Frame Relay Fast Restart
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120st/120st19/
19stfr72.htmFrame Relay MIB Enhancements
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftfrmibe.htm
Frame Relay—show and debug Command Enhancements
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series.
For detailed information about this feature, which is also known as the Frame Relay show Command and debug Command Enhancements feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/sbfrshow.htm
Frame Relay VC Bundling
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Frame Relay PVC Bundles with IP and MPLS QoS Support document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ft_frbnd.htm
Generic Routing Encapsulation (GRE) Tunnel Keepalive
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_gretk.htm
Globalized Channelizations for SONET/SDH
Platform: Cisco 10000 series
The Globalized Channelizations for SONET/SDH feature enables the Cisco 10000 series 1-port channelized OC-12 line card and 4-port channelized STM-1 line card to support the following globalized channelization modes:
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IEEE 802.1p Support
Platform: Cisco 10000 series
The IEEE's 802.1p standard now allows a range of traffic prioritization of Layer 2 frames from critical to non-critical through a frame priority tag, providing a higher quality of service (QoS) on high-speed LANs. Network managers can implement traffic prioritization through infrastructure device upgrades. IEEE 802.1p is a key enabler to QoS by enabling "Prioritized Ethernet" with up to eight priorities in Ethernet and Token Ring networks.
IGMP State Limit
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
The IGMP State Limit feature provides protection against denial of service attacks caused by IGMP packets. The new CLI introduced by this feature allows you to configure a limit on the number of IGMP states that results from IGMP, IGMP Version 3 lite, and URL Rendezvous Directory (URD) membership reports on a per-interface or global basis. Membership reports in excess of the configured limits will not be entered in the IGMP cache, and traffic for those excess membership reports will not be forwarded.
For more information, see the Customizing IGMP document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c/chap10/
mcbcigmp.htmIGMPv3
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the Customizing IGMP document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c/chap10/
mcbcigmp.htmImproved show commands for MLP-ATM LFI
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the Troubleshooting Enhancements for Multilink PPP over ATM Link Fragmentation and Interleaving document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/gttrbmlp.htm
Intelligent Service Gateway (ISG) Features
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series.
Cisco IOS Release 12.2(28)SB introduces support for the following Intelligent Service Gateway (ISG) features on the Cisco 7200 series, Cisco 7301, and Cisco 10000 series as explained in Table 11.
For detailed information about these features, see the Cisco IOS Intelligent Service Gateway Configuration Guide that is part of the Cisco IOS ISG Configuration Library:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/cg/isg_lib/index.htm
Interface Alias Long Name Support
Platform: Cisco 10000 series
For detailed information about this feature, see the following Interface Index Display and Interface Alias Long Name Support for SNMP document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ftshowif.htm
IP Features
Cisco IOS Release 12.2(28)SB introduced support the following IP features.
IPMROUTE-STD-MIB
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series, Cisco 10000 series
The IPMROUTE-STD-MIB, as defined in RFC 2932, is a module for 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 also 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.
IP Multicast Load Splitting Across Equal-Cost Paths
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the Load Splitting IP Multicast document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c/mcbsplit.htm
For detailed information about this feature for the Cisco 10000 series, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
IP SLAs - LSP Health Monitor
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/sbchmon.htm
IPv6 Access Services: DHCPv6 Prefix Delegation
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
DHCP for IPv6 can be used in environments to deliver stateless address assignment information. Stateless address assignment uses configuration parameters that do not require a server to maintain a dynamic state for individual clients, such as DNS server addresses and domain search list options.
For more information, see the Implementing Basic Connectivity for IPv6 document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/sa_bconn.htm
IPv6 Features for the Cisco 10000 Series
Platform: Cisco 10000 series
Cisco IOS Release 12.0(28)SB supports the IPv6 Hardware: PXF Accelerated for IPv6 Forwarding feature for the Cisco 10000 series, which includes support for the following IPv6 features:
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For more information about these IPv6 features, see the "Start Here: Cisco IOS Software Release Specifics for IPv6 Features" chapter of the Cisco IOS IPv6 Configuration Library:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/ipv6_c/ftipv6s.htm
ISDN Backup in MPLS Core
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/gtisdnbk.htm
In Service Software Upgrade (ISSU)
Platform: Cisco 10000 series
The In Service Software Upgrade (ISSU) feature includes support for the following features:
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For detailed information about these features, see the Cisco IOS In Service Software Upgrade Process document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_issu.htm
The ISSU feature includes support for the following MPLS features:
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For detailed information about these features, see the ISSU MPLS Clients document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/iscli28.htm
The ISSU feature is supported on the following line cards:
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L2TP and L2TPv3 Features
Cisco IOS Release 12.2(28)SB introduces support for the following L2TP and L2TPv3 features.
L2TP Congestion Avoidance
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbl2scca.htm
L2TP Disconnect Cause Information
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtl2disc.htm
L2TP Extended Failover
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbl2tpef.htm
L2TP Redirect
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbl2tpmr.htm
L2TP Security
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbl2tsec.htm
L2TP Tunnel Connection Speed Labeling
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbclabel.htm
L2TPv3 Control Message Hashing
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htmL2TPv3 Control Message Rate Limiting
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htmProtocol Demultiplexing for L2TPv3
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htmLayer 2 Local Switching
Platform: Cisco 10000 series
For detailed information about this feature, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
Layer 2 Local Switching: Frame Relay to Frame Relay
Platform: Cisco 10000 series
For detailed information about this feature, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
Layer 2 VPN Features
Cisco IOS Release 12.2(28)SB introduces support for the following Layer 2 VPN features.
L2VPN Pseudowire Redundancy
Platforms: Cisco 7403, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
Layer 2 VPN: Syslog, SNMP Trap and Show Command Enhancements for AToM and L2TPv3
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Layer 2 Tunnel Protocol Version 3 document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s31/
l2tpv31s.htmNSF/SSO: L2VPN Pseudowire Redundancy Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sudosso.htm
Local AAA Server
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_14/gt_laas.htm
Local Template-Based ATM PVC Provisioning
Platform: Cisco 10000 series
The Local Template-Based ATM PVC Provisioning feature supports permanent virtual circuit (PVC) autoprovisioning for an infinite range of virtual path identifier (VPI)/virtual channel identifier (VCI) combinations on an ATM interface. This feature enables ATM PVCs to be provisioned automatically as needed from a local configuration, which makes the provisioning of large numbers of digital subscriber line (DSL) subscribers easier, faster, and less prone to error. ATM PVC autoprovisioning can be configured on a PVC, an ATM PVC range, or a virtual circuit (VC) class. If a VC class that is configured with ATM PVC autoprovisioning is assigned to the main interface, all the PVCs on that main interface will be autoprovisioned; this configuration is sometimes called an infinite range.
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122b/122b_15/
ftpvcaut.htmLogging to Local Non-Volatile Storage (ATA Disk)
Platform: Cisco 10000 series
For detailed information about this feature, see the Syslog Writing to Flash document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/cs_sysls.htm
MLP LFI over ATM Configuration Scaling
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, which is also known as the Link Fragmentation and Interleaving for Frame Relay and ATM Virtual Circuits feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbamlatm.htm
MPLS Features
Cisco IOS Release 12.2(28)SB introduces support for the following Multiprotocol Label Switching (MPLS) and MPLS-related features.
MPLS (Multiprotocol Label Switching)
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature for the Cisco 10000 series, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
MPLS-Aware NetFlow
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sx_mnf.htm
MPLS Egress NetFlow Accounting
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/egrsbkb.htm
MPLS Embedded Management—High Capacity Counter
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
As of Cisco IOS Release 12.2(28)SB, the MPLS IF MIB has a 64-bit structure to ensure that high-capacity loads can be handled.
MPLS Embedded Management—LSP Ping/Traceroute and AToM VCCV
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/lsping28.htm
MPLS Label Distribution MIB: MPLS LDP Trap Enhancement
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/
fsvnmb25.htm#wp1027129MPLS Label Distribution Protocol (LDP)
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftldp13.htm
MPLS—LDP AutoConfiguration
Platform: Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/
fsldpaut.htmMPLS—LDP MD5 Global Configuration
Platform: Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_md5.htm
MPLS—LDP Session Protection
Platform: Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s30/
fssespro.htmMPLS—Multilink PPP Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/
gtmpmlp.htmMPLS QoS—DiffServ Tunnel Mode Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/
ftdtmode.htmMPLS HA Features
Cisco IOS Release 12.2(28)SB introduces support for the following Multiprotocol Label Switching (MPLS) High Availability (HA) features for the Cisco 10000 series.
Note
NSF/SSO: MPLS LDP and LDP Graceful Restart
Platform: Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fsldpgr.htmNSF/SSO: MPLS VPN
Platform: Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fsvpngr.htmMPLS High Availability
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fshaov.htmCommand Changes in Relation to MPLS HA
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For command changes in relation to Multiprotocol Label Switching (MPLS) high availability (HA), see the following documents:
•
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fscefcmd.htm•
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s25/
fscmdha.htmMPLS Traffic Engineering Features
Cisco IOS Release 12.2(28)SB introduces support for the following Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) features:
MPLS Diff-Serv-Aware Traffic Engineering (DS-TE)
Platforms: 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the MPLS Traffic Engineering—DiffServ Aware document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
12s_dste.htmMPLS Traffic Engineering (TE)
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s23/
fs23te.htmMPLS Traffic Engineering (TE)—Automatic Bandwidth Adjustment for TE Tunnels
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
fsbandaj.htmMPLS Traffic Engineering (TE)—Configurable Path Calculation Metric for Tunnels
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
fsmetric.htmMPLS Traffic Engineering (TE)—Forwarding Adjacency
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/
fstefa_3.htmMPLS Traffic Engineering (TE)—Interarea Tunnels
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s18/
fsiarea3.htmMPLS Traffic Engineering (TE)—IP Explicit Address Exclusion
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftaddexc.htm
MPLS Traffic Engineering (TE) MIB
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
temib2.htmMPLS Traffic Engineering (TE)—Scalability Enhancements
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
fsscen.htmMPLS Traffic Engineering (TE)—SNMP Notification Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the MPLS Traffic Engineering MIB document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
temib2.htmMPLS VPN Features
Cisco IOS Release 12.2(28)SB introduces support for the following Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) features.
MPLS VPN—Carrier Supporting Carrier
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbb2scsc.htm
MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbbcsc13.htm
MPLS VPN—eiBGP Multipath Loadbalancing Enhancements
Platform: Cisco 7304, Cisco 10000 series
In this Cisco IOS release, the MPLS-VPN eiBGP Multipath Loadbalancing feature has been enhanced to support up to 96,000 VPN routes in a scenario in which there are four BGP paths and one IGP path to each BGP peer. In previous Cisco IOS releases, up to 48,000 VPN routes were supported.
It is important to note that the maximum number of load-balanced paths used per route decreases from 16 to 8 as a result of this feature. The number of load-balanced paths per route is determined using a round-robin algorithm, but the round-robin algorithm now can only use up to 8 paths instead of 16, like it could previously.
This is a functional enhancement that introduces no new configuration.
MPLS VPN—Explicit Null Label Support with BGP IPv4 Label Session
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/
gsxnlbsp.htmMPLS VPN—Half Duplex VRF (HDVRF) Support with Static Routing
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbhalf.htm
MPLS VPN—Inter-AS—IPv4 BGP Label Distribution
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbb_smlp.htm
MPLS VPN—Inter-Autonomous System Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t5/interas.htm
MPLS VPN—MIB Support: MPLS VPN Trap Enhancement
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the MPLS VPN—MIB Support document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s25/
fsvnmb25.htm#wp1027129MPLS VPN—Show Running VRF
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_svrf.htm
MPLS VPN—VPN-Aware LDP MIB
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the MPLS Label Distribution Protocol MIB document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/
ldpmib13.htm#wp1015327MPLS VPN—VRF-Select for PXF
Platform: Cisco 7304
VRF-Select is supported in the PXF processing path for a Cisco 7304.
For information about MPLS VPN VRF-Select, see the MPLS VPN: VRF Selection Based on Source IP Address document:
http://www.cisco.com/en/US/products/sw/iosswrel/ps5012/
products_feature_guide09186a0080173d55.htmlFor additional information about this feature and all other features in the PXF-processing path, including restrictions, see the Cisco 7304 Troubleshooting and Configuration Notes document:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7300/trouble/1270note.htm#wp65935
Multicast-VPN: Multicast Support for MPLS VPN
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature (which is also known as the Multicast VPN—IP Multicast Support for MPLS VPNs feature), see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbb_mvpn.htm
MQC Policy Map Support on Configured VC Range
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
The MQC Policy Map Support on Configured VC Range feature extends policy map functionality to simplify the configuration of ranges of ATM VCs. Using the service-policy command, this feature allows you to apply a QoS service policy to a range of VCs.
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/28sbvrng.htm
Multilink Frame Relay (FRF.16.1) Variable Bandwidth Class Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Multilink Frame Relay (FRF.16.1) document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/
fs_mfr.htmMultiple Action Policer for PXF
Platform: Cisco 7304
The Multiple Action Policer feature further extends the functionality of the Cisco IOS Traffic Policing feature (a single-rate policer feature). The Traffic Policing feature is a traffic policing mechanism that allows you to control the maximum rate of traffic sent or received on an interface. Both of these traffic policing mechanisms mark packets as conforming to, exceeding, or violating a specified rate. After a packet is marked, you can specify an action to be taken on the packet based on that marking.
With the Traffic Policing feature, you can specify only one conform action, one exceed action, and one violate action. Now with the Multiple Action Policer feature, you can specify multiple conform, exceed, and violate actions for the marked packets.
The Multiple Action Policer feature is introduced in the PXF processing path for the first time. For additional information about this feature and all other features in the PXF-processing path, including restrictions, see the Cisco 7304 Troubleshooting and Configuration Notes document:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7300/trouble/1270note.htm#wp65935
Multirouter Automatic Protection Switching (APS)
Platform: Cisco 10000 series
For detailed information about this feature, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
NetFlow MPLS Label Export
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sx_pal.htm
Nonstop Forwarding and Stateful Switchover Features
Nonstop Forwarding
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
Cisco IOS Release 12.2(28)SB supports the following Nonstop Forwarding (NSF) features:
•
•
•
•
•
For detailed information about these features, see the Cisco Nonstop Forwarding document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s20/
fsnsf20s.htmStateful Switchover
Platforms: Cisco 7304, Cisco 7500 series, Cisco 10000 series
Cisco IOS Release 12.2(28)SB supports the following Stateful Switchover (SSO) features:
•
Note
•
•
•
•
•
For detailed information about these features with the exception of the SSO - Multilink PPP (MLP) feature, see the Stateful Switchover document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s20/
fssso20s.htmFor detailed information about the SSO - Multilink PPP (MLP) feature, see the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
Offload Server Accounting Enhancement
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftoffact.htm
OSPF ABR Type 3 LSA Filtering
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftabrt3f.htm
Packet Classification Using the Frame Relay DLCI Number
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/
ftdlc26i.htmpeer pool backup Command
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the Peer Pool Backup document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtpeerpl.htm
Per-Packet Load Balancing (PPLB)
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s21/
pplb.htmPer-User QoS via AAA Policy Name
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/ft_puq.htm
Per VRF AAA
Platform: Cisco 10000 series
For detailed information about this feature, see the Per VRF AAA document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftvrfaaa.htm
PIM Multicast Scalability
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
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.
Policer Enhancement: Multiple Actions
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/
fsmu26s.htmPost-Switchover Core Dump
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
coredump.htmPPP MLP MRRU Negotiation Configuration
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_7/
gtmpmrru.htmPPPoE Features
Cisco IOS Release 12.2(28)SB introduces support for the following PPPoE features.
PPPoA/PPPoE Autosense for ATM PVCs
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftp_auto.htm
PPPoE Circuit-ID Tag Processing
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbecidtg.htm
PPPoE over Gigabit Ethernet Interface
Platform: Cisco 7200 series, Cisco 7301, Cisco 10000 series
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.
PPPoE Relay
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/
gtpppoer.htmPPPoE Service Selection
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gtpoess.htm
PPPoE Session Limit
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftppoesl.htm
PPPoE Session Limit per NAS Port
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122b/
122b_15/12b_nas.htmPPPoE Session Recovery After Reload
Platforms: Cisco 7200 series, Cisco 7301 Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/
gtppprec.htmPseudowire Emulation Edge-to-Edge MIBs for Ethernet Services
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbpweatm.htm
Pseudowire Emulation Edge-to-Edge MIBs for Ethernet and Frame Relay Services
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbpweatm.htm
QoS Features for the Cisco 7200 Series and Cisco 7301
Cisco IOS Release 12.2(28)SB supports the following QoS features for the Cisco 7200 series and Cisco 7301.
QoS: ATM Cell-Based Policer
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fscbp.htmQoS: ATM-CLP and Layer 2 CoS-Based WRED
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
12swred.htmQoS: CBQoSMIB Parity Across Cisco IOS Release 12.0S, 12.2SB, and 12.3T
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
Several MIB objects have been added to existing tables, and a new table has been added to the Class-Based Quality of Service (QoS) MIB (CBQoSMIB). These additions to the CBQoSMIB provide parity of the MIB across three specific Cisco IOS Releases—Cisco IOS Release 12.0S, 12.2SB, and 12.3T. As a result of these additions and revisions, the CBQoSMIB now supports the same features across all three of these platforms.
The CBQoSMIB now supports the following Cisco IOS features:
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The QoS: ATM Cell-Based Policer feature allows you to configure traffic policing for ATM cells. This feature allows you to specify traffic policing in cells, bytes, or percentage of bandwidth.
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/fscbp.htm•
The QoS: ATM-CLP and Layer 2 CoS-Based WRED feature extends the functionality of the Cisco Weighted Random Early Detection (WRED) software. With the QoS: ATM-CLP and Layer 2 CoS-Based WRED feature, WRED can take into account the Layer 2 class of service (CoS) value of a packet and the ATM cell loss priority (CLP) of a packet when calculating the drop probability of network traffic.
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/12swred.htm•
The QoS: Color-Aware Policer feature enables a "color-aware" method of traffic policing. This feature allows you to police traffic according to the color classification of a packet that is based on packet-matching criteria defined for two user-specified traffic classes: the conform-color class and the exceed-color class. These two traffic classes are created using the conform-color command, and the metering rates are defined using the police command.
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s26/12s_cap.htm•
This feature allows you to configure bandwidth as a percentage within low latency queuing (LLQ).
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/12sllqpc.htm•
The QoS: Percentage-Based Policing feature allows you to configure traffic policing on the basis of a percentage of bandwidth available on the interface. This feature also allows you to specify the committed burst (bc) size and the excess burst (be) size (used for configuring traffic policing) in milliseconds (ms). Configuring traffic policing in this manner enables you to use the same policy map for multiple interfaces with differing amounts of bandwidth.
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/12spctpg.htm•
The QoS: Percentage-Based Shaping feature allows you to configure traffic policing and traffic shaping on the basis of a percentage of bandwidth available on the interface. This feature also allows you to specify the committed (conform) burst (bc) size and the excess (peak) burst (be) size (used for configuring traffic shaping) in milliseconds (ms). Configuring traffic shaping in this manner enables you to use the same policy map for multiple interfaces with differing amounts of bandwidth.
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/12spctsg.htm•
The QoS: Time-Based Thresholds for WRED and Queue Limit feature allows you to specify the Weighted Random Early Detection (WRED) minimum and maximum thresholds or the queue limit threshold in milliseconds (ms). Previously, these thresholds could only be specified in packets or bytes. Now, all three units of measure are available. Once the threshold limits are configured in a policy map, the policy map can be used on multiple interfaces, including those with different amounts of bandwidth.
For more information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/12swrdql.htmThe following additional changes were made to the MIB tables:
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For more information about the Cisco IOS set commands, see the Cisco command reference publications for the Cisco IOS release that you are using.
For a list of the specific MIB objects added, see the CISCO-CLASS-BASED-QOS-MIB-CAPABILITY.html file at the following URL:
http://tools.cisco.com/Support/SNMP/do/BrowseMIB.do?local=en&mibName=
CISCO-CLASS-BASED-QOS-MIB-CAPABILITYFor more information about the preceding CBQoSMIB and the MIB objects and tables, and 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
QoS: Color-Aware Policer
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s26/
12s_cap.htmQoS: Frame Relay QoS Hierarchical Queueing Framework Support
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_frhqf.htm
QoS: Match on ATM CLP
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
12smcatm.htmQoS: Percentage-Based Policing
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
12spctpg.htmQoS: Percentage-Based Shaping
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/
120s28/12spctsg.htmQoS: Percentage-Based and Time-Based Policing Parameters
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
12spbtbp.htmQoS: Per-Session Shaping and Queuing on LNS
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbsbpssq.htm
QoS Features for the Cisco 10000 Series
Cisco IOS Release 12.2(28)SB supports the following quality of service (QoS) features for the Cisco 10000 series:
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In addition to the Cisco 10000 series, the following features are also supported on the Cisco 7200 series, Cisco 7301, and Cisco 7304, and Cisco 7500 series:
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For information about all features that are mentioned in this section, see the Cisco 10000 Series Router Quality of Service Configuration Guide:
http://www.cisco.com/en/US/products/hw/routers/ps133/
products_configuration_guide_book09186a00805b9497.htmlIn addition, Cisco IOS Release 12.2(28)SB supports the following QoS features for the Cisco 10000 series.
Modular QoS CLI (MQC)-Based Frame Relay Traffic Shaping
Platform: Cisco 10000 series
The Modular QoS CLI (MQC)-based Frame Relay Traffic Shaping feature provides users with the ability to configure Frame Relay Traffic Shaping (FRTS) by using MQC commands.
QoS: Broadband Aggregation Enhancements, Phase 1
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbbbrs1a.htm
QoS: Enhanced Show Commands for Active Policies
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_acpm.htm
RADIUS Features
Cisco IOS Release 12.2(28)SB introduces support for the following RADIUS features.
Framed-Route in RADIUS Accounting
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt_fra22.htm
RADIUS NAS-IP-Address Configurability
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123limit/123b/123b3/
gt_siara.htmRADIUS Push for MOD CLI Policies
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the Define Interface Policy-Map AV Pairs AAA document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123limit/123x/123xi7/
123xiqos.htmRADIUS Server Load Balancing
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7403, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbrdldbl.htm
RADIUS Server Reorder on Failure
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123_1/gt_rsrof.htm
radius-server source-port Command
Platform: Cisco 10000 series
The radius-server source-ports extended command enabled you to configure the NAS to use 200 ports in the range from 21645 to 21844 as the source ports for sending out RADIUS requests. With 200 source ports, up to 256*200 authentication and accounting requests can be outstanding at one time. During peak call volume, typically when a router first boots or when an interface flaps, the extra source ports allow sessions to recover more quickly on large-scale aggregation platforms.
To return to the default setting, in which ports 1645 and 1646 are used as the source ports for RADIUS requests, use the no form of this command.
For more information, see the Cisco IOS Security Command Reference, Release 12.3 document:
http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/
products_command_reference_book09186a008017cf42.htmlRADIUS Timeout Set During Pre-Authentication
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/ftattr27.htm
RADIUS Tunnel Preference for Load Balancing and Fail-Over
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbradlbf.htm
RADIUS Attributes
Cisco IOS Release 12.2(28)SB introduces support for the following RADIUS attributes.
Connect-Info RADIUS Attribute 77
Platform: Cisco 10000 series
The Connect-Info RADIUS Attribute 77 feature introduces support for RADIUS attribute 77 (Connect-Info), which provides information about connection speeds, modulation, and compression for modem dial-in connections via RADIUS accounting "start" and "stop" records.
When the NAS sends attribute 77 in accounting "start" and "stop" records, you can measure—across the platform—the connect rates. That is, attribute 77 allows you to record "transmit" speed (the speed at which the NAS modem sends information) and "receive" speed (the speed at which the NAS receives information). These modem speeds for user sessions allow you to determine whether user modem connections renegotiate to lower speeds shortly into a session. If the transmit and receive speeds are different from each other, attribute 77 will report both speeds, which allows you to establish the modem connection speeds that customers gets from their session.
RADIUS Attribute 5 (NAS-Port) Format Specified on a Per-Server Group Level
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_14/ra5f.htm
RADIUS Attribute 52 and 53 Gigaword Support
Platform: Cisco 10000 series
The RADIUS Attribute 52 and 53 Gigaword Support feature introduces support for attribute 52 (Acct-Input-Gigawords) and attribute 53 (Acct-Output-Gigawords). Attribute 52 keeps track of the number of times that 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 accurately account for and bill for usage.
RADIUS Attribute 77 for DSL
Platform: Cisco 10000 series
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 class name 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
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbrad_82.htm
RADIUS Attribute 91 Encrypted and Tagged VSA Support
Platform: Cisco 10000 series
For detailed information about this feature, see the Encrypted and Tagged VSA Support for RADIUS Attribute 91 section in the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122relnt/6400/
64_24b6.htm#115840RADIUS Attribute Screening
Platform: Cisco 10000 series
For detailed information about this feature, which is also known as the RADIUS Attribute Value Screening feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftras.htm
Reserve Memory for Console Access
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s22/
ftresmem.htmRoute Processor Redundancy Plus (RPR+)
Platforms: Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the Stateful Switchover document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s20/
fssso20s.htmRSVP Refresh Reduction and Reliable Messaging
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s29/
fsrelmsg.htmSecure Shell Version 2 Support
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, including the Secure Shell SSH Version 2 Client Support feature, also known as the SSHv2 feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/gt_ssh2.htm
show Command Redirect
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/
ftshowre.htmSticky IP
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, which is also known as the RADIUS Attribute 8 (Framed-IP-Address) in Access Requests feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t11/radattr8.htm
Subscriber Service Switch
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbsss.htm
TCP MSS Adjustment
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ft_admss.htm
Template ACL/12-Bit ACE
Platform: Cisco 10000 series
For detailed information about this feature, see "Chapter 19, Configuring Template ACLs" in the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/index.htm
Three-level Hierarchical Policy Support in PXF
Platform: Cisco 7304
The Modular QoS CLI (MQC) enables users to configure hierarchical policy maps, in which a grandparent policy uses a parent policy, and a parent policy uses a child policy. Support for all three levels of hierarchy was previously not available on the Cisco 7304 router, which used to support two levels of hierarchy. This feature is available in the PXF-processing path.
This feature is the addition of a third level of hierarchy within the MQC. It does not introduce any new commands. For information on configuring the MQC, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt8/
qcfmcli2.htmFor additional information about this feature and all other features in the PXF-processing path, including restrictions, see the Cisco 7304 Troubleshooting and Configuration Notes document:
http://www.cisco.com/univercd/cc/td/doc/product/core/cis7300/trouble/1270note.htm#wp65935
Turbo Access Control List Scalability Enhancements
Platform: Cisco 7304
In previous Cisco IOS releases, the ability of Turbo Access Control Lists to control PXF traffic could be limited. When the Turbo ACL classification tables grew large because of substantially-sized configurations and certain traffic patterns, all traffic that required ACL classification was punted to the Route Processor because the Turbo ACL table sizes exceeded the amount of available PXF memory.
This feature improves Turbo ACL scalability and enables support for large ACL tables.
This is a functional enhancement that introduces no new configuration.
UDI - Unique Device Identifier
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304, Cisco 7500 series, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/
gtpepudi.htmUDP Forwarding Support of IP Redundancy Virtual Router Group (VRG)
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/ftudpvrg.htm
Using 31-Bit Prefixes on IPv4 Point-to-Point Links
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t2/ft31addr.htm
VBR - NRT Oversubscription
Platform: Cisco 10000 series
For detailed information about this feature, see the Cisco 10000 Series Router Quality of Service Configuration Guide:
http://www.cisco.com/en/US/products/hw/routers/ps133/
products_configuration_guide_book09186a00805b9497.htmlVirtual Sub-Interface
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the Configuration Enhancements for Broadband Scalability document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftbbenh.htm
Virtual Template Interfaces Limit Expansion
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sb_vtle.htm
VLAN ID Rewrite
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7500 series
For detailed information about this feature, see the Any Transport over MPLS document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s28/
fsatom28.htmVLANs over IP Unnumbered Subinterfaces
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_4/
gtunvlan.htmVPDN Features
Cisco IOS Release 12.2(28)SB introduces support for the following VPDN features.
Accounting of VPDN Disconnect Cause
Platforms: Cisco 7200 series, Cisco 7301
In the past, when a Layer 2 Tunneling Protocol (L2TP) or Layer 2 Forwarding (L2F) session failed or disconnected, the network access server (NAS) and Home GateWay (HGW) reported a very generic disconnect-cause code, such as "LOST CARRIER." These generic codes did not provide enough detailed information for accounting and debugging purposes. The Accounting of VPDN Disconnect Cause feature adds eight new disconnect-cause codes that 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 "RADIUS Vendor-Specific Attributes and RADIUS Disconnect-Cause Attribute Values" appendix of the Cisco IOS Security Configuration Guide, Release 12.2:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/
products_configuration_guide_chapter09186a00801fd174.htmlRFC-2867 Tunnel Accounting
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the RFC-2867 RADIUS Tunnel Accounting document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbradtac.htm
Shell-Based Authentication of VPDN Users
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbexvpnt.htm
Timer and Retry Enhancements for L2TP and L2F
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbretreh.htm
Tunnel Authentication via Radius on LNS
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the Tunnel Authentication via RADIUS on Tunnel Terminator document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbtunaut.htm
VPDN Default Group Template
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbdevpdn.htm
VPDN Group Session Limiting
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbvpdngs.htm
VPDN Multihop by DNIS
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbvmhopd.htm
VPN MIB Enhancements for per-VRF Session Counting
Platforms: Cisco 7200 series, Cisco 7301
An extension has been added to the virtual private dialup network (VPDN) CISCO-VPDN-MGMT-MIB that returns the total number of active sessions for each VPDN template. For customers that associate a VPDN template to each VPN routing and forwarding (VRF) instance, this MIB extension provides a way to monitor session usage per VRF.
Service providers can terminate sessions from multiple customer accounts on the same L2TP network server (LNS). Sharing of the LNS is done by creating one VRF per customer. Session limits on VPDN templates and VPDN groups are configured to control the allocation of sessions among customers and among users within the same customer account. A VPDN template is associated with each VRF, and its session limit restricts the total number of sessions for a customer account. Within that account, users may be assigned to different VPDN groups as their access requirements dictate. Session limits on VPDN groups further control the allocation of customer sessions among VPDN users. In such a setup, the service provider must use Simple Network Management Protocol (SNMP) to retrieve the total number of active sessions per customer to monitor their usage on the LNS.
Prior to the introduction of this MIB enhancement, only the total number of sessions on the LNS across all customer accounts could be retrieved through SNMP. This enhancement extends the CISCO-VPDN-MGMT-MIB to include a read-only table of VPDN template entries, with each entry reporting the number of active sessions across all VPDN groups that are associated with that template. The table entries can be accessed individually by using GET requests or consecutively using repeated GET-NEXT requests.
VPDN Session Disconnect AAA Attribute
Platforms: Cisco 7200 series, Cisco 7301, Cisco 10000 series
The VPDN Session Disconnect AAA Attribute feature adds support for a new vendor-specific attribute (VSA) to be included in accounting stop records. The VSA provides information about the reason for the session disconnect and the identity of the device that initiated the disconnection. This feature introduces support for the accounting keyword of the vpdn-logging command in Cisco IOS Release 12.2(28)SB, and is enabled by entering the vpdn-logging accounting command and keyword.
VRF-Aware VPDN Tunnels
Platforms: Cisco 7200 series, Cisco 7301
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/sbvpdnmh.htm
VPN Routing/Forwarding (VRF) CLI Command
Platform: Cisco 10000 series
The Virtual Private Network (VPN) routing/forwarding (VRF) command enables you to enter comments about your VRF configuration.
description description string
no description
The following output is from a configuration example:
Router(config)#ip vrf V4
Router(config-vrf)# ?
IP VPN Routing/Forwarding instance configuration commands:
default Set a command to its defaults
description VRF specific description
exit Exit from VRF configuration mode
export VRF export
import VRF import
maximum Set a limit
no Negate a command or set its defaults
rd Specify Route Distinguisher
route-target Specify Target VPN Extended Communities
Router(config-vrf)#desc
Router(config-vrf)#description ?
LINE Up to 80 characters describing this VRF
Router(config-vrf)#description This Is My 4th VRF
Router(config-vrf)#end
Router#sh ru | beg V4
ip vrf V4
description This Is My 4th VRF
rd 1:406
route-target export 1:400
route-target import 1:400Warm Reload
Platforms: Cisco 7200 series, Cisco 7301, Cisco 7304
The Warm Reload feature enables you to reload your routers without reading images from storage. That is, the Cisco IOS image reboots without ROM monitor mode (ROMMON) intervention by restoring the read-write data from a previously saved copy in the RAM and by starting execution without either copying the image from flash to RAM or self-decompressing the image. Thus, the overall availability of your system improves because the time to reboot your router is significantly reduced.
For additional information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123t/123t_2/
gtwrmrbt.htmXML Interface to Syslog Messages
Platform: Cisco 10000 series
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t15/ftxmlsys.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
Limitations and Restrictions
The following sections contain information about limitations and restrictions in Cisco IOS Release 12.2SB that can apply to the Cisco 7200 series routers, Cisco 7301 router, and Cisco 10000 series routers.
Limitations and Restrictions in Cisco IOS Release 12.2(28)SB
This section describes limitations and restrictions in Cisco IOS Release 12.2(28)SB and later releases.
High Availability Support for the Cisco 10000 Series
In Cisco IOS Release 12.2(28)SB, the Cisco 10000 series supports Route Processor Redundancy Plus (RPR+), Stateful Switchover (SSO), and In Service Software Upgrade (ISSU). However for broadband aggregation features, the Cisco 10000 series supports RPR+ only.
ISSU Restriction for the Cisco 10000 Series
The In Service Software Upgrade (ISSU) feature for the Cisco 10000 series is not supported for MPLS VPN—Inter-Autonomous System (Inter-AS) configurations.
Per Precedence WRED Statistics
In the output of the show policy-map interface command, the Tail Drops counter indicates the number of packets dropped because the average queue length exceeded the maximum threshold for the given precedence. However, under burst conditions, it is possible that packets can be dropped because the queue is full. These packets are not counted as Tail Drops. The number of packets that are dropped under burst conditions when the queue is full are counted as Output Queue Drops.
RADIUS Attribute 31: PPPoX Calling Station ID
In Cisco IOS Release 12.2(28)SB, the Cisco 10000 series does not support the RADIUS Attribute 31: PPPoX Calling Station ID feature.
Scaling Limits for L2TP Tunnels on the Cisco 10000 Series
For information about scaling limits for L2TP tunnels on the Cisco 10000 series, see the "Scaling Enhancements" section in the "Scalability and Performance" chapter of the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide:
http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/swconfig/cfggdes/bba/
scaling.htm#wp1030846SNMP Version 1 BGP4-MIB Limitations
You may notice incorrect BGP trap OID output when you use 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 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.
System Limits for Policy Maps on the Cisco 10000 Series
The maximum number of classes supported per policy map on a Cisco 10000 series in Cisco IOS Release 12.2(28)SB is 64. The maximum number of policy maps supported per system is 4096.
tunnel vrf Command Not Supported on the Cisco 10000 Series
The Cisco 10000 series does not support the tunnel vrf vrf-name command in Cisco IOS Release 12.2(28)SB. Therefore, you cannot configure a tunnel for which both the source address and the destination address are located in a VPN routing/forwarding (VRF) instance, for example, when a tunnel is established between a customer edge (CE) router and a provider edge (PE) router. All tunnel source and destination addresses must be located in the global routing table.
The Cisco 10000 series does support a configuration in which the IP address of the tunnel itself is located in a VRF instance, for example, when the tunnel extends a VRF instance from one PE router to another PE router.
Important Notes
The following sections contain important notes about Cisco IOS Release 12.2SB that can apply to the Cisco 7200 series routers, Cisco 7301 router, and Cisco 10000 series routers.
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/kobayashi/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/warp/customer/cc/general/bulletin/software/general/1654_pp.htm
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Important Notes for Cisco IOS Release 12.2(28)SB
This section describes important issues that you should be aware of for Cisco IOS Release 12.2(28)SB and later releases.
MPLS MTU Command Change
The behavior of the mpls mtu command has changed in Cisco IOS Release 12.2(28)SB and later releases. You cannot set the MPLS MTU value larger than the interface MTU value. This prevents problems such as dropped packets when MPLS MTU value settings are larger than interface MTU values. Cisco IOS software allows the MPLS MTU value to be higher than the interface MTU value only for interfaces that have a default interface MTU value of 1580 or less. For more information, see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sbc27/newmtu.htm
Tuning I/O Buffers for Nonstop Forwarding (NSF)/Stateful Switchover (SSO) Functionality
For proper Nonstop Forwarding (NSF)/Stateful Switchover (SSO) functionality in scaled configurations, we recommend that you tune the number of I/O buffers on the Cisco 10000 series. (The default I/O buffer settings are good settings for standard configurations.) When NSF/SSO functionality is enabled, tune the I/O buffers by entering the following commands:
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For more information about buffer tuning, see the Buffer Tuning for all Cisco Routers document:
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00800a7b80.shtml
If you need assistance with the buffer tuning process, call your support team.
Upgrading PCI Port Adapter Carrier Card ROMmon for the Cisco 7304 Router
Beginning in Cisco IOS Release 12.2(28)SB, the PCI Port Adapter Carrier Card (7300-CC-PA) requires a one-time ROMmon upgrade to function. If this upgrade is not performed, the PCI Port Adapter Carrier Card with the incompatible ROMmon will be deactivated until the PCI Port Adapter Carrier Card ROMmon upgrade is performed.
The upgraded ROMmon image is bundled with the Cisco IOS software image; no additional images need to be downloaded to perform the upgrade. The upgrade can be performed by answering a prompt that will appear when certain processes, including the Cisco IOS bootup process, recognize that the PA-CC ROMmon requires an upgrade. Other methods of upgrading PA-CC ROMmon exist.
For additional information on this process, see the Upgrading PCI Port Adapter Carrier Card ROMmon document:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121ex/121ex10/
paccrom.htmCaveats
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 this section.
Because Cisco IOS Release 12.2SB is based on Cisco IOS Release 12.2, many caveats that apply to Cisco IOS Release 12.2 also apply to Cisco IOS Release 12.2SB. For information on severity 1 and 2 caveats in Cisco IOS Release 12.2, see the Caveats for Cisco IOS Release 12.2 document located on Cisco.com.
In this section, the following information is provided for each caveat:
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Note
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
This section consists of the following subsections:
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Open Caveats—Cisco IOS Release 12.2(28)SB2
This section describes possibly unexpected behavior by Cisco IOS Release 12.2(28)SB2. All the caveats listed in this section are open in Cisco IOS Release 12.2(28)SB2.
Basic System Services
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Symptoms: The standby RSP reloads because of a synchronization error during the boot process or after a switchover has occurred.
Conditions: This symptom is observed on a Cisco 7500 series that is configured with redundant RSPs and occurs only when the scheduler allocate command is enabled.
Workaround: There is no workaround.
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Symptoms: A Cisco 7500 series may log the following error message even if no VIP is installed in slot 0:
%IPC_RSP_CBUS-3-NOHWQ: Hardware queue for card at slot 0 not foundConditions: This symptom is observed after a crash of another VIP has occurred. Sometimes the symptom occurs when a VIP is installed in slot 0 but most of the time there is no VIP in slot 0 when the symptom occurs.
Workaround: There is no workaround.
Interfaces and Bridging
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Symptoms: After an RPR+ switchover has occurred, an "ALIGN-3-SPURIOUS" error message and tracebacks are generated on a Cisco 7500 series.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.2SB and that is configured with a PA-A3 port adapter that is installed in a VIP.
Workaround: There is no workaround.
Miscellaneous
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Symptoms: When an SSO switchover occurs less than 10 minutes after the router has been reloaded or a preceding SSO switchover has occurred, the following error message and a traceback are generated:
%FIB-4-FIBNULLIDB: Missing idb for fibidb Tunnel0.Configuration: This symptom is observed on a Cisco router that is configured for MVPN.
Workaround: Wait at least 10 minutes after the router has been reloaded or a preceding SSO switchover has occurred before initiating an SSO switchover.
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Symptoms: The standby RP may reload unexpectedly because of a "Create OIR sync process failure," an "HA-IPC error," or both.
Conditions: This symptom is observed on a Cisco 7500 series that is configured for HA redundancy and occurs when Cybus errors are detected during an OIR.
Workaround: There is no workaround.
Wide-Area Networking
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Symptoms: A PE router may generate the following error message and tracebacks, the line protocol of the interface may go down, and ultimately all VCs may go down:
%LINK-4-TOOBIG: Interface POS6/0, Output packet size of 7949 bytes too big
- Traceback= 60721900 60529988 6052AED4 6076CD6C 611D2B44 611D23C0 611D4FE8 611D4CF8 611D4DE8Conditions: This symptom is observed on a Cisco router that functions as a PE router, that is configured with a large number of VCs, and that has the frame-relay lmi-type cisco command enabled.
Workaround: When large number of VCs are configured, do not enter the frame-relay lmi-type cisco command. Rather, enter the frame-relay lmi-type ansi or frame-relay lmi-type q933a command.
Further Problem Description: The "cisco" Local Management Interface (LMI) type does not support FRF1.2 Annex A (LMI segmentation). LMI types "ansi" and "q933a" do support FRF1.2 Annex A. When a large number of VC is configured on an interface, the status of all VCs does not fit into one LMI STATUS message. Therefore, in this situation, LMI segmentation is required.
Resolved Caveats—Cisco IOS Release 12.2(28)SB2
Cisco IOS Release 12.2(28)SB2 is a rebuild release for Cisco IOS Release 12.2(28)SB. The caveats in this section are resolved in Cisco IOS Release 12.2(28)SB2 but may be open in previous Cisco IOS releases.
Basic System Services
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Symptoms: A large latency may occur when packets are forwarded by a router.
Conditions: This symptom is observed on a Cisco router when a DoS attack is launched from another router towards a POS interface of the Cisco router.
Workaround: There is no workaround. Although the symptom causes performance degradation, it does not cause loss of functionality.
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Symptoms: Without configuring any command related to Kerberos other than a Kerberos password command, a configuration synchronization failure may occur because of a PRC mismatch.
Conditions: This symptom is observed when you boot a Cisco router that is configured for AAA.
Workaround: There is no workaround.
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A vulnerability exists in the IOS HTTP server in which HTML code inserted into dynamically generated output, such as the output from a show buffers command, will be passed to the browser requesting the page. This HTML code could be interpreted by the client browser and potentially execute malicious commands against the device or other possible cross-site scripting attacks. Successful exploitation of this vulnerability requires that a user browse a page containing dynamic content in which HTML commands have been injected.
Cisco will be making free software available to address this vulnerability for affected customers. There are workarounds available to mitigate the effects of the vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20051201-http.shtml
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Symptoms: When you enter the clear subscriber session all command while traffic is being processed, the CPU usage of the router increases to 99 percent and sessions go down gradually. At the same time, the router automatically reinitiates sessions, and "%SSSMGR-3-MEMORY_LOW" and "%IDMGR-3-INVALID_ID:" error messages are generated. Eventually, the router generates "%TCP-6-NOBUFF:" and "%SYS-2-MALLOCFAIL" errors messages, and either resets all its interfaces or reloads.
Conditions: This symptom is observed on a Cisco 10000 series that runs 16,000 PTA sessions with ISG features and 16,000 plain L2TP sessions. On all sessions, stateless traffic is being processed. The symptom is not specific to a Cisco 10000 series and may occur on other platforms that function in a similar configuration.
Workaround: Do not clear all sessions at once via the clear subscriber session all command.
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Symptoms: When you enter the enable privileged EXEC command, an "Access Denied" message is generated.
Conditions: This symptom is observed on a Cisco router when you have configured AAA authentication and when the enable password global configuration command is configured.
Workaround: Configure the password for the enable password global configuration command to be no more than two characters.
Alternate Workaround: Remove the enable password global configuration command from the startup configuration.
Miscellaneous
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Symptoms: Spurious memory accesses occur on a Cisco 7200 series and ALIGN-3-SPURIOUS error messages are generated.
Conditions: This symptom is observed on a Cisco 7200 series that processes traffic through a serial interface.
Workaround: There is no workaround.
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Symptoms: A router reloads unexpectedly when the show policy interface EXEC command is entered.
Conditions: This symptom is observed on a Cisco router when two users are connected to the router and simultaneously enter the show policy interface EXEC command.
Workaround: Ensure that only one user at a time enters the command.
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Symptoms: A router may crash while displaying the output of the show ip pim mdt bgp command.
Conditions: This symptom is observed when withdraws for a MDT source group are received by PIM from BGP while you enter the show ip pim mdt bgp command.
Workaround: There is no workaround. To reduce the chance of the router crashing, change the screen-length argument in the terminal length screen-length command to 0. Doing so prevents the router from pausing between multiple output screens. (The default of the screen-length argument is 24.)
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Symptoms: A traffic class is deleted even when there is traffic that matches the ACL for the traffic class.
Conditions: This symptom is observed when a subscriber session is configured with a traffic class that is configured with a Layer 4 redirect feature and idle timeout.
Workaround: There is no workaround.
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Symptoms: The following error message may be generated when you configure a police statement in a policy map:
Maximum rate for the policer is 0, conform action is dropConditions: This symptom is observed on a Cisco router that functions in a L2VPN configuration with QoS features.
Workaround: There is no workaround.
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Symptoms: A PRE crashes when you enter the set cos command for a HQoS parent policy map that is applied to an egress interface.
Conditions: This symptom is observed on a Cisco 10000 series and occurs whether or not the router processes traffic.
Workaround: Do not enter the set cos command for a HQoS parent policy map that is applied to an egress interface.
Further Documentation: The above-mentioned configuration is not supported on the Cisco 10000 series.
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Symptoms: When a T3/E3 Serial SPA is configured in Kentrox mode with a small bandwidth between 22 kbps and 250 kbps, either in T3 or E3 mode, the firmware miscalculates the bandwidth allocation and allows up to 24M of traffic to pass through.
Conditions: This symptom is observed on a Cisco 7304 and a Cisco 12000 series.
Workaround: Do not configure such a small bandwidth when the T3/E3 Serial SPA is configured in Kentrox mode. The minimal bandwidth on a T3/E3 Serial SPA that is configured in Kentrox mode is either 1500 kbps in T3 mode or 1000 kbps in E3 mode.
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Symptoms: When you remove and re-insert an MSC-100 card in which one or two SPAs are installed, the SPAs may become disabled for 10 to 12 minutes, after which they recover automatically.
Conditions: This symptom is observed on a Cisco 7304 when you perform either a physical OIR or a soft-OIR by entering the hw-module slot slot-number stop command followed by the hw-module slot slot-number start command. The symptom occurs only when the time between the removal and the re-insertion is 2 to 3 seconds.
Workaround: Do not re-insert the MSC-100 card too quickly after you have removed it. Wait at least 10 seconds before you re-insert the card.
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Symptoms: A line card may crash when you attempt to remove the child policy from the HQoS parent.
Conditions: This symptom is observed on a Cisco router that functions as a PE router when the line card has an interface that is configured as follows:
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Workaround: There is no workaround.
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Symptoms: A 4-port OC-3 ATM line card may not perform an APS switchover when a signal degrade (SD) or signal fail (SF) condition is present.
Conditions: This symptom is observed on a Cisco 10000 series when bit errors occur on the on the 4-port OC-3 ATM line card.
Workaround: There is no workaround.
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Symptoms: An interface of a T3/E3 serial SPA passes traffic even though the output of the show controller command shows that there is a "Loss of Frame" alarm. When you enter the shutdown interface configuration command followed by the no shutdown interface configuration command on the interface of the SPA, the alarm is not cleared.
Conditions: This symptom is observed on a Cisco platform that is configured with a T3/E3 serial SPA.
Workaround: Enter the shutdown interface configuration command followed by the no shutdown interface configuration command on the interface at the remote end.
Further Problem Description: The symptom does not affect proper operation of the platform or the traffic. However, the incorrect alarm status may affect network management utilities.
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Symptoms: Control plane traffic may be dropped from a multilink interface.
Conditions: This symptom is observed only when the multilink interface is oversubscribed and does not occur under normal traffic conditions.
Workaround: Reduce the traffic rate.
Alternate Workaround: Apply some type of queueing mechanism on the interface.
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Symptoms: On a Cisco 7500 router, the console of the active RSP may hang.
Conditions: This symptom is observed when the router functions in RPR mode and when you attempt to access the standby RSP file system from the console of the active RSP, for example, by entering the write memory command or the dir slavedisk0: command.
Note that the symptom is not specific to the Cisco 7500 series and may also occur on other platforms.
Workaround: There is no workaround.
Further Problem Description: Normal operation of the router is not affected, but the console becomes inaccessible.
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Symptoms: When a Turbo ACL classification table grows beyond a certain size, a memory allocation failure may occur or the router may crash.
If the router runs Cisco IOS Release 12.1E or 12.3, memory corruption may occur, causing the router to crash. If the router runs Cisco IOS Release 12.2S, an error message similar to the following may appear during a Turbo ACL compilation, the compilation will fail, and a recompilation is forced:
%SYS-2-CHUNKBADELESIZE: Chunk element size is more than 64k for TACL Block -Process= "TurboACL", ipl= 0, pid= 82These symptoms do not occur because of an out-of-memory condition.
Conditions: This symptom is observed on a Cisco router that is configured for Turbo ACL. The Cisco 10000 series is not affected.
Workaround: Monitor the output of the show access-lists compiled command and force the Turbo ACL tables to be cleared if a table is at risk of growing large enough to trigger the symptoms.
The tables that have significant sizes are the first and third tables shown next to "L1:" and the first table shown next to "L2:". When the number after the slash for one of these tables is greater than 16384 for the "L1" tables or greater than 32768 for the "L2" table, the table is already too large and the symptom may occur any moment.
When the number is in the range from 10924 to 16384 inclusive for the "L1" tables or the range from 21846 to 32768 inclusive for the "L2" tables, the table size will be too large on the next expansion. An expansion occurs when the number to the left of the slash reaches 90 percent of the value to the right of the slash. When the value to the left of the slash approaches 90 percent of the value to the right, enter the no access-list compiled command followed by the access-list compiled command to disable and re-enable Turbo ACL. Doing so causes the tables to be cleared and, therefore, delay the expansion. This workaround may be impractical when there is a high rate of incoming packets and when entries are added frequently to the tables.
Alternative Workaround: Disable Turbo ACL by entering the no access-list compiled command.
Note that neither of these workarounds are supported on a Cisco 7304 that is configured with an NSE-100: there is no workaround for this platform.
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Symptoms: A Cisco 7304 may crash because of a bus error during normal operation when a external flash card is present.
Conditions: This symptom is observed on a Cisco 7304 that has an NPE-G100 and that runs Cisco IOS Release 12.2(20)S4 or Release 12.2(20)S8. The symptom may also occur in other releases.
Workaround: Do not use an external flash card. Rather, use an internal flash card.
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Symptoms: An RP crashes during BGP convergence when MVPNs are configured.
Conditions: This symptom is observed on a Cisco router after a duplicate BGP MDT extended community message is received that specifies a different Route Descriptor (RD) for an MDT that already exists for the specified MDT source and group address.
Workaround: There is no workaround.
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Symptoms: A switch or router may crash while processing a longest match lookup in the CEF table.
Conditions: This symptom is observed on a Cisco platform when a packet is punted because of an exception such as the occurrence of an ICMP redirect message while a longest match lookup is performed in the CEF table.
Workaround: Disable ICMP redirect messages by entering the no ip redirects interface configuration command on all interfaces of the router.
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Symptoms: All on-demand VCs may become stuck in the inactive state because of insufficient bandwidth on one ATM interface.
Conditions: This symptom is observed on a Cisco 10000 series when the creation of a VC fails because there are no more VCCIs, a line card failure occurs, or a toaster failure occurs. Each of these situations cause the ATM bandwidth to be depleted, and, in turn, prevent bandwidth from being available for any other ATM subinterfaces.
Workaround: There is no workaround.
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Symptoms: A virtual-access subinterface may not forward any traffic.
Conditions: This symptom is observed on a Cisco router with a virtual-access application that causes virtual-access subinterface to be created.
Workaround: There is no workaround.
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Symptoms: The output rate counters for a member link of a multilink interface do not increment when you look at the output of the show interfaces command.
Conditions: This symptom is observed on a Cisco 10000 series when packets are properly delivered through the member link of the multilink interface.
Workaround: Look at the PXF counters in the output of the show pxf cpu queue multilink interface or show pxf cpu subblock multilink interface commands.
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Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features:
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Cisco has made free software available to address these vulnerabilities for affected customers. Fixed Cisco IOS software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities mentioned in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from disabling the protocol or feature itself.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml.
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Symptoms: The mpls l2transport route command may be rejected as an invalid input.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.2(27)SBC or Release 12.2(28)SB.
Workaround: There is no workaround.
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Symptoms: When you configure OAM on an ATM subinterface in an AToM configuration, the ATM subinterface goes down.
Conditions: This symptom is observed on a Cisco 7304 that has a NSE-100 and that functions as a PE router in an MPLS backbone.
Workaround: There is no workaround. Note that the symptom does not occur when you disable the PXF engine.
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Symptoms: A router that is configured with a multilink bundle may reload unexpectedly with the following error message:
%ALIGN-1-FATAL: Illegal access to a low addressConditions: This symptom is observed on a Cisco router when you attempt to remove a service policy from a multilink interface.
Workaround: There is no workaround.
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Symptoms: The output of the show policy-map interface command shows the output queue packets and bytes counters as zero.
Conditions: This symptom is observed on a Cisco 10000 series on queues for which a policer is applied.
Workaround: Use the policer's counters in the output of the show policy-map interface command to determine the number of forwarded and dropped packets and bytes for the queue.
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Symptoms: A ping does not pass through a Fast Ethernet interface that functions in AToM port mode.
Conditions: This symptom is observed on a Cisco 7304 that is configured with an NSE-100 and that has the xconnect interface configuration command enabled on the interface of a 1-port Fast Ethernet port adapter (PA-FE) that is installed in a port adapter carrier card (7300-CC-PA).
Workaround: Enter the shutdown interface configuration command followed by the no shutdown interface configuration command on the affected interface.
Alternate Workaround: Enter the shutdown interface configuration command, the xconnect interface configuration command, and then the no shutdown interface configuration command on the affected interface.
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Symptoms: MLP traffic fails during a PRE failover of the protect router.
Conditions: This symptom is observed on a Cisco 10000 series when a PRE failover occurs on the protect router because of an MR-APS cable break failover from the protect router to the working router.
Workaround: If the active controller is brought up after the MR-APS failover, manually reverse APS.
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Symptoms: A Cisco 7304 that is configured with an NPE-G100 processor and ATM VCs may reload unexpectedly.
Conditions: This symptom is observed when a hierarchical policy on an ATM VC has the shape average command enabled.
Workaround: Do not use a hierarchical policy on an ATM VC.
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Processing a specially crafted IPv6 Type 0 Routing header can crash a device running Cisco IOS software. This vulnerability does not affect IPv6 Type 2 Routing header which is used in mobile IPv6. IPv6 is not enabled by default in Cisco IOS.
Cisco has made free software available to address this vulnerability for affected customers.
There are workarounds available to mitigate the effects of the vulnerability. The workaround depends on if Mobile IPv6 is used and what version on Cisco IOS is being currently used.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070124-IOS-IPv6.shtml.
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Symptoms: A ping may fail when packets pass from an MPLS VPN into a GRE tunnel.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100, that functions as a PE router, and that is connect to the MPLS core via a serial interface.
Possible Workaround: Do not use a serial interface to connect the PE router to the MPLS core. Rather, use another type of interface.
Further Problem Description: The symptom occurs because the tunnel adjacency is not complete in the PXF engine, preventing packets from being correctly punted and the adjacency from becoming complete.
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Symptoms: The output of the show policy-map interface command shows incorrect statistics for a DSCP-based WRED policy. Also, when the class-map parameters are dynamically changed, the WRED statistics are lost.
Conditions: These symptoms are observed on a Cisco 7304 that has an NSE-100.
Workaround: There is no workaround.
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Symptoms: After you have configured ingress NetFlow on an interface, the output of the show ip cache verbose flow command may show incorrect values in the "Active" seconds column.
Conditions: This symptom is observed on a Cisco 7304 that runs Cisco IOS Release 12.2(20)S9, Release 12.2(20)S10, or Release 12.2(25)S8 when the ip flow ingress command is configured on an interface. The symptom may also occur in other releases.
Workaround: There is no workaround.
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Symptoms: The output of the show ip cache flow command, may shows some flows with a size of 4294M, which is the maximum size that can fit in a 32-bit value (2^32). Note that you can view the flows more easily in the output of the show ip cache flow | i M|Pkts command.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs Cisco IOS Release 12.2(25)S7. The symptom may occur in other releases.
Workaround: There is no workaround.
Further Problem Description: The symptom is of a cosmetic nature. Proper operation of the router is not affected.
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Symptoms: The PXF engine on a Cisco 7304 that functions as a PE router may crash when traffic passes from the MPLS core to a CE router.
Conditions: This symptom is observed when the traffic from the MPLS core is de-aggregated on the PE router into CE-facing interfaces that are configured into a VRF and that perform IP load-sharing and occurs while the PXF engine is active on the PE router.
Workaround: Disable IP-load-sharing on any interfaces that are configured into a VRF, such as the CE-facing interfaces.
Alternate Workaround: Disable PXF packet-processing on the PE router.
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This caveat consists of two symptoms, two conditions, and two workarounds:
1.
Configuring this shaping class will impact guarantees in other classes under this policy-map
Condition 1: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs Cisco IOS Release 12.2(27)SBC2 when a hierarchical QoS policy is configured in the following way and when the shape rate is higher than the CIR rate:
policy-map child-qos
class user-defined-class
priority
police cir cir-rate
bc Bc be Be
conform-action transmit
exceed-action droppolicy-map parent-qos
class class-default
shape average shape-rate
service-policy child-qosWorkaround 1: There is no workaround.
2.
Configuring this shaping class will impact guarantees in other classes under this policy-map
Condition 2: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs Cisco IOS Release 12.2(27)SBC2 when a single policy map with class-based shaping is configured in the following way:
policy-map shaping-qos
class class-default
shape average shape-rateWorkaround 2: Perform the following steps:
a.
class-map match-all my-class-default
match anyb.
policy-map my-policy-map
class my-class-default
shape average shape-ratec.
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Symptoms: When you change the atm dsx3mode command for the framing of one port of a 8-port E3/DS3 ATM line card (ESR-8E3/DS3-ATM), all ports on the line card are affected.
Conditions: This symptom is observed on a Cisco 10000 series.
Workaround: There is no workaround.
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Symptoms: Pre-classification on a GRE tunnel does not function.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 processor.
Workaround: There is no workaround.
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Symptoms: A service policy may be suspended when you enter the clear interface command for a multilink interface that has six members.
Conditions: This symptom is observed on a Cisco router that is configured for dLFIoLL and QoS.
Workaround: There is no workaround.
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This caveat consists of two symptoms, two conditions, and two workarounds:
Symptom 1: None of the policy classes after the first child policy of a hierarchical QoS policy take effect when you reload the router.
Condition 1: This symptom is observed on a Cisco 7304 that has hierarchical QoS policies with multiple child policies but may also occur on other platforms.
Workaround 1: There is no workaround to prevent the symptom from occurring. When the symptom has occurred, enter the service-policy output interface configuration command to enable the child policies to take effect. Note that the symptom does not occur for a hierarchical QoS policy with only one child policy in the very last class of the parent policy.
Symptom 2: On a Cisco 10000 series that is configured with hierarchical queueing policies, when you remove the match vlan command for a VLAN that matches a dot1q subinterface, the queues that are allocated to the subinterface are not cleared, allowing traffic to continue to flow through these queues.
Condition 2: This symptom is observed on a Cisco 10000 series that has hierarchical QoS policies with multiple child policies but may also occur on other platforms.
Workaround 2: There is no workaround. Note that the symptom does not occur for a hierarchical QoS policy with only one child policy in the very last class of the parent policy.
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Symptoms: NetFlow updates only MPLS-related egress records but not IPv4 ingress records.
Symptoms: This symptom is observed on a Cisco 10000 series that has an PRE-2 and that has the ip route-cache flow command enabled on its main ATM and GE interfaces and the mpls netflow egress command enabled on its ATM subinterfaces (on which PVCs are configured) and GE subinterfaces.
Note that the ip route-cache flow command is automatically converted into the ip flow ingress command and the mpls netflow egress command is automatically converted into the ip flow egress command, and these commands are stored in NVRAM. The symptom occurs after you have reloaded the PRE-2.
Workaround: Disable and re-enable the ip flow ingress command on the main interfaces.
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Symptoms: Packet loss may occur on a GRE tunnel on which CEF is enabled.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs the c7300-js-mz image of Cisco IOS Release 12.2(25)S8. The symptom may also occur in Release 12.2(27)SBC or Release 12.2(28)SB.
Workaround: Disable PXF on the Cisco 7304. If this is not an option, there is no workaround.
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Symptoms: The success rate of pings decreases when you increase the packet size of the pings, and the output of the show ip traffic command shows increasing ICMP checksum errors.
Conditions: This symptom is observed on a Cisco 7304 that has a an NSE-100, that runs Cisco IOS Release 12.2(28)SB, and that is configured with a 2-port OC-3 ATM line card (7300-2OC3ATM-SMI) when MLP and VRF are enabled on a virtual template that automatically configures the ATM PVC bundle on the line card.
Workaround: Disable VRF forwarding on the virtual template.
Alternate Workaround: Disable PPP on the ATM PVC bundle.
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Symptoms: A router that functions as an LNS may crash while processing traffic over L2TP connections, and the following error message is generated:
Cause 00000010 (Code 0x4): Address Error (load or instruction fetch) exceptionConditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.2(28)SB and that is configured for QoS. The symptom occurs during normal operation.
Workaround: There is no workaround.
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Symptoms: A router may crash when you enter the show policy-map interface command while an automated script completes the policy map and then removes the policy map during cleanup.
Conditions: This symptom is observed on a Cisco router when you enter the show policy-map interface command while, at the same time, the automated script removes the policy map.
Workaround: There is no workaround.
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Symptoms: When you boot the router, the SuperACL process causes a high CPU usage for an extended time, and not all configured policy maps are compiled.
Conditions: This symptom is observed on a Cisco 10000 series when there are hundreds (or more) policy maps in the configuration.
Workaround: Reduce the number of policy maps. If this is not an option, there is no workaround.
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Symptoms: Serial interfaces go down after an RP switchover.
Conditions: This symptom is observed on a Cisco 10000 series that has serial interfaces configured on either a channelized OC-3 or channelized OC-12 line card.
Workaround: There is no workaround to prevent the symptom from occurring. When the symptom has occurred. Bring the serial interfaces back up by resetting the line card.
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Symptoms: When an ATM interface has a QoS policy, locally generated traffic such as OSPF DPP traffic may not be transmitted.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs Cisco IOS Release 12.2(28)SB.
Workaround: There is no workaround.
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Symptoms: A Cisco 7304 may reload unexpectedly after two HA switchovers have occurred.
Conditions: This symptom is observed when 4000 virtual circuits are configured on the router.
Workaround: There is no workaround.
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Symptoms: A router that is configured for MPLS and NetFlow may reload unexpectedly because of a bus error.
Conditions: This symptom is observed on a Cisco router that has the vpdn enable and ip vrf commands enabled.
Workaround: There is no workaround.
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Symptoms: When you enter the xconnect command, the command is not accepted.
Conditions: This symptom is observed on a Cisco 7200 series, irrespective of which interface the command is entered for.
Workaround: There is no workaround.
TCP/IP Host-Mode Services
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Symptoms: When a CE router that is configured for MPLS reloads, a software-forced crash may occur on the connected PE router because of memory corruption.
Conditions: This symptom is observed on a Cisco router that functions as a PE router and that has two RPs that function in SSO mode. The symptom does not occur when the router has only a single RP.
Workaround: There is no workaround.
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The Cisco IOS Transmission Control Protocol (TCP) listener in certain versions of Cisco IOS software is vulnerable to a remotely-exploitable memory leak that may lead to a denial of service condition.
This vulnerability only applies to traffic destined to the Cisco IOS device. Traffic transiting the Cisco IOS device will not trigger this vulnerability.
Cisco has made free software available to address this vulnerability for affected customers.
This issue is documented as Cisco bug ID CSCek37177.
There are workarounds available to mitigate the effects of the vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070124-crafted-tcp.shtml.
Wide-Area Networking
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Symptoms: A serial interface on a channelized port adapter may stop forwarding traffic through the router but traffic to and from the router over the interface may still go through. The Tx accumulator "value" counter in the output of the show controllers cbus Exec command does not exceed the value 2, as is shown in the following example:
Router#sh controllers cbus | include Serial5/1/0.1/2/6/2:0
Serial5/1/0.1/2/6/2:0, txq E8001B40, txacc E8000412 (value 2), txlimit 26Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.0S when QoS is configured on at least one interface on the VIP in which the channelized port adapter is installed. The symptom occurs after the affected interface has flapped very frequently because of OSI layer 1 errors. The symptom may also occur in other releases.
Workaround: Remove and reconfigure the controller of the affected interface.
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Symptoms: A PPP session fails to come up, and the following debug message is generated:
PPP SSS: stale named authen method list "default"Conditions: This symptom is observed only when a service policy is applied and when the default PPP authentication method list is used.
Workaround: Use a PPP authentication method list other than the PPP authentication default method list.
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Symptoms: cRTP may become disabled on an interface when you disable and re-enable the ip rtp header-compression command on the interface.
Conditions: This symptom is observed on a Cisco router that functions in an MLP configuration when the link (such as a Frame Relay link) and the MLP bundle clone from the same virtual template.
Workaround: Reset the interface.
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Symptoms: A Cisco 7301 may crash when a service policy is removed from an interface that is configured for Frame Relay encapsulation.
Conditions: This symptom is observed when a service policy is configured on an interface before the encapsulation is changed to Frame Relay. When the service policy is then removed, the router crashes.
Workaround: Remove the service policy before you change the encapsulation to Frame Relay.
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Symptoms: PPP Multilink fragment loss occurs as the result of premature lost fragment timeouts. This can be seen in the lost fragment count in the output of the show ppp multilink command, as well as debug traces produced by the debug ppp multilink events command.
Conditions: This symptom has been observed with Cisco IOS Release 12.2(28)SB and Release 12.4(6)T, but not with Cisco IOS Release 12.2(27)SBC2 or Release 12.4(4)T.
Workaround: Configure the ppp timeout multilink lost-fragment 1 command under the Multilink interface or the Virtual-Template interface corresponding to the multilink bundle.
Resolved Caveats—Cisco IOS Release 12.2(28)SB1
Cisco IOS Release 12.2(28)SB1 is a rebuild release for Cisco IOS Release 12.2(28)SB. The caveats in this section are resolved in Cisco IOS Release 12.2(28)SB1 but may be open in previous Cisco IOS releases. Cisco IOS Release 12.2(28)SB1 support the Cisco 7304 only.
IP Routing Protocols
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Symptoms: A router may crash if it receives a packet with a specific crafted IP option as detailed in Cisco Security Advisory: Crafted IP Option Vulnerability:
http://www.cisco.com/warp/public/707/cisco-sa-20070124-crafted-ip-option.shtml
Conditions: This DDTS resolves a symptom of CSCec71950. Cisco IOS with this specific DDTS are not at risk of crash if CSCec71950 has been resolved in the software.
Workaround: Cisco IOS versions with the fix for CSCec71950 are not at risk for this issue and no workaround is required. If CSCec71950 is not resolved, see the following Cisco Security Advisory: Crafted IP Option Vulnerability for workaround information:
http://www.cisco.com/warp/public/707/cisco-sa-20070124-crafted-ip-option.shtml.
Miscellaneous
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Symptoms: When you remove and re-insert an MSC-100 card in which one or two SPAs are installed, the SPAs may become disabled for 10 to 12 minutes, after which they recover automatically.
Conditions: This symptom is observed on a Cisco 7304 when you perform either a physical OIR or a soft-OIR by entering the hw-module slot slot-number stop command followed by the hw-module slot slot-number start command. The symptom occurs only when the time between the removal and the re-insertion is 2 to 3 seconds.
Workaround: Do not re-insert the MSC-100 card too quickly after you have removed it. Wait at least 10 seconds before you re-insert the card.
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Symptoms: A Cisco 7304 may crash because of a bus error during normal operation when a external flash card is present.
Conditions: This symptom is observed on a Cisco 7304 that has an NPE-G100 and that runs Cisco IOS Release 12.2(20)S4 or Release 12.2(20)S8. The symptom may also occur in other releases.
Workaround: Do not use an external flash card. Rather, use an internal flash card.
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Symptoms: When you configure OAM on an ATM subinterface in an AToM configuration, the ATM subinterface goes down.
Conditions: This symptom is observed on a Cisco 7304 that has a NSE-100 and that functions as a PE router in an MPLS backbone.
Workaround: There is no workaround. Note that the symptom does not occur when you disable the PXF engine.
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Symptoms: A ping may fail when packets pass from an MPLS VPN into a GRE tunnel.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100, that functions as a PE router, and that is connect to the MPLS core via a serial interface.
Possible Workaround: Do not use a serial interface to connect the PE router to the MPLS core. Rather, use another type of interface.
Further Problem Description: The symptom occurs because the tunnel adjacency is not complete in the PXF engine, preventing packets from being correctly punted and the adjacency from becoming complete.
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Symptoms: The output of the show policy-map interface command shows incorrect statistics for a DSCP-based WRED policy. Also, when the class-map parameters are dynamically changed, the WRED statistics are lost.
Conditions: These symptoms are observed on a Cisco 7304 that has an NSE-100.
Workaround: There is no workaround.
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Symptoms: After you have configured ingress NetFlow on an interface, the output of the show ip cache verbose flow command may show incorrect values in the "Active" seconds column.
Conditions: This symptom is observed on a Cisco 7304 that runs Cisco IOS Release 12.2(20)S9, Release 12.2(20)S10, or Release 12.2(25)S8 when the ip flow ingress command is configured on an interface. The symptom may also occur in other releases.
Workaround: There is no workaround.
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Symptoms: The output of the show ip cache flow command, may shows some flows with a size of 4294M, which is the maximum size that can fit in a 32-bit value (2^32). Note that you can view the flows more easily in the output of the show ip cache flow | i M|Pkts command.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs Cisco IOS Release 12.2(25)S7. The symptom may occur in other releases.
Workaround: There is no workaround.
Further Problem Description: The symptom is of a cosmetic nature. Proper operation of the router is not affected.
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Symptoms: The PXF engine on a Cisco 7304 that functions as a PE router may crash when traffic passes from the MPLS core to a CE router.
Conditions: This symptom is observed when the traffic from the MPLS core is de-aggregated on the PE router into CE-facing interfaces that are configured into a VRF and that perform IP load-sharing and occurs while the PXF engine is active on the PE router.
Workaround: Disable IP-load-sharing on any interfaces that are configured into a VRF, such as the CE-facing interfaces.
Alternate Workaround: Disable PXF packet-processing on the PE router.
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Symptoms: Pre-classification on a GRE tunnel does not function.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 processor.
Workaround: There is no workaround.
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Symptoms: Packet loss may occur on a GRE tunnel on which CEF is enabled.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs the c7300-js-mz image of Cisco IOS Release 12.2(25)S8. The symptom may also occur in Release 12.2(27)SBC or Release 12.2(28)SB.
Workaround: Disable PXF on the Cisco 7304. If this is not an option, there is no workaround.
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Symptoms: The success rate of pings decreases when you increase the packet size of the pings, and the output of the show ip traffic command shows increasing ICMP checksum errors.
Conditions: This symptom is observed on a Cisco 7304 that has a an NSE-100, that runs Cisco IOS Release 12.2(28)SB, and that is configured with a 2-port OC-3 ATM line card (7300-2OC3ATM-SMI) when MLP and VRF are enabled on a virtual template that automatically configures the ATM PVC bundle on the line card.
Workaround: Disable VRF forwarding on the virtual template.
Alternate Workaround: Disable PPP on the ATM PVC bundle.
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Symptoms: When an ATM interface has a QoS policy, locally generated traffic such as OSPF DPP traffic may not be transmitted.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100 and that runs Cisco IOS Release 12.2(28)SB.
Workaround: There is no workaround.
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Symptoms: A Cisco 7304 may reload unexpectedly after two HA switchovers have occurred.
Conditions: This symptom is observed when 4000 virtual circuits are configured on the router.
Workaround: There is no workaround.
Open Caveats—Cisco IOS Release 12.2(28)SB
This section describes possibly unexpected behavior by Cisco IOS Release 12.2(28)SB. All the caveats listed in this section are open in Cisco IOS Release 12.2(28)SB. This section describes only severity 1, severity 2, and select severity 3 caveats.
Basic System Services
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Symptoms: FRoMPLS traffic does not pass through the first port of an 8-port multichannel T1/E1 8PRI (PA-MC-8TE1+).
Conditions: This symptom is observed on a Cisco router that functions as a CE router in an AToM environment when the ports of the PA-MC-8TE1+ are configured for E1. Note that the symptom does not occur for IP traffic and L3 traffic on the first port of the PA-MC-8TE1+, nor for the remaining seven E1 ports.
Workaround: There is no workaround.
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Symptoms: When you enter the clear subscriber session all command while traffic is being processed, the CPU usage of the router increases to 99 percent and sessions go down gradually. At the same time, the router automatically reinitiates sessions, and "%SSSMGR-3-MEMORY_LOW" and "%IDMGR-3-INVALID_ID:" error messages are generated. Eventually, the router generates "%TCP-6-NOBUFF:" and "%SYS-2-MALLOCFAIL" errors messages, and either resets all its interfaces or reloads.
Conditions: This symptom is observed on a Cisco 10000 series that runs 16,000 PTA sessions with ISG features and 16,000 plain L2TP sessions. On all sessions, stateless traffic is being processed. The symptom is not specific to a Cisco 10000 series and may occur on other platforms that function in a similar configuration.
Workaround: Do not clear all sessions at once via the clear subscriber session all command.
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Symptoms: The active RP or PRE may reload in the "db_record_set_field" function when the router runs out of memory resources.
Conditions: This symptom is observed on a Cisco router that is configured with many sessions and occurs because the ID manager cannot not enqueue the "db_field" to the "db_record" when the router runs out of memory resources.
Workaround: Limit the number of sessions on the router to ensure that there are sufficient memory resources.
IP Routing Protocols
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Symptoms: When IPv4 routes are imported into a VRF, the routes in the VRF CEF table are marked as "unusable" and "no label".
Conditions: This symptom is observed on a Cisco router when the "BGP Support for IP Prefix Import from a Global Table into a VRF Table" feature is enabled and when you enter the import ipv4 unicast command under a VRF.
Workaround: There is no workaround.
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Symptoms: Some BGP SSO peers become disabled.
Conditions: This symptom is observed after an SSO switchover occurs on a Cisco router.
Workaround: There is no workaround. Note that after five minutes the BGP SSO peers are automatically re-enabled.
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Symptoms: A PE router that functions in an MPLS VPN configuration may take a long time to converge.
Conditions: This symptom is observed when an interface goes down and when an MP-BGP next hop that points to this interface is no longer reachable. This MP-BGP next hop remains unreachable until the Interior Gateway Protocol (IGP) finds an alternate path. If the BGP scanner runs while the MP-BGP next hop is unreachable, VRF routes that use this MP-BGP next hop may be removed from the VRF routing table. However, usually, when the next BGP scanner runs, these VRF routes are updated and then re-imported into VRF routing table.
Workaround: The probability for the symptom to occur depends on the elapse time between the interface going down and the IGP convergence and can be decreases by tuning the IGP parameters for a faster convergence.
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Symptoms: When you enter the ip pim vrf register-source command on an interface and then delete the interface or its IP address, the command remains in the configuration. This situation causes the bulk synchronization to fail and the standby RP to reset continuously after an RP switchover has occurred. Then, because the register source (the interface) cannot be found, a BEM failure occurs.
Conditions: These symptoms are observed when the interface forwards traffic from a nondefault VRF and when the interface has a register source configured.
Workaround: Remove the ip pim vrf register-source command from the interface before you delete the interface or its IP address.
Miscellaneous
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Symptoms: A path trace buffer value may be displayed as UNSTABLE in the output of the show controllers command when you enter this command for an AU-3 port and look for the overhead bytes.
Conditions: This symptom is observed on a Cisco 10000 series that has a 4-port channelized OC-3 line card with an E1 interface that is configured for AU-3. The E1 interface has the overhead j1 length 16 transmit-message string command enabled.
Workaround: There is no workaround.
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Symptoms: A T1 interface that is configured for AU-4 mapping on a 4-port channelized OC-3 line card does not come up.
Conditions: This symptom is observed on a Cisco 10000 series when the T1 interface interoperates with a third-party vendor test analyzer device.
Workaround: There is no workaround.
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Symptoms: When class-based weighted fair queueing (CBWFQ) is configured, the router may not match the input packet rate.
Conditions: This symptom is observed on a Cisco router that is configured for ATM and Frame Relay.
Workaround: There is no workaround.
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Symptoms: You cannot re-enable Home Agent (HA) functionality on a router after you have first unconfigured it.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.2SB and that is configured for mobile IP.
Workaround: There is no workaround.
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Symptoms: Loss of packets may occur on video queues.
Conditions: This symptom is observed on a Cisco 10000 series that has Class-Based Weighted Fair Queueing (CBWFQ) configured on a PPP over Ethernet over ATM (PPPoEoA) link and occurs when traffic is being processed.
Workaround: There is no workaround.
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Symptoms: On a router that processes a high traffic rate, the output of the show processes cpu command shows 100 percent CPU usage.
Conditions: This symptom is observed on a Cisco router when the following conditions are present:
–
–
–
Workaround: Reduce the traffic rate.
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Symptoms: Tracebacks are generated on a Cisco 10000 series that is configured with serial interfaces.
Conditions: This symptom is observed when you change the encapsulation on a serial interface from PPP to Frame Relay.
Workaround: Before you change the encapsulation from PPP to Frame Relay, enter the no encapsulation ppp command.
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Symptoms: A QoS group that is set through QoS Policy Propagation via BGP (QPPB) may not function.
Conditions: This symptom is observed on a Cisco 10000 series that is configured with a PRE2.
Workaround: Use QPPB to set the IP precedence.
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Symptoms: When you use the BREAK key to interrupt the image boot process and then enter the dir command from the ROMmon prompt, a recurring "Arithmetic Overflow Exception" may occur.
Conditions: This symptom is observed on a Cisco 10000 series that has 104480 Kbytes of main memory and occurs only when a file system device driver is recursively loaded because you used the BREAK key to interrupt the image boot process and then entered the dir command without first resetting the ROMmon.
Workaround: Let the image boot and then enter the dir command. If you must interact with the file system via the ROMmon when the boot process has been interrupted, enter the reset command. If autoboot is enabled, use the BREAK key immediately after the banner line appears on screen.
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Symptoms: A ping over an MLP connection may fail.
Conditions: This symptom is observed on a Cisco 10000 series that is configured with 336 bundles with 3 links each. Note that the symptom does not occur when the router has 100 bundles with 10 links each or 126 bundles with 8 links each.
Workaround: There is no workaround.
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Symptoms: A router that is configured as an LSR may generate a "%LSD-4- LABEL_RESOURCE" error message when you attempt to extend the label range.
Conditions This symptom is observed when the LSR is configured with a limited label range when you attempt to extend the label range.
Workaround: Enter the no mpls label range command and reconfigure the extended label range.
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Symptoms: Policing does not drop any packets after the packets are sent or received at a rate that is much higher than the committed information rate (CIR).
Conditions: This symptom is observed on a Cisco 7500 series router but is not platform dependent.
Workaround: There is no workaround.
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Symptoms: A configuration does not synchronize to the standby RP and a traceback is generated.
Conditions: This symptom is observed on a Cisco router that has dual RPs and that has the crypto key zeroize rsa command enabled.
Workaround: There is no workaround.
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Symptoms: A traffic class is deleted even when there is traffic that matches the ACL for the traffic class.
Conditions: This symptom is observed when a subscriber session is configured with a traffic class that is configured with a Layer 4 redirect feature and idle timeout.
Workaround: There is no workaround.
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Symptoms: A forwarded packet may be lost on a PPPoE session.
Conditions: This symptom is observed on a Cisco 10000 series.
Workaround: There is no workaround.
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Symptoms: PPPoX multicast traffic is process-switched by default. This is improper behavior.
Conditions: This symptom is observed when the no ip mroute-cache command is enabled for virtual-template interfaces, causing IP multicast traffic to be process-switched.
Workaround: Enter the ip mroute-cache command for each virtual-template interface.
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Symptoms: When you apply a HQoS policy that has a shape parameter of 1 Gb in its parent policy to a subinterface, a traceback is generated. When there are more than 112 subinterfaces, you cannot apply the policy map to interfaces that exceed the 112th subinterface.
Conditions: This symptom is observed on a Cisco 10000 series when you apply or remove a HQoS policy to or from a subinterface and when the bandwidth in the parent policy map is 1 Gb.
Workaround: There is no workaround.
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Symptoms: A PRE crashes when you enter the set cos command for a HQoS parent policy map that is applied to an egress interface.
Conditions: This symptom is observed on a Cisco 10000 series and occurs whether or not the router processes traffic.
Workaround: Do not enter the set cos command for a HQoS parent policy map that is applied to an egress interface.
Further Documentation: The above-mentioned configuration is not supported on the Cisco 10000 series.
•
Symptoms: A 1-port channelized OC-12 or 4-port channelized OC-3 line card may reset.
Conditions: This symptom is observed on a Cisco 10000 series when you run a script that configures the line card with 768 E1 or T1 interfaces with either SDH or SONET framing.
Workaround: There is no workaround.
•
Symptoms: Gigabit Ethernet line cards flap and go down.
Conditions: This symptom is observed on a Cisco 10000 series that is configured with multiple pairs of Gigabit Ethernet line cards when traffic flows at or is approaching the line rate.
Workaround: Either turn on or turn off negotiation on the affected pair of line cards and the point of traffic generation.
•
Symptoms: Input drops or packet drops may occur when a 1-port Gigabit Ethernet half-height line card is processing IMIX traffic.
Conditions: This symptom is observed on a Cisco 10000 series that is configured with a 1-port Gigabit Ethernet half-height line card.
Workaround: There is no workaround.
•
Symptoms: A Cisco router that functions as an Intelligent Services Gateway (ISG) may reload when an error condition occurs in the control plane.
Conditions: This symptom is observed under a rare conditions when an error occurs while a session that contains auto services is brought up or while a service profile that contains auto services is activated. The symptom occurs because of a timing issue.
Workaround: Do not use auto services in the user profile.
•
Symptoms: On a Cisco 7500 router, the console of the active RSP may hang.
Conditions: This symptom is observed when the router functions in RPR mode and when you attempt to access the standby RSP file system from the console of the active RSP, for example, by entering the write memory command or the dir slavedisk0: command.
Note that the symptom is not specific to the Cisco 7500 series and may also occur on other platforms.
Workaround: There is no workaround.
Further Problem Description: Normal operation of the router is not affected, but the console becomes inaccessible.
•
Symptoms: In order for Ethernet over MPLS (EoMPLS) to function properly in either port mode or VLAN mode, the Ethernet controller must operate in promiscuous mode, that is, all MAC address filtering must be disabled. On the 8-port Fast Ethernet (FE) line card, there is one single register that controls the enabling and disabling of address filtering for the whole line card. Therefore, if even one single EoMPLS circuit is created on any of the eight ports of the line card, address filtering is disabled for all eight ports, that is all eight ports operate promiscuous mode. This situation is not desirable.
Conditions: This symptom is observed on a Cisco 10000 series that is configured for EoMPLS when you create an AToM circuit by entering the xconnect command on an Ethernet controller of the 8-port FE line card. In this situation, promiscuous mode is automatically enabled on the Ethernet controller and remains enabled for all eight ports of the line card until the last AToM circuit is removed from the Ethernet controller by entering the no xconnect command.
Workaround: There is no workaround.
•
Symptoms: Multilink interfaces remain down after an SSO switchover.
Conditions: This symptom is observed on a Cisco 10000 series that is configured for LFIoFR and occurs only when traffic is flowing while an SSO switchover occurs. When there is no traffic, the interfaces come up normally.
Workaround: There is no workaround.
•
Symptoms: Forcing release or renew commands on a BVI interface fails.
Conditions: The symptom has been observed on the Cisco 7200 platform.
Workaround: There is no workaround.
•
Symptoms: Policing in the outward direction is not performed for IP packets with an "IP Options" payload.
Conditions: This symptom is observed on a Cisco 10000 series that processes incoming IP packets with the "IP Options" field. The policing actions are ignored for the outgoing IP packet.
Workaround: There is no workaround.
•
Symptoms: A T1 interface that is configured on a channelized OC-3 line card may send a Loss of Framing (LoF) alarm, causing the T1 interface to enter the down/down state. Even after you have entered the loopback local command, have configured HDLC encapsulation, and have configured the clock source as internal, the T1 interface does not transition to the up state.
Conditions: This symptom is observed on a Cisco 10000 series.
Workaround: Reload the channelized OC-3 line card by entering the hw-module slot slot-number reset command.
•
Symptoms: After you reload the router, a glean adjacency is not resolved if the prefix is a tunnel destination.
Conditions: This symptom is observed on a Cisco 7304 that has a tunnel configured when the destination is another tunnel.
Workaround: Ping the tunnel interface of the destination to resolve the adjacency.
•
Symptoms: When you enter the clear subscriber sessions all command, the router reloads.
Conditions: This symptom is observed when Transparent Autologon (TAL) is used with ISG for control over DHCP addressing and when the router is using nearly all available CPU cycles and RAM.
Workaround: Do not you enter the clear subscriber sessions all command.
•
Symptoms: An ATM Permanent Virtual Path (PVP) goes down after a couple of minutes of non-activity.
Conditions: This symptom is observed on a Cisco router when you enter the atm pvp command and leave the connection idle for a couple of minutes.
Workaround: There is no workaround.
•
Symptoms: The output rate counters for a member link of a multilink interface do not increment when you look at the output of the show interfaces command.
Conditions: This symptom is observed on a Cisco 10000 series when packets are properly delivered through the member link of the multilink interface.
Workaround: Look at the PXF counters in the output of the show pxf cpu queue multilink interface or show pxf cpu subblock multilink interface commands.
•
Symptoms: The police function stops working when a PQ class map is removed and redefined for a policy map and when any class that is defined above the PQ class map is deleted. In this situation, all packets that match the PQ classes are marked as violated packets.
Conditions: This symptom is observed on a Cisco 10000 series.
Workaround: Remove the service policy and re-apply the service policy to the affected interfaces.
•
Symptoms: When you run the CISCO-FLASH-MIB, various traps are missing even though the operation is reported as successfully completed.
Conditions: This symptom is observed on a Cisco 10000 series that is configured for SNMP.
Workaround: There is no workaround.
•
Symptoms: A "PXF DMA Toaster Stall Error" may occur, the microcode may unexpectedly be reloaded onto the PXF engine, and the reusable bandwidth may be incorrectly shaped.
Conditions: These symptoms are observed on a Cisco 10000 series when a hierarchical policy map is attached to a Gigabit Ethernet interface and when the hierarchical policy map has a shaped rate that exceeds the link rate.
Workaround: Do not attach a policy map that has a shaped rate that exceeds the link rate.
•
Symptoms: The xconnect command is not accepted.
Conditions: This symptom is observed on a Cisco 7304 when you attempt to configure the xconnect command on an IMA port adapter that is configured for AAL0 encapsulation.
Workaround: There is no workaround.
•
Symptoms: An adjacency is not established when a GRE tunnel is configured.
Conditions: This symptom is observed on a Cisco 7304 that is configured with an NSE-100.
Workaround: Ping the next hop through the GRE tunnel.
•
Symptoms: When you create or delete an PPPoX session, the address conversion from the RP to the eXternal Column Memory (XCM) is incorrect, as is shown by a traceback that is displayed on the console of the standby PRE.
Conditions: This symptom is observed randomly on a Cisco 10000 series.
Workaround: There is no workaround.
•
Symptoms: The output of the show policy-map interface command shows the output queue packets and bytes counters as zero.
Conditions: This symptom is observed on a Cisco 10000 series on queues for which a policer is applied.
Workaround: Use the policer's counters in the output of the show policy-map interface command to determine the number of forwarded and dropped packets and bytes for the queue.
•
Symptoms: A Cisco 7200 series may crash when you apply a service policy with a priority action on a control plane.
Conditions: This symptom is observed on a Cisco 7200 series that is configured with an NPE-G1.
Workaround: There is no workaround.
Further Problem Description: A service policy with a priority action is not supported on a control plane. See the following Cisco document:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1838/
products_feature_guide0 9186a008052446b.html•
Symptoms: A ping does not pass through a Fast Ethernet interface that functions in AToM port mode.
Conditions: This symptom is observed on a Cisco 7304 that is configured with an NSE-100 and that has the xconnect interface configuration command enabled on the interface of a 1-port Fast Ethernet port adapter (PA-FE) that is installed in a port adapter carrier card (7300-CC-PA).
Workaround: Enter the shutdown interface configuration command followed by the no shutdown interface configuration command on the affected interface.
Alternate Workaround: Enter the shutdown interface configuration command, the xconnect interface configuration command, and then the no shutdown interface configuration command on the affected interface.
•
Symptoms: MLP traffic fails during a PRE failover of the protect router.
Conditions: This symptom is observed on a Cisco 10000 series when a PRE failover occurs on the protect router because of an MR-APS cable break failover from the protect router to the working router.
Workaround: If the active controller is brought up after the MR-APS failover, manually reverse APS.
•
Symptoms: A Cisco 7304 crashes because of an address error (load or instruction fetch) exception when you remove a virtual template that is applied to at least one ATM subinterface by entering the no interface virtual-template command.
Conditions: This symptom is observed on a Cisco 7304 that runs Cisco IOS Release 12.2(27)SBC1 and may also occur in Release 12.2(28)SB.
Workaround: Dot no apply a virtual template to an ATM interface.
•
Symptoms: Very high CPU usage may occur on a Cisco 10000 series when several thousand PPPoX PTA sessions are established and when the Port-Bundle Host Key (PBHK) feature is enabled. This situation can be observed in the output of the show processes cpu command.
Conditions: This symptom is observed on a Cisco 10000 series that is configured as an Intelligent Service Gateway (ISG) and that has the PBHK feature enabled with the default traffic class.
Workaround: Apply an explicit traffic class to the port bundle, that is, apply an IP ACL that has the IP address of the Subscriber Edge Services Manager (SESM) as its destination IP address. Doing so reduces the CPU usage considerably.
•
Symptoms: Non-priority traffic is dropped, and priority traffic is sent at a very low rate.
Conditions: This symptom is observed on a Cisco 7304 that has an NPE-G100 when hierarchical shaping is configured on an ATM VC with a priority class in the next layer, as in the following example:
policy-map atm-pri600 class From2_0 priority 150
policy-map hiershape class class-default shape average 1000000 service-policy atm-pri600
interface ATM4/0.401 point-to-point pvc 1/401 vbr-nrt 600 600 service-policy out hiershape
Workaround: There is no workaround to prevent the symptom from occurring. You can restore the flow by first removing the policy from the interface and then by entering the shutdown interface configuration command followed by the no shutdown interface configuration command on the affected interface.
•
Symptoms: A Cisco 10000 series that functions as an LNS with a highly scaled configuration may reload unexpectedly.
Conditions: This symptom is observed when the router runs very low on available processor memory. When this situation occurs, the following error messages are generated:
GENERAL-2-CRITEVENT: Unable to malloc current_if_info C10K_BBA_SESSION-3-ERREVENT: No VCCI found for LNS session (26831)Workaround: Reduce or limit the number of L2TP tunnels and/or the number of PPP sessions that are being terminated on the LNS.
•
Symptoms: A ping may fail when packets pass from an MPLS VPN into a GRE tunnel.
Conditions: This symptom is observed on a Cisco 7304 that has an NSE-100, that functions as a PE router, and that is connect to the MPLS core via a serial interface.
Possible Workaround: Do not use a serial interface to connect the PE router to the MPLS core. Rather, use another type of interface.
Further Problem Description: The symptom occurs because the tunnel adjacency is not complete in the PXF engine, preventing packets from being correctly punted and the adjacency from becoming complete.
•
Symptoms: The output of the show policy-map interface command shows incorrect statistics for a DSCP-based WRED policy. Also, when the class-map parameters are dynamically changed, the WRED statistics are lost.
Conditions: These symptoms are observed on a Cisco 7304 that has an NSE-100.
Workaround: There is no workaround.
•
Symptoms: A serial interface that is connected to an OSPP neighbor may flap during an SSO switchover, causing OSPF NSF to terminate during the switchover.
Conditions: This symptom is observed on a Cisco 7304 that is configured for NSF and occurs after multiple (10 or more) SSO switchovers.
Workaround: There is no workaround.
•
Symptoms: Some members of a multilink interface may flap when you enter the write memory command on the PRE. Flapping occurs randomly each time the router reloads.
Conditions: There symptoms are observed on a Cisco 10000 series that is configured for SSO, MR-APS, and MLP with Link Fragmentation Interleave (LFI).
Workaround: There is no workaround.
•
Symptoms: A router crashes when you attach a service policy at the PVC level on an ATM interface.
Conditions: This symptom is observed on a Cisco 7200 series when a bandwidth action is configured in the service policy and when traffic is passing through the interface.
Workaround: There is no workaround.
•
This caveat consists of two symptoms, two conditions, and two workarounds:
3.
Condition 1: This symptom is observed on a Cisco router that functions in either RPR+ or SSO mode.
Workaround 1: There is no workaround to prevent the symptom from occurring. When the symptom has occurred, reconfigure the lost settings via the console or a vty connection.
4.
Condition 1: This symptom is observed on a Cisco router that functions in RPR+ mode.
Workaround 1: There is no workaround to prevent the symptom from occurring. When the symptom has occurred, reconfigure the lost settings via the console or a vty connection.
•
Symptoms: On a Cisco 7304 that has an NSE-100, it is possible to configure Link Fragmentation and Interleaving (LFI) over MLP and an egress QoS policy on a multilink interface. This is an inappropriate configuration because neither of these features can work effectively in the NSE-100 architecture.
Conditions: This symptom is observed on a Cisco 7304 with an NSE-100. Note that LFI over MLP and an egress QoS policy on a multilink interface is an appropriate configuration on a Cisco 7304 with an NPE-G100 and works fine on a Cisco 7304 with an NPE-G100.
Workaround: Disable LFI over MLP by entering the no ppp multilink interleave command. Disable QoS on a multilink interface by entering the no service-policy output policy-map-name command.
TCP/IP Host-Mode Services
•
Symptoms: When a CE router that is configured for MPLS reloads, a software-forced crash may occur on the connected PE router because of memory corruption.
Conditions: This symptom is observed on a Cisco router that functions as a PE router and that has two RPs that function in SSO mode. The symptom does not occur when the router has only a single RP.
Workaround: There is no workaround.
Wide-Area Networking
•
Symptoms: A ping may fail across an ISDN BRI channel even though the ISDN B channel is up.
Conditions: This symptom is observed on a Cisco router when routing protocols are enabled on the ISDN BRI channel.
Workaround: Clear the BRI B channel.
•
Symptoms: A PPP session fails to come up, and the following debug message is generated:
PPP SSS: stale named authen method list "default"Conditions: This symptom is observed only when a service policy is applied and when the default PPP authentication method list is used.
Workaround: Use a PPP authentication method list other than the PPP authentication default method list.
•
Symptoms: When a VC that is configured under a VP goes down, PPPoE sessions can still be established over the VC.
Conditions: This symptom is observed on a Cisco 10000 series after you have entered the shutdown interface configuration command followed by the no shutdown interface configuration command on the main interface or after you have reloaded the router.
Workaround: There is no workaround.
•
Symptoms: A Cisco 7301 may crash when a service policy is removed from an interface that is configured for Frame Relay encapsulation.
Conditions: This symptom is observed when a service policy is configured on an interface before the encapsulation is changed to Frame Relay. When the service policy is then removed, the router crashes.
Workaround: Remove the service policy before you change the encapsulation to Frame Relay.
•
Symptoms: A PPP session is created with an IP address that is 0.0.0.0.
Conditions: This symptom is observed on a Cisco router when a RADIUS profile uses the "ip:addr-pool" attribute to assign an IP address and when AAA authorization fails because there is no IP address available in the address pool.
Workaround: Enter the ppp ipcp address required command to prevent a PPP session from being created with an IP address of 0.0.0.0.
•
Symptoms: A router may exhaust its I/O memory.
Conditions: This symptom is observed on a Cisco router when you clear 10,000 tunnels on which about 45,000 PPP sessions are established. The symptom occurs only under extreme stress situations.
Workaround: Clear the tunnels and sessions in stages.
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
Related Documentation
The following sections describe the documentation available for Cisco IOS Release 12.2SB. These documents consist of hardware and software installation guides, Cisco IOS configuration and command reference publications, system error messages, feature modules, and other documents.
Documentation is available online on Cisco.com.
Use these release notes with the following resources:
•
Release-Specific Documents
This section provides information about release-specific documents.
Cisco IOS Release 12.2SB
See the Cisco IOS Release 12.2SB Documentation Roadmap for detailed information about release-specific documents for Cisco IOS Release 12.2SB:
http://www.cisco.com/en/US/products/ps6566/
products_documentation_roadmap09186a00806786c3.htmlCisco IOS Release 12.2
The following documents are specific to Cisco IOS Release 12.2 and are located on Cisco.com and at http://www.cisco.com/univercd/home/index.htm:
•
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 Mainline: Release Notes
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS Release 12.2
•
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 Mainline
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2
•
As a supplement to the caveats listed in the "Caveats" section in these release notes, see the Cross-Platform Release Notes for Cisco IOS Release 12.2, which contain caveats applicable to all platforms for all maintenance releases of Release 12.2.
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 Mainline: Release Notes
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS Release 12.2
Note
Cisco IOS Release 12.2S
The following documents are specific to Cisco IOS Release 12.2S and are located on Cisco.com and at http://www.cisco.com/univercd/home/index.htm:
•
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 S: Release Notes
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2: Release Notes
•
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 S: Feature Guides
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2: New Feature Documentation: Cisco IOS Release 12.2 S: New Feature Documentation
•
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 S
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2: New Feature Documentation: Cisco IOS Release 12.2 S: System Messages for 12.2S
Platform-Specific Documents
Platform-specific information and documents for the platforms that are supported in Cisco IOS Release 12.2SB are available at the locations listed below:
•
–
Products & Solutions: Products: Routers and Routing Systems: 7200 Series Routers
–
Products & Solutions: Products: Routers and Routing Systems: 7200 Series Routers: in the "Technical Documentation & Tools" box on the right of the page, Cisco 7200 Series Routers
For Cisco 7200 series technical documentation on http://www.cisco.com/univercd/home/index.htm, select a Cisco 7200 series router from the Routers pull-down menu on the top left of the page.
•
–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 7300 Series Routers–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 7300 Series Routers: in the "Technical Documentation & Tools" box on the right of the page, Cisco 7300 Series Routers–
Routers: Cisco 7301
•
–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 7300 Series Routers–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 7300 Series Routers: in the "Technical Documentation & Tools" box on the right of the page, Cisco 7300 Series Routers–
Routers: Cisco 7304
•
–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 7500 Series Routers–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 7500 Series Routers: in the "Technical Documentation & Tools" box on the right of the page, Cisco 7500 Series Routers–
•
–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 10000 Series Routers–
Products & Solutions: Routers & Routing Systems: All Routers & Routing Systems:
Cisco 10000 Series Routers: in the "Technical Documentation & Tools" box on the right of the page, Cisco 10000 Series Routers–
Routers: Cisco 10000 ESR
Feature Modules
Feature modules describe new features supported by Cisco IOS Release 12.2SB and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature modules for Cisco IOS Release 12.2SB are available at the following locations:
•
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sb/newft/122sb28/index.htm
Cisco Feature Navigator
Cisco IOS software is packaged in feature sets that are supported on specific platforms. To get updated information regarding platform support for this feature, access Cisco Feature Navigator. Cisco Feature Navigator dynamically updates the list of supported platforms as new platform support is added for the feature.
Cisco Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS and Catalyst OS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or release. Under the release section, you can compare releases side by side to display both the features unique to each software release and the features in common.
Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
Cisco IOS Software Documentation Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command reference publications, and several other supporting documents.
Documentation Modules
Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
•
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 Mainline: Reference Guides: Configuration Guides
•
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 Mainline: Configure: Command References
•
Cisco IOS Software: Release 12.2: Cisco IOS Release 12.2 Configuration Guides and Command References
Cisco IOS Release 12.2 Documentation Set Contents
Table 12 lists the contents of the Cisco IOS Release 12.2 software documentation set, which is available in electronic form and in printed form if ordered.
Note
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Releases 12.2 Mainline
On http://www.cisco.com/univercd/home/index.htm at
Cisco IOS Software: Release 12.2
Note
Obtaining Documentation, Obtaining Support, and Security Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
CCVP, the Cisco logo, and the Cisco Square Bridge logo are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX, Networking Academy, Network Registrar, Packet, PIX, ProConnect, ScriptShare, SMARTnet, StackWise, The Fastest Way to Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0705R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
Copyright © 2006-2007 Cisco Systems, Inc. All rights reserved.
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