Table Of Contents
Release Notes
for the Cisco 2500 Series Routers
for Cisco IOS Release 11.3
Introduction
Determining Your Cisco IOS Software Release
Cisco 2500 Series Routers and Access Servers
Cisco AS2509-RJ and Cisco AS2511-RJ Access Servers
Generated SysObjectIDs
Selective Packet Discard (SPD)
Related Documentation
Cisco 2500 Series-Specific Documentation
Cisco IOS Documentation Set and Related Supporting Documents
Software Configuration Tips on the Cisco TAC Home Page
Online Navigation
New Software Features in Release 11.3(1)
New Hardware Support in Release 11.3(1)
Cisco IOS Feature Sets for Cisco 2500 Series Routers and Access Servers
Feature Set Tables
Upgrading to a New Software Release
Memory Requirements
Important Notes
Missing Source-Route Bridging Commands
Caveats
Caveats for Release 11.3(2)
Caveats for Release 11.3(1)
Cisco Connection Online
Documentation CD-ROM
Release Notes
for the Cisco 2500 Series Routers
for Cisco IOS Release 11.3
March 2, 1998
These release notes describe the new features and significant software components for Cisco IOS Release 11.3, up to and including Release 11.3(2), for Cisco 2500 series routers and access servers. For detailed information about the features and caveats in these release notes, refer to the Release Notes for Cisco IOS Release 11.3 publication, which contains features and caveats for all 11.3 platforms. This publication is available on the Documentation CD-ROM and on Cisco Connection Online (CCO), which are described in the section "Online Navigation."
Note 
The Cisco 2500 Series Routers support a subset of the Cisco IOS features described in these release notes. The Cisco IOS features that are available for the Cisco 2500 Series Routers are listed in the section "Cisco IOS Feature Sets for Cisco 2500 Series Routers and Access Servers" on page 9 .
Introduction
These release notes discuss the following topics:
•Determining Your Cisco IOS Software Release
•Cisco 2500 Series Routers and Access Servers
•Related Documentation
•Online Navigation
•New Software Features in Release 11.3(1)
•New Hardware Support in Release 11.3(1)
•Cisco IOS Feature Sets for Cisco 2500 Series Routers and Access Servers
•Upgrading to a New Software Release
•Memory Requirements
•Important Notes
•Caveats
•Cisco Connection Online
•Documentation CD-ROM
Determining Your Cisco IOS Software Release
To determine which version of Cisco IOS software is running on your Cisco 2500 series router or access server, login to the router, and enter the show version user EXEC command:
Output from the command is displayed in the second line, as follows:
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-JS-L), Version 11.3(2), RELEASE SOFTWARE
Additional command output lines include more information, such as:
•Processor revision numbers
•Memory amounts
•Hardware IDs
•Partition information
Cisco 2500 Series Routers and Access Servers
The following Cisco 2500 series routers and access servers are supported by Release 11.3:
•Single LAN: Cisco 2501, 2502, 2503, and 2504
•Dual LANs: Cisco 2513, 2514, and 2515
•Integrated HUBs: Cisco 2505, 2507, and 2516
•High Density Serial: Cisco 2520, 2521, 2522, and 2523
•Modular Routers: Cisco 2524 and 2525
•Access Servers:
•Cisco AS2509 and 2509-ET
•Cisco AS2509-RJ and AS2511-RJ
•Cisco AS2511 and AS2512
and summarize the interfaces supported for these devices. "Yes" means that a particular data rate or interface is supported.
Table 1 LAN Interfaces Supported
Interface
|
Cisco 2500 Series
|
Ethernet (AUI)
|
Yes
|
Ethernet (10BaseT)
|
Yes (2501, 2503, 2505, 2507, 2513, 2514, 2516, 2518, 2520, 2522, and 2524 only)
|
4-Mbps Token Ring
|
Yes
|
16-Mbps Token Ring
|
Yes (2502, 2504, 2513, 2515, 2517, 2519, 2521, 2523, and 2525 only)
|
Synchronous Serial
|
Yes
|
Table 2 WAN Data Rates and Interfaces Supported
| |
Cisco 2500 Series
|
Data Rate
|
|
56/64 kbps up to 1.536 Mbps
|
Yes
|
128 kbps
|
Yes
|
Interface
|
|
EIA/TIA-232
|
Yes
|
EIA/TIA-449
|
Yes
|
EIA-530
|
Yes
|
X.21
|
Yes
|
V.35
|
Yes
|
Serial, synchronous and asynchronous
|
Yes
|
ISDN BRI S/T
|
Yes (2503, 2504, 2516, 2520, 2521, 2522, 2523, 2524, and 2525 only)
|
ISDN BRI U
|
Yes (2524 and 2525)
|
Cisco AS2509-RJ and Cisco AS2511-RJ Access Servers
The Cisco AS2509-RJ and Cisco AS2511-RJ access servers connect asynchronous serial devices to LANs and WANs. The access servers combine the functions of a terminal server, protocol translator, and a router, and perform both synchronous and asynchronous routing of supported protocols.
These access servers provide the following interfaces and ports:
•8 (Cisco AS2509-RJ) or 16 (Cisco AS2511-RJ) asynchronous serial ports for connection to modems, terminals, or other asynchronous devices
•One Ethernet attachment unit interface (AUI) port for connection to a LAN
•One synchronous serial port for connection to a WAN
•One EIA/TIA-232 console port for connection to a console terminal
•One EIA/TIA-232 auxiliary port for connection to a terminal or modem
Generated SysObjectIDs
The Generated SysObjectIDs feature generates a unique sysObjectID for each Cisco 2500 series router and its derived partner product. For example, the sysObjectID values for a Cisco 2511, a partner 2511, and another partner 2511 are each different. The sysObjectID Simple Network Management Protocol (SNMP) MIB object is used to identify the device to be managed and make application-specific decisions. In some network management programs, this object determines which graphical element or name to display for a device.
Selective Packet Discard (SPD)
When in severe overload conditions, routers that cannot keep up with the incoming packet stream must drop packets. If no intelligence is applied to choosing which ones to discard, this impacts the stability of routing protocols. This feature applies some simple choices to selectively discard packets likely to be unimportant for routing and interface stability. SPD is enabled by default; there are no commands or configuration tasks required.
Related Documentation
All documents mentioned in this section are available in printed or electronic format. (See the section "Online Navigation" for more information on accessing electronic documentation.)
The following sections describe the documentation related to these release notes:
•Cisco 2500 Series-Specific Documentation
•Cisco IOS Documentation Set and Related Supporting Documents
•Software Configuration Tips on the Cisco TAC Home Page
Cisco 2500 Series-Specific Documentation
The following documents are specific to the Cisco 2500 series routers:
•Cisco 2524 and Cisco 2525 Public Network Certification
•Installing WAN Modules in the Cisco 2524 and Cisco 2525 Routers
•Cisco 2524 and Cisco 2525 Router User Guide
•Product-specific installation, configuration, and maintenance guides
•Router and hub user guides
•Supporting Documentation for the Cisco 2500 Series
•Regulatory and Safety Information for the Cisco 2500 Series
•Cisco 2509, 2510, 2511, and 2512 (user guide)
Cisco IOS Documentation Set and Related Supporting Documents
The following documents apply to the Cisco 2500 series routers:
•Release Notes for Cisco IOS Release 11.3
•Product-Specific Release Notes
•Cisco IOS 11.3 Dial Solutions Quick Configuration Guide
•Cisco IOS Release 11.3 Configuration Guides, Command References
•Cisco IOS 11.3T New Features
•Cisco IOS 11.3 Command Summary
•Cisco IOS 11.3 System Error Messages
•Access Services Quick Configuration Guide
•Cisco IOS Software Release 11.3 and 11.3T Caveats
•CIP Microcode Release Note and Upgrade Instructions
•Cisco IOS 11.3 Debug Command Reference
Note Due to a production problem, many source-route bridging commands were omitted from the printed version of the Cisco IOS Software Command Summary (78-4746-01). For complete documentation of all source-route bridging commands, refer to the Bridging and IBM Networking Command Reference (78-4743-01). You can also obtain the most current documentation on the Documentation CD-ROM or Cisco Connection Online (CCO).
The Cisco IOS configuration guides, command references, and chapter topics are as follows:
Books
|
Chapter Topics
|
•Configuration Fundamentals Configuration Guide
•Configuration Fundamentals Command Reference
|
Configuration Fundamentals Overview
Cisco IOS User Interfaces
File Management
Interface Configuration
System Management
|
•Network Protocols Configuration Guide, Part 1
•Network Protocols Command Reference, Part 1
|
IP Addressing
IP Services
IP Routing Protocols
|
•Network Protocols Configuration Guide, Part 2
•Network Protocols Command Reference, Part 2
|
AppleTalk
Novell IPX
|
•Network Protocols Configuration Guide, Part 3
•Network Protocols Command Reference, Part 3
|
Apollo Domain
Banyan VINES
DECnet
ISO CLNS
XNS
|
•Wide-Area Networking Configuration Guide
•Wide-Area Networking Command Reference
|
ATM
Frame Relay
SMDS
X.25 and LAPB
|
•Security Configuration Guide
•Security Command Reference
|
AAA Security Services
Security Server Protocols
Traffic Filtering
Network Data Encryption
Passwords and Privileges
Neighbor Router Authentication
IP Security Options
|
•Dial Solutions Configuration Guide
•Dial Solutions Command Reference
|
Dial Business Solutions and Examples
Dial-In Port Setup
DDR and Dial Backup
Remote Node and Terminal Service
Cost-Control and Large-Scale Dial Solutions
VPDN
|
•Cisco IOS Switching Services Configuration Guide
•Cisco IOS Switching Services Command Reference
|
Switching Paths for IP Networks
•Fast Switching
•Autonomous Switching
•NetFlow Switching
•Optimum Switching
Virtual LAN (VLAN) Switching and Routing
•Inter-Switch Link Protocol Encapsulation
•IEEE 802.10 Encapsulation
•LAN Emulation
|
•Bridging and IBM Networking Configuration Guide
•Bridging and IBM Networking Command Reference
|
Transparent Bridging
Source-Route Bridging
Remote Source-Route Bridging
DLSw+
STUN and BSTUN
LLC2 and SDLC
IBM Network Media Translation
DSPU and SNA Service Point
SNA Frame Relay Access Support
APPN
NCIA Client/Server Topologies
IBM Channel Attach
|
•Cisco IOS Software Command Summary
•Dial Solutions Quick Configuration Guide
•System Error Messages
•Debug Command Reference
|
|
Note The Cisco Management Information Base (MIB) User Quick Reference publication is no longer being published. For the latest list of MIBs supported by Cisco, see the Cisco Network Management Toolkit on Cisco Connection Online. On CCO, go to Software and Support, select Software Center, and click Network Management Products. Next, select Cisco Network Management Toolkit, and click Cisco MIBs.
Software Configuration Tips on the Cisco TAC Home Page
The following URL contains links to access helpful tips on configuring your Cisco products:
http://www.cisco.com/kobayashi/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your web browser to http://www.cisco.com/, and follow this path: Software & Support, Technical Tips (button on left margin).
"Hot Tips" are popular tips and hints gathered from the Cisco Technical Assistance Center (TAC). Most of these documents are available from the TAC FAX-on-demand service. To access FAX-on-demand and receive documents at your FAX machine from the USA, call 888-50-CISCO (888-502-4726). From other areas, call 415-596-4408.
The following sections are provided from the Technical Tips page:
•Field Notices—Designed to provide notification of any critical issues regarding Cisco products. These include problem descriptions, safety or security issues, and hardware defects.
•Hardware—Technical Tips related to specific hardware platforms.
•Internetworking Features—Tips on using and deploying Cisco IOS software features and services.
•Sample Configurations—Actual configuration examples complete with topology and annotations.
•Software Products—MultiNet & Cisco Suite 100, Network Management, Cisco IOS Software Bulletins, and CiscoPro Configurations.
•Special Collections—Other Helpful Documents, Frequently Asked Questions, Security Advisories, References & RFCs, Case Studies, and the CiscoPro Documentation CD-ROM.
Online Navigation
The Cisco IOS software documentation set is available as printed manuals or electronic documents. You can access Cisco 2500 series-specific documentation and Cisco IOS software documentation at Cisco Connection Online (CCO) on the World Wide Web and on the Cisco Documentation CD-ROM:
•Cisco 2500 series manuals and configuration notes:
•Using a web browser, go to http://www.cisco.com/, click Products & Ordering, select Cisco Documentation, and go to Access Servers and Access Routers. Use one of the following link paths to find additional documentation:
Select Modular Access Routers and click Cisco 2500 Series Modular Routers
or
Select Fixed Configuration Access Routers, and click Cisco 2500. Select your 2500 Series product to access its installation and configuration manual or click of the following links: Supporting Documentation for the Cisco 2500 Series, Regulatory and Safety Information for the Cisco 2500 Series, or Cisco 2509, 2510, 2511, and 2512.
•On the Documentation CD-ROM, go to Cisco Product Documentation, select Access Servers and Access Routers, and go to Access Servers and Access Routers. Use one of the following link paths to find additional documentation:
Select Modular Access Routers and click Cisco 2500 Series Modular Routers
or
Select Fixed Configuration Access Routers, and click Cisco 2500. Select your 2500 Series product to access its installation and configuration manual or click of the following links: Supporting Documentation for the Cisco 2500 Series, Regulatory and Safety Information for the Cisco 2500 Series, or Cisco 2509, 2510, 2511, and 2512.
•Cisco IOS documentation set and supporting documents:
•On the Documentation CD-ROM, go to Cisco Product Documentation, select Cisco IOS Software Configuration, and then select Cisco IOS Release 11.3.
•On CCO, go to Software and Support, and select Documentation. Next, select Documentation, click Cisco IOS Software Configuration, and then click Cisco IOS Release 11.3.
For additional information about the Documentation CD-ROM and CCO, refer to the sections "Cisco Connection Online" and "Documentation CD-ROM" at the end of these release notes.
New Software Features in Release 11.3(1)
Release 11.3 supports features in the following categories:
•IBM Support
•Internet
•LAN Support
•Management
•Multimedia
•Quality of Service
•Security
•Switching
•Terminal Services
•WAN Optimization
•WAN Services
Detailed descriptions of the features are available on the Documentation CD-ROM and on CCO:
•On the Documentation CD-ROM, go to Cisco Product Documentation, select Cisco IOS Software Configuration, click Cisco IOS Release 11.3, and then select Release Notes for Cisco IOS Release 11.3. From the bulleted list, select New Features for Release 11.3.
•From the CCO web page, go to Cisco Documentation, click Cisco IOS Software Configuration, select Cisco IOS Release 11.3, and then select Release Notes for Cisco IOS Release 11.3. From the bulleted list, select New Features for Release 11.3.
New Hardware Support in Release 11.3(1)
The following platform enhancement has been added to Release 11.3:
Selective Packet Discard (SPD)—When in severe overload conditions, routers that cannot keep up with the incoming packet stream must drop packets. If no intelligence is applied to choosing which ones to discard, this impacts the stability of routing protocols. This feature applies some simple choices to selectively discard packets likely to be unimportant for routing and interface stability. SPD is enabled by default; there are no commands or configuration tasks required.
Cisco IOS Feature Sets for Cisco 2500 Series Routers and Access Servers
The Cisco IOS software is packaged into "feature sets" (also called "software images"). There are many different feature sets available, and each feature set contains a specific subset of Cisco IOS features. The following conventions are used to identify feature sets:
•Plus: a value-added option that contains a variable set of additional features depending on the hardware platform selected
•Plus 40: a value-added option that contains a variable set of additional features depending on the hardware platform selected, including 40-bit data encryption
•Plus 56: a value-added option that contains a variable set of additional features depending on the hardware platform selected, including 56-bit data encryption
Cisco IOS images with strong encryption (including, but not limited to, 56-bit DES) are subject to U.S. government export controls and have a limited distribution. Images to be installed outside the U.S. require an export license. Customer orders might be denied or subject to delay due to U.S. government regulations. Contact your sales representative or distributor for more information, or send e-mail to export@cisco.com.
The following list shows which feature sets are supported on the Cisco 2500 series routers and access servers. These feature sets only apply to Cisco IOS Release 11.3:
•IP
•IP Plus
•IP Plus 40
•IP Plus 56
•ISDN
•IP/IPX/AT/DEC
•IP/IPX/AT/DEC Plus
•Enterprise Plus
•Enterprise Plus 40
•Enterprise Plus 56
•Enterprise APPN Plus
•Enterprise APPN Plus 40
•Enterprise APPN Plus 56
•Remote Access Server
Feature Set Tables
To determine what features are available with each feature set (software image), see and . The tables summarize the features you can use when running a specific feature set on the Cisco 2500 series routers for Cisco IOS Release 11.3. The feature set tables use the following symbol conventions to identify features:
•Yes: the feature is offered in the feature set
•No: the feature is not offered in the feature set
Table 3 Cisco IOS Software Feature Sets for the Cisco 2500 Series Routers, Part 1
| |
Feature Set
|
Feature
|
IP
|
IP
Plus
|
IP
Plus
40
|
IP
Plus
56
|
ISDN
|
IP/IPX/
AT/
DEC
|
IP/IPX/
AT/
DEC
Plus
|
IP/
IBM/
APPN
|
Enter-
prise
Plus
|
Enter-
prise
Plus
40
|
Enter-
prise
Plus
56
|
IBM Support
|
|
|
|
|
|
|
|
|
|
|
|
APPN High Performance Routing
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
APPN MIB Enhancements
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
APPN over Ethernet LAN Emulation
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
APPN Scalability Enhancements
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
Bisync Enhancements, includes:
–Bisync 3780 Support
–BSC Extended Addressing
–Block Serial Tunneling (BSTUN) over Frame Relay
|
No
|
Yes
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Cisco MultiPath Channel (CMPC)
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
DLSw+ Enhancements, includes:
–Backup Peer Extensions for Encapsulation Types
–DLSw+ Border Peer Caching
–DLSw+ MIB Enhancements
–DLSw+ SNA Type of Service
–LLC2-to-SDLC Conversion between PU4 Devices
–NetBIOS Dial-on-Demand Routing
–UDP Unicast Enhancement
|
No
|
Yes
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Yes
|
Yes
|
Yes
|
FRAS Enhancements, includes:
–FRAS Boundary Network Node Enhancement
–FRAS Dial Backup over DLSw+
–FRAS DLCI Backup
–FRAS Host
–FRAS MIB
–SRB over Frame Relay
|
No
|
Yes
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Yes
|
Yes
|
Yes
|
SRB over FDDI on Cisco 4000, 4500, and 4700 Series Routers
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
TN3270 LU Nailing
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
TN3270 Server Enhancements
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
Token Ring LANE
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
Tunneling of Asynchronous Security Protocols
|
No
|
Yes
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Internet
|
|
|
|
|
|
|
|
|
|
|
|
DRP Server Agent
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
IP Routing
|
|
|
|
|
|
|
|
|
|
|
|
Easy IP (Phase 1)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Hot Standby Router Protocol (HSRP) over ISL in Virtual LAN Configurations
|
No
|
No
|
No
|
No
|
|
No
|
No
|
|
No
|
No
|
No
|
IP Enhanced IGRP Route Authentication
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
TCP Enhancements, includes:
–TCP Selective Acknowledgment
–TCP Timestamp
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
LAN Support
|
|
|
|
|
|
|
|
|
|
|
|
AppleTalk Access List Enhancements
|
No
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
DECnet Accounting
|
No
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
IPX Named Access Lists
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
IPX SAP-after-RIP
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
NLSP Enhancements
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
Yes
|
Yes
|
Yes
|
NLSP Multicast Support
|
No
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Management
|
|
|
|
|
|
|
|
|
|
|
|
Cisco Call History MIB Command Line Interface
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Cisco IOS Internationalization
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Entity MIB, Phase 1
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
SNMPv2C
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Virtual Profiles
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Multimedia
|
|
|
|
|
|
|
|
|
|
|
|
IP Multicast Load Splitting across Equal-Cost Paths
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
IP Multicast over ATM Point-to-Multipoint Virtual Circuits
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
IP Multicast over Token Ring LANs
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Stub IP Multicast Routing
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Quality of Service
|
|
|
|
|
|
|
|
|
|
|
|
RTP Header Compression
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Security
|
|
|
|
|
|
|
|
|
|
|
|
Double Authentication
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Encrypted Kerberized Telnet
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
Yes
|
HTTP Security
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Per-User Configuration
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Reflexive Access Lists
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
TCP Intercept
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
Yes
|
Yes
|
Yes
|
Vendor-Proprietary RADIUS Attributes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Switching
|
|
|
|
|
|
|
|
|
|
|
|
AppleTalk Routing over ISL and IEEE 802.10 in Virtual LANs
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
CLNS and DECnet Fast Switching over PPP
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
Yes
|
Yes
|
Yes
|
DECnet/VINES/XNS over ISL, includes:
–Banyan VINES Routing over ISL Virtual LANs
–DECnet Routing over ISL Virtual LANs
–XNS Routing over ISL Virtual LANs
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
Yes
|
Yes
|
Yes
|
Fast-Switched Policy Routing
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
IPX Routing over ISL Virtual LANs
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
VIP Distributed Switching Support for IP Encapsulated in ISL
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
Terminal Services
|
|
|
|
|
|
|
|
|
|
|
|
Virtual Templates for Protocol Translation
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
Yes
|
Yes
|
Yes
|
WAN Optimization
|
|
|
|
|
|
|
|
|
|
|
|
ATM MIB Enhancements
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
PAD Enhancements
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
Yes
|
Yes
|
Yes
|
PAD Subaddressing
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
WAN Services
|
|
|
|
|
|
|
|
|
|
|
|
Bandwidth Allocation Control Protocol
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Enhanced Local Management Interface (ELMI)
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Frame Relay Enhancements
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Frame Relay MIB Extensions
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Frame Relay Router ForeSight
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
ISDN Advice of Charge
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
ISDN Caller ID Callback
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
ISDN NFAS
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
Layer 2 Forwarding—Fast Switching
|
No
|
Yes
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Leased Line ISDN at 128 kbps
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
PPP over ATM
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
|
No
|
No
|
No
|
Telnet Extensions for Dialout
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
X.25 Enhancements
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
X.25 on ISDN
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
X.25 Switching between PVCs and SVCs
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
X.28 Emulation
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
|
Yes
|
Yes
|
Yes
|
Table 4 Cisco IOS Software Feature Sets for the Cisco 2500 Series Routers, Part 2
| |
Feature Set
|
Feature
|
Enterprise/
APPN Plus
|
Enterprise/
APPN Plus 40
|
Enterprise/
APPN Plus 56
|
Remote Access Server
|
IBM Support
|
|
|
|
|
APPN High Performance Routing
|
Yes
|
Yes
|
Yes
|
No
|
APPN MIB Enhancements
|
Yes
|
Yes
|
Yes
|
No
|
APPN over Ethernet LAN Emulation
|
Yes
|
Yes
|
Yes
|
No
|
APPN Scalability Enhancements
|
Yes
|
Yes
|
Yes
|
No
|
Bisync Enhancements, includes:
–Bisync 3780 Support
–BSC Extended Addressing
–Block Serial Tunneling (BSTUN) over Frame Relay
|
Yes
|
Yes
|
Yes
|
No
|
Cisco MultiPath Channel (CMPC)
|
No
|
No
|
No
|
No
|
DLSw+ Enhancements, includes:
–Backup Peer Extensions for Encapsulation Types
–DLSw+ Border Peer Caching
–DLSw+ MIB Enhancements
–DLSw+ SNA Type of Service
–LLC2-to-SDLC Conversion between PU4 Devices
–NetBIOS Dial-on-Demand Routing
–UDP Unicast Enhancement
|
Yes
|
Yes
|
Yes
|
No
|
FRAS Enhancements, includes:
–FRAS Boundary Network Node Enhancement
–FRAS Dial Backup over DLSw+
–FRAS DLCI Backup
–FRAS Host
–FRAS MIB
–SRB over Frame Relay
|
Yes
|
Yes
|
Yes
|
No
|
SRB over FDDI on Cisco 4000, 4500, and 4700 Series Routers
|
No
|
No
|
No
|
No
|
TN3270 LU Nailing
|
No
|
No
|
No
|
No
|
TN3270 Server Enhancements
|
No
|
No
|
No
|
No
|
Token Ring LANE
|
No
|
No
|
No
|
No
|
Tunneling of Asynchronous Security Protocols
|
Yes
|
Yes
|
Yes
|
No
|
Internet
|
|
|
|
|
DRP Server Agent
|
Yes
|
Yes
|
Yes
|
No
|
IP Routing
|
|
|
|
|
Easy IP (Phase 1)
|
Yes
|
Yes
|
Yes
|
Yes
|
Hot Standby Router Protocol (HSRP) over ISL in Virtual LAN Configurations
|
No
|
No
|
No
|
No
|
IP Enhanced IGRP Route Authentication
|
Yes
|
Yes
|
Yes
|
Yes
|
TCP Enhancements, includes:
–TCP Selective Acknowledgment
–TCP Timestamp
|
Yes
|
Yes
|
Yes
|
Yes
|
LAN Support
|
|
|
|
|
AppleTalk Access List Enhancements
|
Yes
|
Yes
|
Yes
|
No
|
DECnet Accounting
|
Yes
|
Yes
|
Yes
|
No
|
IPX Named Access Lists
|
Yes
|
Yes
|
Yes
|
Yes
|
IPX SAP-after-RIP
|
Yes
|
Yes
|
Yes
|
Yes
|
NLSP Enhancements
|
Yes
|
Yes
|
Yes
|
No
|
NLSP Multicast Support
|
Yes
|
Yes
|
Yes
|
No
|
Management
|
|
|
|
|
Cisco Call History MIB Command Line Interface
|
Yes
|
Yes
|
Yes
|
No
|
Cisco IOS Internationalization
|
Yes
|
Yes
|
Yes
|
Yes
|
Entity MIB, Phase 1
|
Yes
|
Yes
|
Yes
|
Yes
|
SNMPv2C
|
Yes
|
Yes
|
Yes
|
Yes
|
Virtual Profiles
|
Yes
|
Yes
|
Yes
|
Yes
|
Multimedia
|
|
|
|
|
IP Multicast Load Splitting across Equal-Cost Paths
|
Yes
|
Yes
|
Yes
|
Yes
|
IP Multicast over ATM Point-to-Multipoint Virtual Circuits
|
No
|
No
|
No
|
No
|
IP Multicast over Token Ring LANs
|
Yes
|
Yes
|
Yes
|
Yes
|
Stub IP Multicast Routing
|
Yes
|
Yes
|
Yes
|
Yes
|
Quality of Service
|
|
|
|
|
RTP Header Compression
|
Yes
|
Yes
|
Yes
|
Yes
|
Security
|
|
|
|
|
Double Authentication
|
Yes
|
Yes
|
Yes
|
Yes
|
Encrypted Kerberized Telnet
|
No
|
No
|
Yes
|
No
|
HTTP Security
|
Yes
|
Yes
|
Yes
|
Yes
|
Per-User Configuration
|
Yes
|
Yes
|
Yes
|
Yes
|
Reflexive Access Lists
|
Yes
|
Yes
|
Yes
|
Yes
|
TCP Intercept
|
Yes
|
Yes
|
Yes
|
No
|
Vendor-Proprietary RADIUS Attributes
|
Yes
|
Yes
|
Yes
|
Yes
|
Switching
|
|
|
|
|
AppleTalk Routing over ISL and IEEE 802.10 in Virtual LANs
|
No
|
No
|
No
|
No
|
CLNS and DECnet Fast Switching over PPP
|
Yes
|
Yes
|
Yes
|
No
|
DECnet/VINES/XNS over ISL, includes:
–Banyan VINES Routing over ISL Virtual LANs
–DECnet Routing over ISL Virtual LANs
–XNS Routing over ISL Virtual LANs
|
No
|
No
|
No
|
No
|
Fast-Switched Policy Routing
|
Yes
|
Yes
|
Yes
|
Yes
|
IPX Routing over ISL Virtual LANs
|
No
|
No
|
No
|
No
|
VIP Distributed Switching Support for IP Encapsulated in ISL
|
No
|
No
|
No
|
No
|
Terminal Services
|
|
|
|
|
Virtual Templates for Protocol Translation
|
Yes
|
Yes
|
Yes
|
Yes
|
WAN Optimization
|
|
|
|
|
ATM MIB Enhancements
|
No
|
No
|
No
|
No
|
PAD Enhancements
|
Yes
|
Yes
|
Yes
|
Yes
|
PAD Subaddressing
|
Yes
|
Yes
|
Yes
|
Yes
|
WAN Services
|
|
|
|
|
Bandwidth Allocation Control Protocol
|
Yes
|
Yes
|
Yes
|
No
|
Enhanced Local Management Interface (ELMI)
|
Yes
|
Yes
|
Yes
|
Yes
|
Frame Relay Enhancements
|
Yes
|
Yes
|
Yes
|
Yes
|
Frame Relay MIB Extensions
|
Yes
|
Yes
|
Yes
|
Yes
|
Frame Relay Router ForeSight
|
Yes
|
Yes
|
Yes
|
Yes
|
ISDN Advice of Charge
|
Yes
|
Yes
|
Yes
|
No
|
ISDN Caller ID Callback
|
Yes
|
Yes
|
Yes
|
No
|
ISDN NFAS
|
No
|
No
|
No
|
No
|
Layer 2 Forwarding—Fast Switching
|
Yes
|
Yes
|
Yes
|
Yes
|
Leased Line ISDN at 128 kbps
|
No
|
No
|
No
|
No
|
PPP over ATM
|
No
|
No
|
No
|
No
|
Telnet Extensions for Dialout
|
Yes
|
Yes
|
Yes
|
Yes
|
X.25 Enhancements
|
Yes
|
Yes
|
Yes
|
Yes
|
X.25 on ISDN
|
Yes
|
Yes
|
Yes
|
No
|
X.25 Switching between PVCs and SVCs
|
Yes
|
Yes
|
Yes
|
Yes
|
X.28 Emulation
|
Yes
|
Yes
|
Yes
|
Yes
|
Upgrading to a New Software Release
If you are upgrading to Cisco IOS Release 11.3 from an earlier Cisco IOS software release, you should save your current configuration file before configuring your access server with the Cisco IOS Release 11.3 software. An unrecoverable error could occur during download or configuration.
Note Before downloading a software upgrade, read Product Bulletin #703, Cisco IOS Software Release Upgrade Paths and Packaging Simplification. The information in this bulletin supersedes the following instructions.
For instructions on downloading a current Cisco IOS release from the CCO Trivial File Transfer Protocol (TFTP) server, go to the following URL. (This URL is subject to change without notice.)
http://www.cisco.com/kobayashi/sw-center
The Software Center window is displayed.
Step 1 Click Cisco IOS Software. The Cisco IOS Software window is displayed.
Step 2 Click Cisco IOS 11.3. The Cisco 11.3 Software Upgrade Planner window is displayed.
Step 3 Click Download Cisco IOS 11.3 Software. The Software Checklist window is displayed.
Step 4 Select the appropriate information in each section of the Software Checklist window.
•Hardware
•Release
•Software and hardware release
Step 5 Click Execute. The software release is downloaded to your desktop computer.
Step 6 Transfer the software release to a local TFTP server on your network, using a terminal emulation application such as TCP Connect.
Step 7 Log onto your router. Copy the software release from your TFTP server to your router, using the copy tftp command.
Memory Requirements
Table 5 through Table 6 describe the memory requirements for the Cisco 2500 series platform feature set supported by Cisco IOS Release 11.3. Beginning with Cisco IOS Release 10.3, some software image sizes exceed 4 MB and, when compressed, exceed 2 MB. Also, some systems now require more than 1 MB of main system memory for data structure tables.
For Cisco routers to take advantage of the Release 11.3 features, you must upgrade the code or main system memory. Some platforms have specific chip or architecture requirements that affect what can be upgraded and in what increments.
Table 5 Release 11.3 Memory Requirements
Platform/Feature Set
|
Image Name
|
Minimum Required Code Memory
|
Required Main Memory
|
Release 11.3 Runs from
|
IP
|
c2500-i-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
IP Plus
|
c2500-is-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
IP Plus 40
|
c2500-is40-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
IP Plus 56
|
c2500-is56-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
ISDN
|
c2500-g-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
IP/IPX/AT/DEC
|
c2500-d-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
IP/IPX/AT/DEC Plus
|
c2500-ds-1
|
8 MB Flash
|
6 MB DRAM
|
Flash
|
Enterprise Plus
|
c2500-js-1
|
16 MB Flash
|
6 MB DRAM
|
Flash
|
Enterprise Plus 40
|
c2500-js40-1
|
16 MB Flash
|
8 MB DRAM
|
Flash
|
Enterprise Plus 56
|
c2500-js56-1
|
16 MB Flash
|
8 MB DRAM
|
Flash
|
Enterprise/APPN Plus
|
c2500-ajs-1
|
16 MB Flash
|
8 MB DRAM
|
Flash
|
Enterprise/APPN Plus 40
|
c2500-ajs40-1
|
16 MB Flash
|
8 MB DRAM
|
Flash
|
Enterprise/APPN Plus 56
|
c2500-ajs56-1
|
16 MB Flash
|
8 MB DRAM
|
Flash
|
Remote Access Server (RAS)
|
c2500-c-1
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
Table 6 Cisco AS2509-RJ and Cisco AS2511-RJ—Memory Requirements
Feature Set
|
Required
Flash
Memory
|
Required DRAM
Memory
|
|
IP
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
Remote Access Server
|
8 MB Flash
|
4 MB DRAM
|
Flash
|
Important Notes
This section describes noteworthy issues about using the Cisco IOS Release 11.3 software.
Missing Source-Route Bridging Commands
Due to a production problem, many source-route bridging commands were omitted from the printed version of the Cisco IOS Software Command Summary (78-4746-01). For complete documentation of all source-route bridging commands, refer to the Bridging and IBM Networking Command Reference (78-4743-01). You can also obtain the most current documentation on the Documentation CD-ROM or Cisco Connection Online (CCO).
Caveats
A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
•On the Documentation CD-ROM, go to Cisco Product Documentation, select Cisco IOS Software Configuration, click Cisco IOS Release 11.3, then select Release Notes for Cisco IOS Release 11.3. From the bulleted list, select Important Notes and Caveats for Release 11.3.
•On CCO, go to Software and Support, and select Documentation. Next, go to Cisco Documentation, click Cisco IOS Software Configuration, select Cisco IOS Release 11.3, and then select Release Notes for Cisco IOS Release 11.3. From the bulleted list, click Important Notes and Caveats for Release 11.3.
Each of the following sections lists the areas where caveats exist for a specific software release.
Caveats for Release 11.3(2)
Possibly unexpected behavior in Cisco IOS Release 11.3(2) exists in the following areas:
•Basic System Services
•IBM Connectivity
•Interfaces and Bridging
•IP Routing Protocols
•ISO CLNS
•Novell IPX, XNS, and Apollo Domain
•Wide-Area Networking
Caveats for Release 11.3(1)
Possibly unexpected behavior in Cisco IOS Release 11.3(1) exists in the following areas:
•AppleTalk
•Basic System Services
•IBM Connectivity
•Interfaces and Bridging
•IP Routing Protocols
•Novell IPX, XNS, and Apollo Domain
•TCP/IP Host-Mode Services
•VINES
•Wide-Area Networking
Cisco Connection Online
Cisco Connection Online (CCO) is the Cisco Systems primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
•You can access CCO in the following ways:
•WWW: http://www.cisco.com
•WWW: http://www-europe.cisco.com
•WWW: http://www-china.cisco.com
•Telnet: cco.cisco.com
•Modem: From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the following terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and connection rates up to 28.8 kbps.
For a copy of CCO Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact the Cisco Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar, select Documentation, and click Enter the feedback form. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
78-5029-02, Rev. B0
