Table Of Contents
Release Notes for the Cisco 4000 Series for Cisco IOS Release 11.3 T
Determining the Version of Your Software Release
Upgrading to a New Software Release
New Features in Release 11.3(5)T through Release 11.3(11)T
New Features in Release 11.3(4)T
IP Type of Service and Precedence for GRE Tunnels
New Features in Release 11.3(3)T
Named Method Lists for AAA Authorization & Accounting
Additional Vendor-Proprietary RADIUS Attributes
Automated Double Authentication
Certificate Authority Interoperability
Internet Key Exchange Security Protocol
Always On/Dynamic ISDN (AO/DI)
Microsoft Point-to-Point Compression (MMPC)
National ISDN Switch Types for Basic Rate and Primary Rate Interfaces
New Features in Release 11.3(2)T
Cisco Database Connection—Cisco 4500/4500-M/4700/4700-M only
Enhanced ATM VC Configuration and Management—Cisco 4500/4500-M/4700/4700-M only
New Features in Release 11.3(1)T
x Digital Subscriber Line Bridge Support
Image Deferral, Cisco IOS Release 11.3(8)T
Cisco IOS Release 11.3, 11.3 NA, and 11.3 T End of Sales and End of Engineering
Release 11.3(3a) Fixes Caveats CSCdk01707 and CSCdk08772
Forwarding of Locally Sourced AppleTalk Packets
Missing Source-Route Bridging Commands
New TACACS+ Attribute-Value (AV) Pair
Cisco IOS Software Documentation
Documentation Modules and Indexes
Release 11.3 Documentation Set
Software Configuration Tips on the Cisco Technical Assistance Center Home Page
Release Notes for the Cisco 4000 Series for Cisco IOS Release 11.3 T
August 2, 1999
These release notes for the Cisco 4000 series support Cisco IOS Release 11.3 T, up to and including Release 11.3(11)T, which is based on Cisco IOS Release 11.3. These release notes are updated as needed to describe new features, memory requirements, hardware support, software platform deferrals, changes to the microcode or modem code changes, and related documents.
For a list of software caveats that apply to Release 11.3(11)T, see the Caveats for Cisco IOS Release 11.3 T that accompanies these release notes. The caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM. For more information about software caveats, see the "Caveats" section later in this document.
Use these release notes with the cross platform Release Notes for Cisco IOS Release 11.3 on CCO and the Documentation CD-ROM.
Contents
These release notes describe the following topics:
Introduction
The Cisco 4000 series routers offer Flash Memory EPROM technology as a standard feature. Flash Memory EPROMs enable you to distribute new software releases from a central location. After the software is distributed, the routers can reboot from programs stored in local Flash memory.
All models provide a configurable modular router platform by using network processor modules (NPMs)—individual removable cards used for external network connections. Because the router's modules support many variations of protocols, line speeds, and transmission media, the Cisco 4000 series can accommodate all types of network computing environments. As Cisco introduces new modules, the Cisco 4000 series can be upgraded to keep pace with technological advances.
System Requirements
•
Determining the Version of Your Software Release
•
Memory Requirements
Table 1 Memory Requirements for the Cisco 4000 Series
c4000-i-mz
4 MB Flash
161 MB DRAM
RAM
c4000-is-mz
4 MB Flash
16 MB DRAM
RAM
c4000-is40-mz
82 MB Flash
16 MB DRAM
RAM
c4000-is56i-mz
82 MB Flash
16 MB DRAM
RAM
c4000-d-mz
4 MB Flash
161 MB DRAM
RAM
c4000-ds-mz
4 MB Flash
16 MB DRAM
RAM
c4000-js-mz
8 MB Flash
16 MB DRAM
RAM
c4000-js56i-mz
8 MB Flash
16 MB DRAM
RAM
c4000-ajs-mz
8 MB Flash
32 MB DRAM
RAM
c4000-ajs56i-mz
8 MB Flash
32 MB DRAM
RAM
c4500-i-mz
4 MB Flash
165 MB DRAM
RAM
c4500-is-mz
82 MB Flash
165 MB DRAM
RAM
c4500-is40-mz
82 MB Flash
165 MB DRAM
RAM
c4500-is56i-mz
82 MB Flash
32 MB DRAM
RAM
c4500-d-mz
4 MB Flash
165 MB DRAM
RAM
c4500-ds-mz
8 MB Flash
165 MB DRAM
RAM
c4500-js-mz
8 MB Flash
32 MB DRAM
RAM
c4500-js56i-mz
8 MB Flash
32 MB DRAM
RAM
c4500-ajs-mz
8 MB Flash
32 MB DRAM
RAM
c4500-ajs56i-mz
8 MB Flash
32 MB DRAM
RAM
c4500-aejs-mz
8 MB Flash
32 MB DRAM
RAM
c4500-aejs40-mz
8 MB Flash
32 MB DRAM
RAM
c4500-aejs56i-mz
8 MB Flash
32 MB DRAM
RAM
1 8 MB for Cisco IOS Release 11.3(3)T, and 4 MB for Cisco IOS Release 11.3(1)T and 11.3(2)T.
2 4 MB for Cisco IOS Release 11.3(1)T and 11.3(2)T.
3 This image is not supported by the Cisco 4000 router in Cisco IOS Release 11.3(1)T.
4 The following images are available in Release 11.3(9)T on the Cisco 4700-M platform: c4500-aejs-mz, c4500-aejs40-mz, c4500-ajs40-mz, c4500-aejs56i-mz, and c4500-js40-mz
5 32 MB for Cisco IOS Releases 11.3(1)T to 11.3(6)T.
Hardware Supported
Cisco IOS Release 11.3 T supports the Cisco 4000 series routers:
•
•
•
Determining the Version of Your Software Release
To determine the version of Cisco IOS software currently running on your device, log in to the router and use the show version EXEC command:
router>show versionCisco Internetwork Operating System SoftwareIOS (tm) 4000 Software (C4000-JS-MZ), Version 11.3(11)T, RELEASE SOFTWAREUpgrading to a New Software Release
For information on upgrading to a new software release, see Cisco IOS Software Release 11.3 Upgrade Paths and Packaging Simplification product bulletin on CCO at:
Service & Support: Product Bulletins: Software
Under Cisco IOS 11.3, click Cisco IOS Software Release 11.3 Upgrade Paths (#703: 12/97).
The Cisco IOS Software Release 11.3 Upgrade Paths and Packaging Simplification product bulletin does not include information specific to Cisco IOS Release 11.3 T, but provides general upgrade information that may apply to Cisco IOS Release 11.3 T.
Feature Set Tables
Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features.
Table 3 Feature Sets Supported by the Cisco 4000 Series
IP Standard Feature Sets
IP
Basic1
c4000-i-mz
Cisco 4000, Cisco 4000-M
c4500-i-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
IP Plus
Plus2
c4000-is-mz
Cisco 4000, Cisco 4000-M
c4500-is-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
IP Plus 40
Plus, Plus 403
c4000-is40-mz
Cisco 4000, Cisco 4000-M
c4500-is40-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
IP Plus IPSec 56
Plus, Plus IPSec 564
c4000-is56i-mz
Cisco 4000, Cisco 4000-M
c4500-is56i-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Desktop IBM Standard Feature Sets
Desktop IBM (IP/IPX/AppleTalk/DEC)
Basic
c4000-d-mz
Cisco 4000, Cisco 4000-M
c4500-d-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Desktop IBM Plus (IP/IPX/AppleTalk/DEC Plus)
Plus
c4000-ds-mz
Cisco 4000, Cisco 4000-M
c4500-ds-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise Standard Feature Sets
Enterprise Plus
Plus
c4000-js-mz
Cisco 4000, Cisco 4000-M
c4500-js-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise Plus IPSec 56
Plus, IPSec 56
c4000-js56i-mz
Cisco 4000, Cisco 4000-M
c4500-js56i-m
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise/APPN Standard Feature Set
Enterprise/APPN Plus
Plus
c4000-ajs-mz
Cisco 4000, Cisco 4000-M
c4500-ajs-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise/APPN Plus IPSec 56
Plus, IPSec 56
c4000-ajs56-mz
Cisco 4000, Cisco 4000-M
c4500-ajs56-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise/APPN/
DBConn/PlusPlus, DBConn
c4000-aejs-mz
Cisco 4000, Cisco 4000-M
c4500-aejs-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise/APPN Plus 40/DBConn
DBConn 40
c4500-aejs40-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
Enterprise/APPN/ IPSec 56/DBConn
DBConn, IPSec 56
c4500-aejs56i-mz
Cisco 4500, Cisco 4500-M Cisco 4700, Cisco 4700-M
1 This feature set matrix term is offered in the Basic feature set.
2 This feature set matrix term is offered in the Plus feature set
3 This feature set matrix term is offered in the encryption feature sets which consist of 40-bit (Plus 40) data encryption feature sets.
4 This feature set matrix term is offered in the encryption feature sets which consist of 56-bit (Plus 56) data encryption feature sets.
CautionCisco IOS images with strong encryption (including, but not limited to 168-bit (3DES) data encryption feature sets) are subject to United States government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders may be denied or subject to delay due to United States government regulations. When applicable, you must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com.
and list the features and feature sets supported in Cisco IOS Release 11.3 T by the Cisco 4000/4000-M and Cisco 4500/4500-M/4700/4700-M routers, respectively. and use the following conventions to identify features:
•
•
•
Note
Table 4 Feature List by Feature Set for the Cisco 4000 and Cisco 4000-M Routers
401
IPX/
AT/
DEC
IPX/AT/
DEC
Plus
Plus
Plus
APPN/
DB
ConnNo
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
–
–
–
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
(2)
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
–
–
–
–
–
–
–
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
–
–
–
–
–
–
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(4)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
–
ledgment–
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ationYes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Multipoint Virtual CircuitsNo
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Proprietary RADIUS Attributes(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
(3)
No
No
No
Yes
No
No
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
No
No
Yes
No
No
No
Yes
No
Yes
No
No
No
No
Yes
No
No
No
Yes
No
Yes
No
(3)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
XNS over ISL:–
–
–
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
(2)
No
No
No
No
No
No
No
No
No
No
No
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
(4)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1 This image is available in Cisco IOS Release 11.3(3)T and later releases. It is not available in Cisco IOS Release 11.3(1)T or 11.3(2)T.
Table 5 Feature List by Feature Set for the Cisco 4500/4500-M and Cisco 4700/4700-M Routers
401
IPX/
AT/
DEC
IPX/AT/
DEC
Plus
Plus
prise/APPN
Plus
DB
Conn 40
Conn
IPSec
56No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
–
–
–
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(2)
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
–
–
–
–
–
–
–
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
–
–
–
–
–
–
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
No
Yes
No
No
No
No
No
No
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
–
–
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
alizationYes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Multipoint Virtual CircuitsYes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Proprietary RADIUS Attributes(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
No
No
Yes
No
No
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(3)
No
No
No
Yes
No
No
No
Yes
No
Yes
No
Yes
No
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1 This image is available in Cisco IOS Release 11.3(3)T and later releases. It is not available in Cisco IOS Release 11.3(1)T or 11.3(2)T.
New and Changed Information
The following sections list the new features supported by the Cisco 4000 series in Cisco IOS Release 11.3 T. For more information about the features, see the "Related Documentation" section.
New Features in Release 11.3(5)T through Release 11.3(11)T
There were no new features supported by the Cisco 4000 series in Cisco IOS Release 11.3(5)T or later 11.3 T releases.
New Features in Release 11.3(4)T
The following new features are supported by the Cisco 4000 series in Cisco IOS Release 11.3(4)T and later releases.
IP Type of Service and Precedence for GRE Tunnels
Prior to this feature, at generic route encapsulation-based tunnel endpoints, the Type of Service (TOS) bits (including precedence bits) were not copied to the tunnel or GRE IP header that encapsulates the inner packet. Instead, those bits were set to zero. This was not a problem unless the intermediate routers between two tunnel endpoints honored TOS or precedence bits, in which case those settings were ignored.
With the advent of virtual private network (VPN) and QoS (Quality of Service) applications, it is desirable to copy the TOS bits when the router encapsulates the packets using GRE. Thus, intermediate routers between tunnel endpoints can take advantage of the QoS features such as weighted fair queuing (WFQ) and weighted random early detection (WRED).
PPP Over Frame Relay
PPP Over Frame Relay allows a router to establish end-to-end Point-to-Point (PPP) sessions over Frame Relay. IP datagrams are transported over the PPP link using RFC 1973 compliant Frame Relay framing. This feature is useful for remote users running PPP to reach their Frame Relay corporate networks.
New Features in Release 11.3(3)T
The following new features are supported by the Cisco 4000 series in Cisco IOS Release 11.3(3)T and later releases.
IBM SUPPORT:
RIF Passthru in DLSw+
By default, DLSw+ terminates the RIF for Token Ring, terminates the LLC for all media types and forwards only data across a WAN with DLSw+ and TCP/IP headers. The RIF is a field in source-route bridged frames that indicates the SRB path the frame should take when traversing a Token Ring network. In the case of an explorer packet, the RIF is a field of the source-route bridged frame that indicates the SRB path that the SRB explorer has traversed so far. The RIF is limited to seven hop counts by the IBM standards. Because DLSw+ terminates the RIF at the virtual ring, the network's scalability increases because the hop count of the packet starts over, and the packet can traverse seven additional hops. Also, RIF termination simplifies network design because ring numbers no longer have to be unique throughout an entire enterprise.
However, some environments do not function properly if the RIF is terminated. For that reason, DLSw+ now supports the RIF Passthru feature, in which the entire source-route bridged path appears in the RIF.
MANAGEMENT:
VPDN MIB and Syslog Facility
The Virtual Private Dialup Network (VPDN) Management Information Base (MIB) feature is intended to support all the tables and objects defined in "Cisco VPDN Management MIB" for the user sessions of the VPDN features. There are a number of commands that provide information and statistics through the Command Line Interface (CLI), but not Simple Network Management Protocol (SNMP); the Cisco VPDN MIB has been created to satisfy the need to provide information and statistics through SNMP.
SECURITY:
Named Method Lists for AAA Authorization & Accounting
In earlier Cisco IOS releases, only named-authentication method lists were supported under Cisco's Authentication, Authorization, and Accounting (AAA) network security services. With Cisco IOS Release 11.3(3)T, AAA has been extended to support both authorization and accounting named-method lists.
Named-method lists for authorization and accounting function the same way as those for authentication; they allow you to define different methods for authorization and accounting and apply those methods on a per-interface or per-line basis.
Additional Vendor-Proprietary RADIUS Attributes
Remote Authentication Dial-In User Server (RADIUS) is an access server authentication, authorization, and accounting protocol originally developed by Livingston, Inc. Although an Internet Engineering Task Force (IETF) draft standard for RADIUS specifies a method for communicating vendor-proprietary information between the network access server and the RADIUS server, some vendors have extended the RADIUS attribute set in a unique way. In this release, Cisco IOS software introduces support for additional vendor-proprietary RADIUS attributes.
For a complete list of supported IETF and vendor-proprietary RADIUS attributes, refer to the "RADIUS Attributes" appendix in the Cisco IOS Release 11.3 Security Configuration Guide.
Automated Double Authentication
The automated double authentication feature enhances the existing double authentication feature.
Previously, with the existing double authentication feature, a second level of user authentication is achieved when the user Telnets to the network access server or router and enters a username and password. Now, with automated double authentication, the user does not have to Telnet anywhere but instead responds to a dialog box that requests a username and password or PIN.
(For information about the existing double authentication feature, refer to the "Configuring Authentication" chapter of the Cisco IOS Release 11.3 Security Configuration Guide.)
Certificate Authority Interoperability
Certificate Authority (CA) interoperability is provided in support of the IP Security (IPSec) standard. CA interoperability permits Cisco IOS devices and CA devices to communicate so that your Cisco IOS device can obtain and use digital certificates from the CA. Although IPSec can be implemented in your network without the use of a CA, using a CA provides manageability and scalability for IPSec.
For background and configuration information for IPSec, see the "IPSec Network Security" feature documentation.
Internet Key Exchange Security Protocol
ISAKMP/Oakley is a key management protocol used with the IPSec standard. IPSec is an IP security feature that provides robust authentication and encryption of IP packets.
IPSec can be configured without ISAKMP/Oakley, but ISAKMP/Oakley enhances IPSec by providing additional features, flexibility, and ease of configuration for the IPSec standard.
ISAKMP/Oakley is a hybrid protocol which implements the Oakley key exchange inside the ISAKMP framework.
IPSec Network Security
IPSec is a framework of open standards developed by the Internet Engineering Task Force (IETF).
IPSec provides security for transmission of sensitive information over unprotected networks such as the Internet. IPSec acts at the network layer, protecting and authenticating IP packets between participating IPSec devices ("peers") such as Cisco routers.
IPSec provides the following network security services:
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With IPSec, data can be transmitted across a public network without fear of observation, modification, or spoofing. This enables applications such as virtual private networks (VPNs), extranets, and remote user access.
IPSec services are similar to those provided by Cisco Encryption Technology, a proprietary security solution introduced in Cisco IOS Software Release 11.2. (The IPSec standard was not yet available at Release 11.2.) However, IPSec provides a more robust security solution, and is standards-based.
MS-CHAP Support
Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) is the Microsoft version of CHAP and is an extension to RFC 1994. Like the standard version of CHAP, MS-CHAP is used for PPP authentication; in this case, authentication occurs between a PC using Microsoft Windows NT or Microsoft Windows 95 and a Cisco router or access server acting as a network access server (NAS).
MS-CHAP differs from the standard CHAP as follows:
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Depending on the security protocols you have implemented, PPP authentication using MS-CHAP can be used with or without Authentication, Authorization and Accounting (AAA) security services. If you have enabled AAA, PPP authentication using MS-CHAP can be used with both TACACS+ and RADIUS. Two new vendor-specific RADIUS attributes (IETF Attribute 26) were added to enable RADIUS to support MS-CHAP.
For a complete list of supported IETF and vendor-proprietary RADIUS attributes, refer to the "RADIUS Attributes" appendix in the Cisco IOS Release 11.3 Security Configuration Guide.
WAN SERVICES
Always On/Dynamic ISDN (AO/DI)
Always On/Dynamic ISDN (AO/DI) is an on-demand service that optimizes the use of an existing Integrated Services Digital Network (ISDN) signaling channel (D channel) to transport X.25 traffic. The X.25 D channel call is placed from the subscriber to the packet data service provider. Multilink and TCP/IP protocols are encapsulated within the X.25 logical circuit carried by the D channel. The bearer channels (B channels) use the Multilink protocol without the standard Q.922 and X.25 encapsulations, and invoke additional bandwidth as needed. AODI takes full advantage of existing packet handlers at the central office by using an existing D channel to transport the X.25 traffic. The link associated with the X.25 D channel packet connection is used as the primary link of the Multilink protocol. The D channel is a connectionless, packet oriented link between the Customer Premise Equipment (CPE) and the central office. Since the D channel is always available, it is possible to in turn offer "always available" services. On-demand functionality is achieved by using the B channels to temporarily boost data throughput and are disconnected after use.
Microsoft Point-to-Point Compression (MMPC)
Microsoft Point-to-Point Compression (MPPC) is a scheme used to compress Point-to-Point Protocol (PPP) packets between Cisco and Microsoft client devices. The MPPC algorithm is designed to optimize processor and bandwidth utilization in order to support multiple simultaneous connections. The MPPC algorithm uses a Lempel-Ziv (LZ) based algorithm with a continuous history buffer, called a dictionary.
Multiple ISDN Switch Types
The Multiple ISDN Switch Types feature allows you to configure more than one ISDN switch type per router. You can apply an ISDN switch type on a per interface basis, thus extending the existing global isdn switch-type command to the interface level. This allows Basic Rate Interfaces (BRI) and Primary Rate Interfaces (PRI) to run simultaneously on platforms that support both interface types.
The isdn tei command is also extended to the interface level. Terminal endpoint negotiation (TEI) determines when Layer 2 is activated (powerup or first-call).
National ISDN Switch Types for Basic Rate and Primary Rate Interfaces
National ISDN Switch Types for Basic Rate and Primary Rate Interfaces introduces changes to ISDN switch types for Primary Rate Interfaces (PRI) and Basic Rate Interfaces (BRI) as follows:
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New Features in Release 11.3(2)T
The following new features are supported by the Cisco 4000 series in Cisco IOS Release 11.3(2)T and later releases.
IBM
Cisco Database Connection—Cisco 4500/4500-M/4700/4700-M only
The Cisco Database Connection feature enables Cisco routers to implement IBM's distributed relational database architecture (DRDA) level 3 over TCP/IP. The Cisco router with Database Connection exists in the TCP/IP network, and clients use the Database Connection IP address and port on the router to connect to the IBM host system that exists in the SNA network.
When Database Connection is configured on a router, client-based Open Database Connectivity (ODBC) applications can connect to IBM's family of IBM D2 relational databases, which include:
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The router with Database Connection converts DRDA packets over TCP/IP to DRDA packets over APPC (LU 6.2) and then routes them to DB2 databases. Database Connection runs as a TCP/IP daemon on the router, accepting DRDA client connections over TCP/IP. When a client connects to the database on an IBM mainframe host, Database Connection allocates an APPC conversation over SNA to an IBM server, and acts as a gateway between DRDA over TCP/IP and DRDA over APPC.
INTERNET
DRP Server Agent Enhancements
The DRP Server Agent enhancements are as follows:
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MULTIMEDIA
PIM Version 2
Protocol-Independent Multicast (PIM) Version 2 includes the following improvements over PIM Version 1:
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PIM Version 1, together with the Auto-RP feature, can perform the same tasks as the PIM Version 2 BSR. However, Auto-RP is a standalone protocol, separate from PIM Version 1, and is Cisco proprietary. PIM Version 2 is a standards track protocol in the Internet Engineering Task Force (IETF).
Cisco's PIM Version 2 implementation allows good interoperability and transition between Version 1 and Version 2. You can upgrade to PIM Version 2 incrementally. PIM Versions 1 and 2 can be configured on different routers within one network. Internally, all routers on a shared media network must run the same PIM version. Therefore, if a PIM Version 2 router detects a PIM Version 1 router, the Version 2 router downgrades itself to Version 1 until all Version 1 routers have been shutdown or upgraded.
PIM uses the BSR to discover and announce RP-set information for each group prefix to all the routers in a PIM domain. This is the same function accomplished by Auto-RP, but the BSR is part of the PIM Version 2 specification. The BSR mechanism interoperates with Auto-RP.
To avoid a single point of failure, you can configure several candidate BSRs in a PIM domain. A BSR is elected among the candidate BSRs automatically; they use bootstrap messages to discover which BSR has the highest priority. This router then announces to all PIM routers in the PIM domain that it is the BSR.
Routers that are configured as candidate RPs then unicast to the BSR the group range for which they are responsible. The BSR includes this information in its bootstrap messages and disseminates it to all PIM routers in the domain. Based on this information, all routers will be able to map multicast groups to specific RPs. As long as a router is receiving the bootstrap message, it has a current RP map.
WAN OPTIMIZATION
Enhanced ATM VC Configuration and Management—Cisco 4500/4500-M/4700/4700-M only
The Enhanced ATM VC Configuration and Management feature set includes new and enhanced capabilities that allow you to create and manage ATM PVCs and SVCs with more ease and improved integrity. This feature set includes the following five subfeatures:
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Frames-Per-Token Limit
This feature allows the interface to transmit multiple frames per token, instead of only a single frame at a time. Users can specify the maximum number of frames to be transmitted with each token capture by using the fddi frames per token command. In certain network configurations this can improve throughput.
WAN SERVICES
Dialer Watch
Dialer Watch is a backup feature that integrates dial backup with routing capabilities. Prior dial backup implementations used the following conditions to trigger backup:
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Prior backup implementations may not have supplied optimum performance on some networks, such as those using Frame Relay multipoint subinterfaces or Frame Relay connections that do not support end-to-end LMI.
Dialer Watch provides reliable connectivity without relying solely on defining interesting traffic to trigger outgoing calls at the central router. Dialer Watch uses the convergence times and characteristics of dynamic routing protocols. Integrating backup and routing features enables Dialer Watch to monitor every deleted route. By configuring a set of watched routes that define the primary interface, you are able to monitor and track the status of the primary interface as watched routes are added and deleted. Monitoring the watched routes is done in the following sequence:
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MS Callback
The MS Callback feature provides client-server callback services for Microsoft Windows 95 and Microsoft Windows NT clients. MS Callback supports the Microsoft Callback Control Protocol (MSCB). MSCB is Microsoft's proprietary protocol that is used by Windows 95 and Windows NT clients. MS Callback supports negotiated PPP Link Control Protocol (LCP) extensions initiated and agreed upon by the Microsoft client. MS Callback is added to existing PPP Callback functionality. Therefore, if you configure your Cisco access server to perform PPP Callback using Cisco IOS Release 11.3(2)T or later, MS Callback is automatically available.
MS Callback supports AAA security models using a local database or AAA server.
MSCB uses LCP callback options with suboption type 6. The Cisco MS Callback feature supports clients with a user-specified callback number and server specified (preconfigured) callback number.
MS Callback does not affect non-Microsoft machines that implement standard PPP LCP extensions as described in RFC 1570. In this scenario, MS Callback is transparent.
New Features in Release 11.3(1)T
The following new features are supported by the Cisco 4000 series in Cisco IOS Release 11.3(1)T and later releases.
SNMP Informs Requests
This feature allows routers to send inform requests to SNMP managers. Routers can send notifications to SNMP managers when particular events occur. For example, an agent router may send a message to a manager when the agent router experiences an error condition.
SNMP notifications can be sent as traps or inform requests. Traps are unreliable because the receiver does not send any acknowledgment when it receives a trap. The sender cannot determine if the trap was received. However, an SNMP manager that receives an inform request acknowledges the message with an SNMP response PDU. If the manager does not receive an inform request, it does not send a response. If the sender never receives a response, the inform request can be sent again.
Thus, informs are more likely to reach their intended destination. Because they are more reliable, informs consume more resources in the router and network. Unlike a trap, which is discarded as soon as it is sent, an inform request must be held in memory until a response is received or the request times out.
Also, traps are sent only once, while an inform request may be retried several times. The retries increase traffic and contribute to a higher overhead on the network. Thus, traps and inform requests provide a trade-off between reliability and resources. If it is important that the SNMP manager receives every notification, use inform requests. On the other hand, if you are concerned about traffic on your network or memory in the router, and you do not need to receive every notification, use traps.
x Digital Subscriber Line Bridge Support
This feature enables you to configure a router for intelligent bridge flooding for x digital subscriber line and other bridge applications.
Important Notes
Image Deferral, Cisco IOS Release 11.3(8)T
Cisco IOS Release 11.3(8)T was deferred to Release 11.3(8)T1 on all software images to incorporate corrections to the following caveats:
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For more information on these caveats, refer to Bug Navigator II, which is available at http://www.cisco.com/support/bugtools. On CCO, click this path:
Service & Support: Online Technical Support: Software Bug Toolkit: Bug Navigator II
Cisco IOS Release 11.3, 11.3 NA, and 11.3 T End of Sales and End of Engineering
End of Engineering (EOE) means there are no more regularly scheduled maintenance releases. The following maintenance release scheduled on the EOE date are only available through CCO and Field Service Operations—not through manufacturing:
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EOS and EOE releases are subject to change. For the most up-to-date information on the status of EOS or EOE, see End of Sales and End of Engineering for Cisco IOS Software Releases product bulletin on CCO.
Ongoing support for functionality in Releases 11.3, 11.3 NA, and 11.3 T is available in Cisco IOS Release 12.0(3)T and later maintenance releases of Cisco IOS Release 12.0 on CCO at:
Service & Support: Product Bulletins: Software
Under Cisco IOS 11.3, click on End of Sales and End of Engineering for Cisco IOS Software Releases 11.3 and 11.3 T (#847: 12/98) or Cisco IOS Software 11.3 NA EOS and EOE (#849:12/98)
Release 11.3(3a) Fixes Caveats CSCdk01707 and CSCdk08772
The Cisco 7500 RSP2 and RSP4 products in Cisco IOS Releases 11.3(1) through 11.3(3) were deferred due to a severe defect. It was determined that this caveat was significant enough to merit a software rebuild. The rebuild includes the caveat fix and is renumbered to 11.3(3a).
The defect is bug CSCdk01707 and is described as follows:
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Software Releases affected: This caveat affects all systems configured with dual RSPs (HSA feature). All "v" images for the following Cisco IOS Releases have been deferred: 11.1(18.1)CA through 11.1(18.2)CA, 11.1(16.3)CC through 11.1(17.4)CC, 11.1(17)CT, 11.2(12.3)P through 11.2(13.4)P, 11.3(1) through 11.3(3), and 11.3(1)T through 11.3(3)T.
Solution: To eliminate the problems mentioned, we strongly recommend that you download and install one of the following Cisco IOS software release updates: 11.1(18)CA, 11.1(18)CC, 11.1(18)CT, 11.2(14)P, 11.3(3a) and 11.3(3a)T.
[CSCdk01707]
CSCdk08772 is a duplicate of CSCdk01707 and is described as follows:
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CSCdk01707 was caused by CSCdj36366, which is described as follows:
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Release 11.3(3a) and all subsequent releases of Cisco IOS Release 11.3 software include the fix for this caveat.
Enabling IPX Routing
The Token Ring interface is reset whenever IPX routing is enabled on that interface.
Booting Cisco 4000 Routers
You must use the Cisco Release 9.14 rxboot image for Cisco 4000 routers because the Release 11.0 rxboot image is too large to fit in the ROMs. (Note that rxboot image size is not a problem for Cisco 4500 routers.)
However, because the Release 9.14 rxboot image does not recognize new network processor modules, such as the Multiport Basic Rate Interface (MBRI), its use causes two problems:
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Bad interface specificationNo interface specified - IP addressBad interface specificationNo interface specified - IP addressUsing LAN Emulation (LANE)
Note the following information regarding the LAN Emulation (LANE) feature in Cisco IOS Release 11.3:
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Forwarding of Locally Sourced AppleTalk Packets
Cisco's implementation of AppleTalk does not forward packets with local-source and destination network addresses. This behavior does not conform to the definition of AppleTalk in Apple Computer's Inside AppleTalk publication. However, this behavior is designed to prevent any possible corruption of the AppleTalk Address Resolution Protocol (AARP) table in any AppleTalk node that is performing MAC-address gleaning.
Using Source-Route Transparent Bridging (SRT) and Source-Route Bridging (SRB) on Cisco 2500 and Cisco 4000 Routers
Certain products containing the Texas Instruments TMS380C26 Token Ring controller do not support source-route transparent bridging (SRT). SRT is the concurrent operation of SRB and transparent bridging on the same interface. The affected products, shipped between March 30, 1994, and January 16, 1995, are the Cisco 4000 NP-1R, Cisco 4000 NP-2R, Cisco 2502, Cisco 2504, Cisco 2510, Cisco 2512, Cisco 2513, and Cisco 2515.
Units shipped before March 30, 1994, or after January 16, 1995, are not affected. They use the Texas Instruments TMS380C16 Token Ring controller, which supports SRT.
SRT support is necessary in two situations:
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As of Cisco IOS Release 10.3(1), SRB in the following Cisco IOS feature sets is no longer supported: IP, IP/IPX, and Desktop. To use SRB, you need one of the following feature sets: IP/IBM base, IP/IPX/IBM base, IP/IPX/IBM/APPN, Desktop/IBM base, Enterprise, or Enterprise/APPN. In most non-IBM Token Ring environments, the multiring feature in IP, IP/IPX, and Desktop eliminates the need for IP/IBM base, IP/IPX/IBM base, IP/IPX/IBM/APPN, Desktop/IBM base, Enterprise, or Enterprise/APPN.
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 Cisco Connection Online (CCO) or on the Documentation CD-ROM.
New TACACS+ Attribute-Value (AV) Pair
A new authorization feature was added in Cisco IOS Release 11.3(1) that allows for separate configuration and authorization of Multilink PPP. This can cause MLP authorization to fail in TACACS+ servers that do not include the relevant authorization permissions in the configuration.
For TACACS+, the following attribute-value (AV) pair should be added for all users who are allowed to negotiate Multilink PPP:
service = ppp protocol = multilink {
Caveats
Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.
For information on caveats in Cisco IOS Release 11.3 T, see Caveats for Cisco IOS Release 11.3 T on CCO and the Documentation CD-ROM.
All caveats in Release 11.3 are also in Release 11.3 T.
For information on caveats in Cisco IOS Release 11.3, see the "Important Notes and Caveats for Release 11.3" section in the Cross-Platform Release Notes for Cisco IOS Release 11.3 on CCO and the Documentation CD-ROM. These release notes list severity 1 and 2 caveats affecting all maintenance releases.
Note
Related Documentation
The following sections describe the documentation available for the Cisco 4000 series routers. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are only available online.
Use these release notes with these documents:
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Release-Specific Documents
The following documents are specific to Release 11.3 and are located on CCO and the Documentation CD-ROM:
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On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Release Notes for Cisco IOS Release 11.3
On the Documentation CD-ROM:
Cisco IOS Software Configuration: Cisco IOS Release 11.3: Release Notes for Cisco IOS Release 11.3
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Service & Support: Technical Documents
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On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Product Specific Release Notes for Cisco IOS Release 11.3: Caveats for Cisco IOS Release 11.3 T
On the Documentation CD-ROM:
Cisco IOS Software Configuration: Cisco IOS Release 11.3: Product Specific Release Notes for Cisco IOS Release 11.3: Caveats for Cisco IOS Release 11.3 T
Note
Platform-Specific Documents
The documents listed below are available for the Cisco 4000 series routers. These documents are also available online on CCO and on the Documentation CD-ROM.
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On CCO:
Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 4000 Series Routers
On the Documentation CD-ROM:
Access Servers and Access Routers: Modular Access Routers: Cisco 4000 Series Routers
Feature Modules
Feature modules describe new features supported by Release 11.3 T 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 module information is incorporated in the next printing of the Cisco IOS documentation set.
On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
Cisco IOS Software Documentation
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents which are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.
Documentation Modules and Indexes
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. 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. Each configuration guide can be used with its corresponding command reference.
On CCO and the Documentation CD-ROM, two master hot-linked indexes provide indexing information for the Cisco IOS software documentation set.
On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Configuration Guide Master Index or Command Reference Master Index
On the Documentation CD-ROM:
Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Configuration Guide Master Index or Command Reference Master Index
To reach documentation related to an index entry, click on the page number following the entry.
Release 11.3 Documentation Set
details the contents of the Cisco IOS Release 11.3 software documentation set. The document set is available in electronic form, and also in printed form upon request.
Note
On CCO:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3
On the Documentation CD-ROM:
Cisco IOS Software Configuration: Cisco IOS Release 11.3
Note
Service and Support
For service and support for a product purchased from a reseller, contact the reseller, who offers a wide variety of Cisco service and support programs described in "Service and Support" of Cisco Information Packet shipped with your product.
Note
For service and support for a product purchased directly from Cisco, use CCO.
Software Configuration Tips on the Cisco Technical Assistance Center Home Page
If you have a CCO login account, you can access the following URL, which contains links and tips on configuring your Cisco products:
http://www.cisco.com/public/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your Web browser to CCO and click on this path: Products & Technologies: Products: Technical Tips.
The following sections are provided from the Technical Tips page:
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Cisco Connection Online
Cisco Connection Online (CCO) is 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 the 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 reach CCO in the following ways:
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For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
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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 may 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 reach 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.
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