Table of Contents

Contents
Introduction
System Requirements

Memory Requirements
Hardware Supported
Determining Your Software Release
Upgrading to a New Release
Other Firmware Code
Feature Set Tables

New and Changed Information

New Features in Cisco IOS Release 12.0(5)XK1

Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 Series Routers
Multiport T1/E1ATM Network Modules with Inverse Multiplexing over ATM on Cisco 2600 Series Routers

Important Notes

Deprecated MIBs

Caveats

Caveats for Release12.0(5)XK1

Basic System Services
IBM Connectivity
Interfaces and Bridging

Resolved Caveats for Release12.0(5)XK1

Related Documentation

Release-Specific Documents
Platform-Specific Documents
Feature Modules
Cisco IOS Software Documentation Set

Documentation Modules
Cisco IOS Release 12.0 Documentation Set

Service and Support

Software Configuration Tips on Cisco's Technical Assistance Center Home Page

Cisco Connection Online
Documentation CD-ROM

Release Notes for Cisco 2600 Series for
Cisco IOS Release 12.0(5)XK1

September 21, 1999

These release notes for Cisco 2600 series support Cisco IOS Release 12.0(5)XK1 and are updated as needed to describe new features, memory requirements, hardware support, software platform deferrals, microcode or modem code changes, and related document changes.

For a list of the software caveats that apply to Cisco IOS Release 12.0(5)XK1, see "Caveats" section.

Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.0 on Cisco Connection Online (CCO) and the Documentation CD-ROM.

Contents

These release notes describe the following topics:

• Introduction

• System Requirements

• New and Changed Information

• Important Notes

• Caveats

• Related Documentation

• Service and Support

• Cisco Connection Online

• Documentation CD-ROM

Introduction

Cisco Systems extends enterprise-class versatility, integration, and power to branch offices with the Cisco 2600 series modular access router family. The Cisco 2600 series routers are modular access routers designed to enable customers to easily adopt future technologies and scale to accommodate network expansion. The Cisco 2600 series shares modular interfaces with the Cisco 1600, Cisco 1700, and Cisco 3600 series, providing a solution to meet today's branch office needs for applications such as:

• Secure Internet/intranet access

• Multiservice voice/data integration

• Analog and digital dial access services

• Virtual Private Network (VPN) access

• Inter-VLAN routing

The Cisco 2600 series modular architecture provides the versatility needed to adapt to changes in network technology as new services and applications become available. Driven by a powerful RISC processor, the Cisco 2600 series supports the advanced Quality of Service (QoS), security, and network integration features required in today's evolving enterprise networks.

System Requirements

This section describes the system requirements for Cisco IOS Release 12.0(5)XK1:

• Memory Requirements

• Hardware Supported

• Determining Your Software Release

• Upgrading to a New Release

• Feature Set Tables

Memory Requirements

Enter
Table 1: Memory Requirements for the Cisco 2600 Series

Feature Set by Platform	Image Name	Required Flash Memory	Required DRAM Memory	Runs From
IP	c2600-i-mz	4 MB	20 MB	RAM
IP/FW/IDS Plus/IP Sec 3DES	c2600-ik2o3s-mz	8 MB	32 MB	RAM
IP Plus/IP Sec 3DES	c2600-ik2s-mz	8 MB	32 MB	RAM
IP/FW/IDS	c2600-io3-mz	8 MB	32 MB	RAM
IP/FW/IDS Plus/IPSec 56	c2600-io3s56i-mz	8 MB	32 MB	RAM
IP Plus	c2600-is-mz	8 MB	32 MB	RAM
IP Plus IPsec 56	c2600-is56i-mz	8 MB	32 MB	RAM
IP/H323	c2600-ix-mz	8 MB	32 MB	RAM
IP/IPX/AT/DEC	c2600-d-mz	8 MB	24 MB	RAM
IP/IPX/AT/DEC Plus	c2600-ds-mz	8 MB	32 MB	RAM
IP/IPX/AT/DEC/FW/IDS Plus	c2600-do3s-mz	8 MB	32 MB	RAM
Enterprise Plus	c2600-js-mz	8 MB	32 MB	RAM
Enterprise Plus/IPSec 3DES	c2600-jk2s-mz	8 MB	40 MB	RAM
Enterprise/FW/IDS Plus/IPSec 3DES	c2600-jk2o3s-mz	8 MB	40 MB	RAM
Enterprise/FW/IDS Plus/IPSec 56	c2600-jo3s56i-mz	16 MB	40 MB	RAM
Enterprise Plus/IPSec 56	c2600-js56i-mz	8 MB	40 MB	RAM
Remote Access Server	c2600-c-mz	4 MB	20 MB	RAM

Hardware Supported

Cisco IOS Release 12.0(5)XK1 supports the Cisco 2600 series routers:

• Cisco 2610

• Cisco 2611

• Cisco 2612

• Cisco 2613

• Cisco 2620

• Cisco 2621

Table 2: Supported Interfaces on the Cisco 2600 Series

Interface, Network Module, or Data Rate1		Platforms Supported
LAN Interfaces2	1- or 2-port Ethernet (10BaseT)	Cisco 2610, Cisco 2611, Cisco 2612
	1-port Token Ring (RJ-45)	Cisco 2612, Cisco 2613
LAN Network Modules	1-port Ethernet	All Cisco 2600 series platforms
	4-port Ethernet	All Cisco 2600 series platforms
	1-port ATM-25 RJ-45 interface	All Cisco 2600 series platforms
Serial Network Modules	16- or 32-port Asynchronous	All Cisco 2600 series platforms
	4- or 8-port Asynchronous/ Synchronous Serial low speed (128 kbps max)	All Cisco 2600 series platforms
Multiport T1/E1 ATM Network Modules with Inverse Multiplexing over ATM (IMA)3	4-port T1 ATM network module with IMA (NM-4T1-IMA (=))	All Cisco 2600 series platforms
	4-port E1 ATM network module with IMA (NM-4E1-IMA (=)	All Cisco 2600 series platforms
	8-port T1 ATM network module with IMA (NM-8T1-IMA (=))	All Cisco 2600 series platforms
	8-port E1 ATM network module with IMA (NM-8E1-IMA (=)	All Cisco 2600 series platforms
Digital T1/E1 Packet Voice Trunk Network Modules and Spare Components	1-port, 24-channel T1 voice/fax module, supports 24 channels of medium-complexity codecs: G.729a/b, G.726, G.711 and fax or 12 channels of G.726, G.729, G.723.1, G.728, G.729a/b, G.711, and fax. Consists of one NM-HDV, two PVDM-12s, and one VWIC-1MFT-T14. Part number: NM-HDV-1T1-24(=)	All Cisco 2600 series platforms
	1-port, enhanced 24-channel T1 voice/fax module, supports 24 channels of high- and medium-complexity codecs: G.729a/b, G.726, G.729, G.728, G.723.1, G.711, and fax. Consists of one NM-HDV, four PVDM-12s, and one VWIC-1MFT-T14. Part number: NM-HDV-1T1-24E(=)	All Cisco 2600 series platforms
	2-port, 48-channel T1 voice/fax module, supports add/drop multiplexing (drop and insert); 48 channels of medium-complexity codecs: G.729a/b, G.726,G.711, and fax; or 24 channels of G726, G729, G723.1, G.728, G729a/b, G711, and fax. Consists of one NM-HDV, four PVDM-12, and one VWIC-2MFT-T1-DI4. Part number: NM-HDV-2T1-48(=)	All Cisco 2600 series platforms
	High-density voice/fax network module spare (NM-HDV=)	Digital T1/E1 Packet Voice Trunk Network Modules spare component
	12-channel packet voice DSP module upgrade spare (PVDM-12=)	Digital T1/E1 Packet Voice Trunk Network Modules spare component
	1-port RJ-48 MultiFlex Trunk - T1 (VWIC-1MFT-T1(=))4	Digital T1/E1 Packet Voice Trunk Network Modules spare component
	2-port RJ-48 MultiFlex Trunk - T1 (VWIC-2MFT-T1(=))4	Digital T1/E1 Packet Voice Trunk Network Modules spare component
	2-port RJ-48 MultiFlex Trunk with drop and insert - T1 (VWIC-2MFT-T1-DI(=))4	Digital T1/E1 Packet Voice Trunk Network Modules spare component
Dial, ISDN and Channelized Serial Network Modules	1- or 2-port Channelized T1/ISDN PRI	All Cisco 2600 series platforms
	1- or 2-port Channelized T1/ISDN PRI with CSU	All Cisco 2600 series platforms
	1- or 2-port Channelized E1/ISDN PRI balanced	All Cisco 2600 series platforms
	1- or 2-port Channelized E1/ISDN PRI unbalanced	All Cisco 2600 series platforms
	4-or 8-port ISDN BRI S/T interface	All Cisco 2600 series platforms
	4- or 8-port ISDN BRI U (NT1) interface	All Cisco 2600 series platforms
	8- or 16-port Analog modems	All Cisco 2600 series platforms
E1/T1 Multiflex Voice/WAN Interface Cards3	1-Port T1 multiflex trunk interface (VWIC-1MFT-T1)	All Cisco 2600 series platforms
	1-Port E1 multiflex trunk interface (VWIC-1MFT-E1)	All Cisco 2600 series platforms
	2-Port T1 multiflex trunk interface (VWIC-2MFT-T1)	All Cisco 2600 series platforms
	2-Port E1 multiflex trunk interface (VWIC-2MFT-E1)	All Cisco 2600 series platforms
	2-Port T1 multiflex trunk interface with Drop and Insert (VWIC-2MFT-T1-DI)	All Cisco 2600 series platforms
	2-Port E1 multiflex trunk interface with Drop and Insert (VWIC-2MFT-E1-DI)	All Cisco 2600 series platforms
Voice/Fax Interface Cards	1- or 2- Voice interface card slots	All Cisco 2600 series platforms
	2-port FXS Voice/Fax interface card5	All Cisco 2600 series platforms with Voice/Fax network modules
	2-port E&M Voice/Fax interface card3	All Cisco 2600 series platforms with Voice/Fax network modules
	2-port FXO Voice/Fax interface card3	All Cisco 2600 series platforms Voice/Fax network modules
WAN Interface Cards	1-port ISDN BRI S/T interface (requires external NT1)	All Cisco 2600 series platforms
	1-port ISDN BRI (NT1) U	All Cisco 2600 series platforms
	1-port 56/64-kbps DSU/CSU	All Cisco 2600 series platforms
	1-port T1/Fractional T1 with DSU/CSU	All Cisco 2600 series platforms
	1-port High-Speed Serial (up to 2.048 Mbps)	All Cisco 2600 series platforms
	2-port Dual High-speed Serial (up to 2.048 Mbps; Asynchronous/ Synchronous support)	All Cisco 2600 series platforms
	2-port Asynchronous/ Synchronous (up to 128 kbps)	All Cisco 2600 series platforms
Advanced Integration Modules	Data Compression AIM (up to 8.192 Mbps)	All Cisco 2600 series platforms

1The Voice/Fax and ATM-25 network modules require Cisco IOS Plus feature sets. 2The 1- or 2-port 10/100 Ethernet LAN interface for the Cisco 2621 and Cisco 2621 series routers is only available in Cisco IOS Release 12.0 XC and later. 3Requires the Cisco IOS Plus feature sets. 4See E1/T1 Multiflex Voice/WAN Interface Cards in this table. 5Requires the NM-1V or NM-2V network module.

Determining Your Software Release

To determine the version of Cisco IOS software running on a Cisco 2600 series router, log in to the router and enter the show version EXEC command:

router>show version
Cisco Internetwork Operating System Software 
IOS (tm) 2600 Software (c2600-i-mz), Version 12.0(5)XK1, RELEASE SOFTWARE
 

Upgrading to a New Release

For information on upgrading to Cisco IOS Release 12.0 T, see Cisco IOS Software Release 12.0T Upgrade Paths and Packaging Simplification product bulletin located on CCO at:

Service & Support: Product Bulletins: Software.

Under Cisco IOS 12.0, click Cisco IOS Software Release 12.0T Upgrade (#819: 1/99).

This product bulletin does not contain information specific to Cisco IOS Release 12.0(5)XK1 but provides general upgrade information that may apply to Cisco IOS Release 12.0(5)XK1.

Other Firmware Code

The latest version of analog modem firmware for the Cisco 2600 series allows support of the internal analog modems in a wide range of countries. Firmware version 1.0.1 extends support internationally starting with Cisco IOS Release 11.3(5)T and later.

On CCO:

Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers: Analog Modem Firmware

On the Documentation CD-ROM:

Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers: Analog Modem Firmware

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 2600 Series

Feature Sets		Feature Set Matrix Term	Software Image	Platforms
IP Standard Feature Sets	IP	Basic	c2600-i-mz	All Cisco 2600 series platforms
	IP Plus	Basic Plus	c2600-is-mz	All Cisco 2600 series platforms
	IP Plus IPSec 3DES	Plus IPSec 3DES	c2600-ik2s-mz	All Cisco 2600 series platforms
	IP Plus IPsec 56	Plus IPsec 56	c2600-is56i-mz	All Cisco 2600 series platforms
	IP/FW/IDS	Basic FW/IDS	c2600-io3-mz	All Cisco 2600 series platforms
	IP/FW/IDS Plus IPSec 3DES	Basic FW/IDS Plus IPSec 3DES	c2600-ik2o3s-mz	All Cisco 2600 series platforms
	IP/FW/IDS Plus IPSec 56	Basic FW/IDS Plus IPSec 56	c2600-io3s56i-mz	All Cisco 2600 series platforms
IP/IPX/AppleTalk/ DEC Standard Feature Sets	IP/IPX/AppleTalk/ DEC	Basic	c2600-d-mz	All Cisco 2600 series platforms
	IP/IPX/AppleTalk/ DEC Plus	Basic Plus	c2600-ds-mz	All Cisco 2600 series platforms
	IP/IPX/AT/DEC/FW/IDS Plus	Basic FW/IDS Plus	c2600-do3s-mz	All Cisco 2600 series platforms
Enterprise Standard Feature Sets	Enterprise Plus	Plus	c2600-js-mz	All Cisco 2600 series platforms
	Enterprise Plus IPSec 3DES	Plus IPSec 3DES	c2600-jk2s-mz	All Cisco 2600 series platforms
	Enterprise Plus IPsec 56	Plus IPsec 56	c2600-js56i-mz	All Cisco 2600 series platforms
	Enterprise/FW/IDS Plus IPSec 56	FW/IDS Plus IPSec 56	c2600-jo3s56i-mz	All Cisco 2600 series platforms
	Enterprise/FW/IDS Plus IPSec 3DES	FW/IDS Plus IPSec 3DES	c2600-jk2o3s-mz	All Cisco 2600 series platforms
Remote Access Server Feature Set	Remote Access Server	Basic	c2600-c-mz	All Cisco 2600 series platforms

Caution Cisco 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, the purchaser or user must obtain local import and use authorizations for all encryption strengths. Contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com.

Table 4 and Table 5 list the features and feature sets supported by the Cisco IOS Release 12.0(5)XK1 for the Cisco 2600 series.

• Table 4---IP and IP/IPX/AppleTalk/DEC Feature Sets and Features for the Cisco 2600 Series

• Table 5---Enterprise and Enterprise Plus Feature Sets and Features for the Cisco 2600 Series

The following tables use the following conventions to identify features:

• Yes---The feature is supported in the feature set.

• No---The feature is not supported in the feature set.

• In---The Cisco IOS release that first introduces a feature. For example, (1) means a feature is introduced in 12.0(1)T. If a cell is empty in this column, the feature was included in the initial base release.

Table 4: Feature List by Feature Set for the Cisco 2600 Series---Part 1 of 2

Features	Feature Sets
	In	IP	IP Plus	IP Plus IPSec 56	IP Plus IPSec 3DES	IP/ FW/ IDS	IP/ FW IDS Plus IPSec 56	IP/ FW/ IDS Plus IPSec 3DES	IP/ IPX/ AT/ DEC	IP/ IPX/ AT/ DEC Plus	IP/ IPX/ AT/ DEC/ FW/ IDS Plus
New Features in 12.0(5)XK1
Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 Series Routers	(5)XK	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Multiport T1/E1 ATM Network Modules with Inverse Multiplexing	(5)XK	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
New Features in 12.0(4)T
Annex G (X.25) over Frame Relay	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Async over UDP	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
CLI String Search	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
CNS Client for Cisco IOS Software	(4)	No	No	No	No	No	No	No	No	No	No
DLSw RSVP	(4)	No	Yes	Yes	Yes	No	Yes	No	No	Yes	Yes
Easy IP Phase 2-DHCP Server	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Cisco 2620 and Cisco 2621	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Flow Random Early Detection	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
8Mbps Compression AIM	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
IOX Firewall Feature Set	(4)	No	No	No	No	Yes	Yes	Yes	No	No	Yes
IOS IEEE 802.1Q Support	(4)	No	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes
IOS STP Enhancements	(4)	No	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes
ISDN MIB RFC2127	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
L2TP	(4)	No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
1FE2P NM	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Mobile IP	(4)	No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
Modem over ISDN BRI	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
VIC-2BRI-ST-TE	(4)	No	No	No	No	No	No	No	No	No	No
OSPF Packet Pacing	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
OS_IFSS	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
PPP over Frame Relay	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Parse Bookmarks	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Policy Routing Infrastructure	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
RIP Enhancements	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Response time Reporter (RTR) Enhancements	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
SNMP Version 3	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Dynamic Multiple Encapsulation for Dial-in over ISDN	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Time-based Access List	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Voice over Frame Relay Enhancements	(4)	No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
Web Cache Communications Protocol V2 (WCCPv2)	(4)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
X.25 Load Balancing	(4)	No	No	No	No	No	No	No	No	No	No
New Features in 12.0(3)T
802.1Q and ISL VLAN	(3)	No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
Cisco Process MIB	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
DLSw+ Load Balancing Enhancements	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
DLSw+ Peer Group Cluster	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
DLSw+ RSVP	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Fast Ethernet (10baseT/100baseT Mbps) Network Ports	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Flow WRED	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
NetFlow Policy Routing	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Response Time Reporter Enhancements	(3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
IBM Support
Bridging Code Rework		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
RIF Passthru in DLSw+		No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
IP Routing
Data Compression Advanced Interface Module (AIM)	(1)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
IP Precedence for GRE Tunnels (GRE VPN)		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Protocol-Independent Multicast (PIM) Version 2		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Management
SNMP Inform Request		No	No	No	No	No	No	No	No	No	No
VPDN MIB and Syslog Facility		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Quality of Service
CLI String Search	(1)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Scalability
Airline Product Set (ALPS)		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Cisco IOS File System		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Entity MIB		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Expression MIB		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
OSPF Point to Multipoint		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Per Port Debugging (Conditionally Triggered Debugging)		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
SNMP Manager		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Security
Additional Vendor-Proprietary RADIUS Attributes		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Authenticating ACLs		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Automated Double Authentication		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Certificate Authority Interoperability		No	No	Yes	Yes	Yes	Yes	Yes	No	No	No
Internet Key Exchange Security Protocol		No	No	Yes	Yes	No	Yes	Yes	No	No	No
IOS Firewall Feature Set	(1)	No	No	No	No	Yes	Yes	Yes	No	No	Yes
3DES Network Security	(2)	No	No	Yes	Yes	No	No	Yes	No	No	No
IPSec Network Security		No	No	Yes	Yes	No	No	Yes	No	No	No
MS-CHAP Support		No	No	No	No	No	No	No	No	No	No
Named Method Lists for AAA Authentication & Accounting		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Subblock Phase 1		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Switching
Enhanced ATM VC Configuration and Management		No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
Multiple ISDN Switch Types		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Voice/Multimedia
Voice over IP		No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
WAN Optimization
ATM PVC Management		No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
DRP Server Agent		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
WAN Services
Always On/ Dynamic ISDN (AO/DI)		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Dialer Watch		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Interface Name Modularity		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Microsoft Point-to-Point Compression (MPPC)		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Mobile IP	(1)	No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
MS Callback		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
National ISDN Switch Types		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
New and Changed Show Commands for the Cisco 2600 series Routers		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Stackable Home Gateway		No	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes
Time-based Access List	(1)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes

New and Changed Information

The following sections list the new features supported by the Cisco 2600 series for Cisco IOS Release 12.0(5)XK1.

New Features in Cisco IOS Release 12.0(5)XK1

The following software features are available for the Cisco 2600 series in Cisco IOS Release 12.0(5)XK1.

Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 Series Routers

Digital T1 packet voice trunk network modules for Cisco 2600 series routers allow enterprises or service providers, using the equipped routers as customer premises equipment, to deploy digital voice and fax relay. These modules receive constant bit-rate telephony information over T1 interfaces and can convert that information to a compressed format, so that it can be transmitted as voice over IP.

The following high-density T1 network modules are available:

• 1-port 24-Channel T1 High-Density Voice Network Module (NM-HDV-1T1-24)

• 1-port Enhanced 24-Channel T1 High-Density Voice Network Module (NM-HDV-1T1-24E)

• 2-Port 48-Channel High-Density Voice Network Module (NM-HDV-2T1-48)

T1 digital voice over IP includes the following functionality:

• T1 Channel Associated Signaling (CAS) for the following line-signaling types:

  • rEceive and transMit or Ear and Mouth (E&M) immediate start

  • E&M wink start

  • E&M delay start (also called "dial repeating")

  • Foreign Exchange Station (FXS) and Foreign Exchange Office (FXO) loop start

  • FXS and FXO ground start

• Dynamic bandwidth allocation using voice activity detection (VAD)

• Drop-and-Insert capability, allowing the interchange of time-division multiplexing (TDM) slots between the ports on a two-port T1 multiflex trunk voice/WAN interface card installed in a digital T1 packet voice trunk network module

• Support for a wide range of International Telecommunication Union (ITU-T) G-series compression specifications, including:

  • G.711 A Law at 64,000 bps

  • G.711 u Law at 64,000 bps

  • G.723.1 Annex A at 5,300 bps

  • G.723.1 Annex A at 6,300 bps

  • G.723.1 at 5,300 bps

  • G.723.1 at 6,300 bps

  • G.726 at 16,000 bps

  • G.726 at 24,000 bps

  • G.726 at 32,000 bps

  • G.728 at 16,000 bps

  • G.729 at 8,000 bps

  • G.729 Annex A at 8,000 bps

  • G.729 Annex B at 8,000 bps

  • G.729 Annex B with Annex A at 8,000 bps

• Depending on codec complexity, either 30 or 60 channels of compressed voice

• High-quality voice endpoint-standard features, such as high-quality echo cancellation, silence suppression, comfort noise generation, and DTMF relay

• Group 3 fax relay

This feature is supported on the following platforms:

• Cisco 2610

• Cisco 2611

• Cisco 2612

• Cisco 2613

• Cisco 2620

• Cisco 2621

Multiport T1/E1ATM Network Modules with Inverse Multiplexing over ATM on Cisco 2600 Series Routers

Digital T1 packet voice trunk network modules allow Cisco 2600 series routers to provide T1 connectivity to PBXs or to a central office (CO). With digital T1 connectivity, Cisco 2600 series routers can provide greater voice density for enterprise and service provider VoIP networks than they could before. A digital T1 packet voice trunk network module is a complete solution, made up of a network module with installed packet voice data modules (PVDMs), and one T1 multiflex trunk voice/WAN interface card with either one or two T1 ports. The T1/E1 multiflex trunk interface cards are dual-mode T1 or E1 interfaces in a VWIC (Voice/WAN Interface Card) form for voice, data, and integrated voice/data applications. The following T1/E1 multiflex trunk interface cards are available:

• 1-port T1 multiflex trunk interface (VWIC-1MFT-T1)

• 1-port E1 multiflex trunk interface (VWIC-1MFT-E1)

• 2-port T1 multiflex trunk interface (VWIC-2MFT-T1)

• 2-port E1 multiflex trunk interface (VWIC-2MFT-E1)

• 2-port T1 multiflex trunk interface with Drop and Insert (VWIC-2MFT-T1-DI)

• 2-port E1 multiflex trunk interface with Drop and Insert (VWIC-2MFT-E1-DI)

The T1/E1 VWICs support the following T1/E1 functionality:

• Single- or dual-port T1/E1 functionality

• Structured or unstructured T1/E1 functionality

• Drop and Insert (also called TDM Cross-Connect) between the T1/E1 ports on dual-port cards, used to hairpin bearer channels to a media gateway device and allowing the interchange of time-division multiplexing (TDM) slots between the ports on a two-port card

This feature is supported on the following platforms:

• Cisco 2610

• Cisco 2611

• Cisco 2612

• Cisco 2613

• Cisco 2620

• Cisco 2621

Important Notes

This section contains important information about use of your Cisco IOS Release 12.0(5)XK1 software.

Cisco IOS release 12.0(5)XK1 is supported on all Cisco 2600 series routers and incorporates a number of bug fixes and enhancements. These include improvements to the echo canceller located within the DSP firmware. These improvements result in better performance during off-net calls and within noisy environments.

Refer to the Caveats section for details on individual bug fixes found within this release.

Deprecated MIBs

Older Cisco Management Information Bases (MIBs) will be replaced in a future release. OLD-CISCO-* MIBS are currently migrated into more scalable MIBs, without affecting existing Cisco IOS products or NMS applications. Application developers should update from deprecated MIBs to the replacement MIBs as shown in the following table.

Deprecated MIB	Replacement
OLD-CISCO-APPLETALK-MIB	RFC1243-MIB
OLD-CISCO-CHASSIS-MIB	ENTITY-MIB
OLD-CISCO-CPUK-MIB	In Development
OLD-CISCO-DECNET-MIB
OLD-CISCO-ENV-MIB	CISCO-ENVMON-MIB
OLD-CISCO-FLASH-MIB	CISCO-FLASH-MIB
OLD-CISCO-INTERFACES-MIB	IF-MIB CISCO-QUEUE-MIB
OLD-CISCO-IP-MIB
OLD-CISCO-MEMORY-MIB	CISCO-MEMORY-POOL-MIB
OLD-CISCO-NOVELL-MIB	NOVELL-IPX-MIB
OLD-CISCO-SYS-MIB	(Compilation of other OLD* MIBS)
OLD-CISCO-SYSTEM-MIB	CISCO-CONFIG-COPY-MIB
OLD-CISCO-TCP-MIB	CISCO-TCP-MIB
OLD-CISCO-TS-MIB
OLD-CISCO-VINES-MIB	CISCO-VINES-MIB
OLD-CISCO-XNS-MIB

Caveats

Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 are less serious.

This section only contains open and resolved caveats for the current Cisco IOS maintenance release.

All caveats in Release 12.0 and Release 12.0 T are also in Release 12.0(5)XK1.

For information on caveats in Cisco IOS Release 12.0, see Caveats for Cisco IOS Release 12.0  that describes caveats affecting all maintenance releases.

For information on other caveats that also apply to this release, see Caveats for Cisco IOS Release 12.0 T which lists severity 1 and 2 caveats, and is located on CCO and the Documentation CD-ROM

Caveats for Release12.0(5)XK1

This section describes possibly unexpected behavior by Release 12.0(5)XK1. Unless otherwise noted, these caveats apply to all 12.0 releases up to and including 12.0(5)XK1.

Basic System Services

• CSCdj54850

Brings IOS up to RFC 2217 spec. Adds in extra flow control for faxing through IOS. Corrects [now ignores] software flow control issue.

• CSCdk75315

Error messages are generated by RSP routers with VIP cards in some cases. The error messages are generally benign, indicating temporarily out of memory situations, which are then recovered from.

• CSCdm11467

SegV Exception in peer_list_sum, NTP related

When utilizing ntp private mode and control type messages for remote query, it is possible to see a router crash or traceback messages.

• CSCdm44772

If sh run or wr t are issued at exactly the same time from two different VTY, one session may finish before the other and trash a variable that still need to be used by the 1st session which causes a router crash.

Workaround: Don't do sh run at the same time from 2 VTY's.

• CSCdm78286

If you have a Vip2-50 with a ESA module for hardware encryption, you might be seeing this problem. Execute show version and look for 12.0.5, if rsp-dsv56i-mz.120-5 show interface stat and look for...

Router # sh int stat FastEthernet4/0/0 Switching path Pkts In Chars In Pkts Out Chars Out Processor 169 17028 5866912 2018892867 Route cache 5866778 2019797528 0 0 ^^^notice no route cache^^ Distributed cache 0 0 0 0 Total 5866948 2019815576 5866912 2018892867
Serial5/0/0 Switching path Pkts In Chars In Pkts Out Chars Out Processor 5964672 1993916338 530 37168 Route cache 0 0 5958298 1967889708 ^^^notice no route cache^^ Distributed cache 0 0 0 0 Total 5964672 1993916338 5958828 1967926876
 

• CSCdm80864

The use of the command backup interface bri 0 breaks the tdm-group command under the T1/E1 controllers in Cisco IOS 12.0(5)XK. Removing the command, saving the config to nvram, and reloading doesn't resolve the problem. The user must either:

write erase and reload

-or-

boot the router ignoring vnram

Reconfigure the router without the faulty command. The work-around is to disable ISDN backup.

IBM Connectivity

• CSCdm55118

A Cisco router using Advanced Peer-to-Peer Networking (APPN) may consume excessive CPU while issuing messages during a Locate storm. In particular, message: XXXTPD02_LOGMSG_01 can be issued repetitively.

• CSCdm71190

APPN Network Node router fails to allocate the conwinner session of its dual CP-CP session with an adjacent End Node. The conloser session will be setup correctly, but the conwinner sessions fails with sense 80140003 as indicated in the debug appn ss. The problem results after changing an adjacent Network Node to an End Node. The workaround is to cycle the link for this End Node.

• CSCdp00456

Router may crash when creating a circuit history for a DLSw lite circuit.

Workaround is to disable circuit history logging by configuring no dlsw history-log.

Interfaces and Bridging

• CSCdj54192

If an interface on a HSSI 1 port (PA-H or H1T+) card goes down/down and you see the following error message, you may be experiencing this problem:

%MUSELIX-1-STOPFAIL: XXXX: Stop Failed at disable port (XXXX = the interface affected) %MUSELIX-1-STARTFAIL: XXXX: Start Failed at enable port MUESLIX-1-FAILURE_CAUSE: SerialX/X:
 

This problem is caused by several factors.

Once it falls into this state, execute the following (undocumented) test commands -- (<CR> is a carriage return):

term len 0<CR> sh cont h 1/0<CR> test tpu b<CR> 1/0<CR> g<CR> x<CR> y<CR> r<CR> s<CR> 3<CR> q<CR> test tpu b<CR> 1/1<CR> g<CR> x<CR> y<CR> r<CR> s<CR> 3<CR> q<CR> test len 24<CR>

An example of this process can be obtained by using Bug Navigator II.

Resolved Caveats for Release12.0(5)XK1

All caveats listed in this section are resolved in Release 12.0(5)XK1. This section only describes severity 1 and severity 2 caveats.

• CSCdm66420

Crashed happened on routing_svc, switching_svc, and bridging_svc HAWK testing after the configuration is done. It is in version 12.0(5.1)PI6.

The same problem is also seen on 12.0(19990715:065145) [BLD-v120_5_xk_throttle.990714 109] where is stack trace is the same.

• CSCdm67215

Regression of BVM (qsig) failed to pass the SETUP to the PBX (i.e., making an outgoing call). Apparently, some code changes for other boxes introduced the problem. A new field called bchan_reassigned is added to the isdn_bri structure. This structure is used to make calls to routines such as process_bri_call. For the MC3810, we have an api (ccsapi.c) to translate ccs api messages to isdn host messages, the person(s) who add this field forgot to initialize the field for this api, and thus contains garbage.

This is causing the "UKNOWN BCHANNEL" problem shown by the regression.

• CSCdm70244

Clocking configuration information may be over written if the hw work-around software is running while a clocking config change is made.

• CSCdm70913

Cannot configure more than one channel-group on E1.

• CSCdm72687

In FRF8, the IWF is setting the DE bit of the FR frame only if the last cell of a AAL5 pack has the CLP bit set. According to the FRF.8 spec, the DE bit should be set if any of the cells of a fragmented AAL5 packet has the CLP bit set.

• CSCdm72696

FRF.8 ATM PVCs cannot be removed if the corresponding FR VCs are not configured on the IWF.

Related Documentation

The following sections describe the documentation available for the Cisco 2600 series 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 available online on CCO and the Documentation CD-ROM.

Use these release notes with these documents:

• Release-Specific Documents

• Platform-Specific Documents

• Feature Modules

• Cisco IOS Software Documentation Set

Release-Specific Documents

The following documents are specific to Cisco IOS Releases 12.0 T and 12.0, on which Release 12.0(5)XK1 is based and located on CCO and the Documentation CD-ROM:

• Cross-Platform Release Notes for Cisco IOS Release 12.0

On CCO at:

Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes: Cross-Platform Release Notes

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes: Cross-Platform Release Notes

• Product bulletins, field notices, and other release-specific documents on CCO:

Service & Support: Technical Documents

• Caveat documents

As a supplement to the caveats listed in the "Caveats" section in these release notes, see Caveats for Cisco IOS Release 12.0 T which contains caveats applicable to all platforms for all maintenance releases of Release 12.0 T. Caveats for Release 12.0(5)T apply to Release 12.0(5)XK1.

On CCO:

Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Caveats: Caveats for Cisco IOS Release 12.0 T

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS 12.0: Caveats: Caveats for Cisco IOS Release 12.0 T

Platform-Specific Documents

These documents are available for the Cisco 2600 on CCO and on the Documentation CD-ROM.

• Quick Start Guide Cisco 2600 Series Cabling and Setup

• Cisco 2600 Series Hardware Installation Guide

• Network Modules Hardware Installation Guide

• Update to Network Module Hardware and Software Guides

• Cisco WAN Interface Cards Hardware Installation Guide

• Update to WAN Interface Cards Hardware Installation Guide

• Software Configuration Guide For Cisco 3600 and Cisco 2600 Series Routers

• New and Changed Show Commands for the Cisco 2600 Series Routers

• Cisco 2600 Series Configuration Notes

• Analog Modem Firmware

• Analog modem firmware release notes and AT command set

• Cisco 2600 Series Cabling Specifications

• Cisco Modular Access Router Cable Specifications

On CCO:

Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers

On the Documentation CD-ROM:

Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers

Feature Modules

Feature modules describe new features supported by Cisco IOS Release 12.0 T and 12.0(5)XK1, and 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 12.0: New Feature Documentation

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: New Feature Documentation

Cisco IOS Software Documentation Set

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

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, Cisco IOS software functionality, and comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Each configuration guide can be used in conjunction with its corresponding command reference.

On CCO:

Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References

Cisco IOS Release 12.0 Documentation Set

Table 6 describes the contents of the Cisco IOS Release 12.0 software documentation set. The document set is available in electronic form and also in printed form upon request.

On CCO:

Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References.

Table 6: Cisco IOS Software Release 12.0 Documentation Set

Books	Chapter Topics
Configuration Fundamentals Configuration Guide Configuration Fundamentals Command Reference	Configuration Fundamentals Overview Cisco IOS User Interfaces File Management System Management
Bridging and IBM Networking Configuration Guide Bridging and IBM Networking Command Reference	Transparent Bridging Source-Route Bridging Token Ring Inter-Switch Link 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 Cisco Database Connection NCIA Client/Server Topologies Cisco Mainframe Channel Connection Airline Product Set
Dial Solutions Configuration Guide Dial Solutions Command Reference	X.25 over ISDN Appletalk Remote Access Asynchronous Callback, DDR, PPP, SLIP Bandwidth Allocation Control Protocol ISDN Basic Rate Service ISDN Caller ID Callback PPP Callback for DDR Channelized E1 & T1 Dial Backup for Dialer Profiles Dial Backup Using Dialer Watch Dial Backup for Serial Lines Peer-to-Peer DDR with Dialer Profiles DialOut Dial-In Terminal Services Dial-on-Demand Routing (DDR) Dial Backup Dial-Out Modem Pooling Large-Scale Dial Solutions Cost-Control Solutions Virtual Private Dialup Networks Dial Business Solutions and Examples
Cisco IOS Interface Configuration Guide Cisco IOS Interface Command Reference	Interface Configuration Overview LAN Interfaces Logical Interfaces Serial Interfaces
Network Protocols Configuration Guide, Part 1 Network Protocols Command Reference, Part 1	IP Overview IP Addressing and 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	Network Protocols Overview Apollo Domain Banyan VINES DECnet ISO CLNS XNS
Security Configuration Guide Security Command Reference	AAA Security Services Security Server Protocols Traffic Filtering and Firewalls IP Security and Encryption Passwords and Privileges Neighbor Router Authentication IP Security Options
Cisco IOS Switching Services Configuration Guide Cisco IOS Switching Services Command Reference	Switching Services Switching Paths for IP Networks Virtual LAN (VLAN) Switching and Routing
Wide-Area Networking Configuration Guide Wide-Area Networking Command Reference	Wide-Area Network Overview ATM Frame Relay SMDS X.25 and LAPB
Voice, Video, and Home Applications Configuration Guide Voice, Video, and Home Applications Command Reference	Voice over IP Voice over Frame Relay Voice over ATM Voice over HDLC Frame Relay-ATM Internetworking Synchronized Clocks Video Support Universal Broadband Features
Quality of Service Solutions Configuration Guide Quality of Service Solutions Command Reference	Policy-Based Routing QoS Policy Propagation via BGP Committed Access Rate Weighted Fair Queueing Custom Queueing Priority Queueing Weighted Random Early Detection Scheduling Signaling RSVP Packet Drop Frame Relay Traffic Shaping Link Fragmentation RTP Header Compression
Cisco IOS Software Command Summary Dial Solutions Quick Configuration Guide System Error Messages Debug Command Reference

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 that shipped with your product.

For service and support for a product purchased directly from Cisco, use CCO.

Software Configuration Tips on Cisco's 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/kobayashi/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:

• Access Dial Cookbook---Contains common configurations or recipes for configuring various access routes and dial technologies.

• Field Notices---Notifies you of any critical issues regarding Cisco products and includes problem descriptions, safety or security issues, and hardware defects.

• Frequently Asked Questions---Describes the most frequently asked technical questions about Cisco hardware and software.

• Hardware---Provides technical tips related to specific hardware platforms.

• Hot Tips---Describes 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 reach Fax-on-demand and receive documents at your fax machine from the United States, call 888-50-CISCO (888-502-4726). From other areas, call 650-596-4408.

• Internetworking Features---Lists tips on using Cisco IOS software features and services.

• Sample Configurations---Provides actual configuration examples that are complete with topology and annotations.

• Software Products---Contains Cisco IOS Software Bulletins, Cisco TCP/IP Suite 100, General Cisco IOS, Internet/Intranet Applications and Software, Network Management, Network Protection Software Tips, and WAN Switching Products and Software.

• Special Collections---Lists other helpful documents, including Case Studies, References & Request for Comments (RFCs), and Security Advisories.

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 Cisco's 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's Frequently Asked Questions (FAQ), contact cco - help@cisco.com.  For additional information, contact cco - team@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 and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.

Posted: Wed Mar 1 19:12:03 PST 2000
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