Cisco Logo Cisco Technical Assistance Center (TAC)
Newsletter
TAC Certified
Vol. 2, No. 6, June, 2000 Unmatched Online Technical Support www.cisco.com/tac
Cisco Newsletter image In This Issue:
What's Hot
IP Routing Protocols
LAN
Access
High-End Routers
WAN Switches
ATM
IBM
Security
WAN
Network Management Systems
Voice and Telephony
Web Scaling
Optical Transport
Intelligent Contact Management
Network Services
Cisco IOS® Software
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What's Hot
New Tool:
The Search Is Over! Locate Critical Technical Support Content Using the New Cisco Search Tool -- It's Easy, Fast, and Accurate
 

You can now search for technical support information faster and more accurately than ever before by using the new Cisco Search tool. This new search tool allows you to quickly find technical support documents located throughout Cisco.com and the TAC Web site. This new search tool requires that you type in the exact word(s) and/or phrase (not case-sensitive) that you are looking for and ranks the results based on a popularity index.

Try out the New Cisco Search Tool now and find your technical support solutions at:

http://www.cisco.com/public/pubsearch.html
(available to non-registered users) or

http://www.cisco.com/common/search.shtml
(available to registered users).

New Tool:
TAC Compatibility Advisor (Catalyst 5000) Tool Helps You Easily Upgrade Your Catalyst OS Using the Most Up-to-date Software and Feature Information
 

You can now use the Cisco TAC Compatibility Advisor (Catalyst 5000) tool to access system-level compatibility information quickly and easily for Cisco Catalyst 5000 switches. The Compatibility Advisor enables you to:

  • View the minimum and recommended Catalyst OS supervisor versions related to your hardware configuration by determining if your hardware is valid with your current or target version of Catalyst OS software
  • View applicable software and memory upgrade paths, as well as cautionary flags
  • See all the new features that were released in a specific Catalyst OS version

To use the Compatibility Advisor tool, visit:
http://www.cisco.com/cgi-bin/Support/Advisor/advisor.cgi.

New Technical Resource -- TAC Solutions Pages:
AVVID Troubleshooting Content Now Available in One Convenient Location
 

Use the TAC Architecture for Voice, Video and Integrated Data (AVVID) Solutions Pages to find technical support information on the products and technologies that you need to implement and troubleshoot your converged voice, video, and data network. The new AVVID Solutions Pages provide you with the following valuable technical resources:

  • Links to the VoIP, VoFR and VoATM technologies pages, including sample configurations and network design information
  • Overviews of Cisco AVVID and packet-voice networks
  • Troubleshooting documentation and technical tips to help you maintain your VoIP, VoATM or VoFR network
  • Links to technical information on AVVID products and applications, such as Cisco IP phones, Cisco CallManager, and Cisco Media Convergence Servers
Try out the new AVVID Solutions Pages by visiting:
http://www.cisco.com/tac/solutions/avvid.


New Content -- TAC Technology Pages:
ATM Technical Support Data for CES and General ATM
 

The Cisco TAC Web site now offers technical support for ATM circuit emulation systems (CES) and general ATM information in the TAC ATM Technology Pages. You will find numerous sample configurations, technical tips, FAQs, and many other resources designed and written by Cisco TAC engineers to help you:

  • Design and verify your ATM internetwork
  • Understand ATM addresses
  • Interpret ATM error messages
  • Configure a PVC
  • Troubleshoot PVC failures
  • Understand loopback modes
  • Establish a connection between a router and a Catalyst® switch
To begin using the ATM Technology Pages, visit:
http://www.cisco.com/tac/technologies/atm.


New Content -- TAC Technology Pages:
VoATM and VoFR Technical Support Information to Help Design, Deploy, Troubleshoot, and Support Voice and Telephony Networks
 

The Cisco TAC Voice and Telephony Technology Pages now provide a one-shop-stop for Voice-Over-ATM (VoATM) and Voice-Over-Frame-Relay (VoFR) technical information to help support your voice networks, in addition to previously available VoIP content. Find valuable voice and telephony information designed to expedite and simplify technical support for:

  • Voice packet networking
  • Voice network sample configurations
  • Voice network design and implementation guide
  • Voice network signaling and control documentation
  • And many more...
To begin using the TAC's VoFR, VoATM, and VoIP technical content, visit the Voice and Telephony Technology Pages at:
http://www.cisco.com/tac/technologies/voice.


New Content -- TAC Technology Pages:
IBM CIP:CSNA Troubleshooting Information
 

The TAC Technology Pages bring you the all new CIP:CSNA troubleshooting content and resources. Within this newly posted technical support information, you will also be able to search for answers to some of the most frequently occurring CIP:CSNA problems, such as:

  • Find the product specifications for the Cisco CIP and the second-generation channel interface processor: Cisco CIP2.
  • Learn how to migrate from an IBM 3172 to CIP
  • Configure synchronous data logic link control (SDLLC) via DLSw+
  • Configure SDLLC via remote source-route bridging
  • Configure CSNA/advanced peer-to-peer networking (APPN) connectivity
Other hot content available within the IBM Technology Pages include data-link switching (DLSw) troubleshooting flowcharts and content to help you configure, verify, troubleshoot, and learn more about IBM DLSw networking technologies and peer-based networking.

Use this CIP:CSNA and DLSw content today by visiting the IBM Technology Pages at:
http://www.cisco.com/tac/technologies/ibm.


New Content -- TAC Technology Pages:
Multicast Technical Support Information
 

The TAC IP-Routing Protocol Technology Pages are now enhanced to include technical support information in the area of multicast networking. Find the latest multicast support information, including:

  • Multicast overviews, features, and deployment
  • Multicast sample configurations for multicast over ISDN, multicast BGP configuration, IP multicast multi-layer switching, and more...
  • Multicast technical tips
  • Multicast troubleshooting guides
Other technologies supported under the IP-Routing Protocol Technology Pages include: OSPF, BGP, RIP, NAT, IGRP, and EIGRP. Check out the enhanced IP-Routing Protocol Technology Pages at:
http://www.cisco.com/tac/technologies/rp.

Useful Tip: The TAC Output Interpreter tool analyzes a wide range of router show commands related to IP-routing protocol technologies. This tool will decode the output by displaying relevant errors or warnings. Test drive the Output Interpreter tool by visiting:
http://www.cisco.com/support/OutputInterpreter/.


Back to top
Spotlight:
Save Time By Opening TAC Cases Online Using the TAC Case Open Tool
 

Cisco recommends that all customers use the TAC Case Open tool to create cases for all non-urgent, P3+ and P4++ technical issues. By using the TAC Case Open tool, you will instantly receive a TAC case number. Once your case is opened online, a Cisco TAC engineer will contact you to resolve your technical issue. You don't have to wait for a case number to be e-mailed to you, or waste time in the TAC phone queue.

Other helpful TAC case management tools include the TAC Case Update tool and the TAC Case Query tool. These tools allow you to easily modify and check your case without the difficulty of calling the TAC by telephone.

To use the Case Open tool, visit:
http://www.cisco.com/tac/caseopen
(available to registered users).

To use the Case Update and Case Query tools, visit:
http://www.cisco.com/cgi-bin/ibld/all.pl?i=support&c=6
(available to registered users).

+P3: Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

++P4: You need information or assistance on Cisco product capabilities, installation advice, or basic product configuration data.

Training:
New Cisco Interactive Mentor "Voice Internetworking: Basic VoIP" Product Provides Hands-on Exercises for Supporting VoIP Networks
 

The new CIM "Voice Internetworking: Basic VoIP" product helps you refresh and reinforce VoIP knowledge by providing:

  • Lab simulated exercises for VoIP network software implementations
  • Lab simulated exercises for troubleshooting and configuring analog and digital voice calls over IP networks
  • An overview of telephony, as well as fundamentals of routing voice packets over a data network
This new self-paced CIM VoIP product is a scalable, inexpensive alternative to attending leader-led courses, and will help you learn essential networking concepts on VoIP technology in a non-linear, hands-on approach.

To purchase CIM "Voice Internetworking: Basic VoIP," click on "CIM Purchase Options" at:
http://www.cisco.com/go/cim.


Training:
TAC Web Tools Showcase: Learn How the Cisco TAC Web Site Can Help You Quickly Resolve Networking Challenges
 

The Cisco TAC Web Tools Showcase is currently doing a tour across the United States. Upcoming locations for June and July include: San Diego, Orange County, Seattle, Portland, Denver, and Minneapolis.

The Cisco TAC Web Tools Showcase provides training on how to use the new features of the Cisco TAC Web site to save time, save money, and improve networking skills. By attending the Cisco TAC Web Tools Showcase, you can learn how to use the TAC Web site to find critical information, troubleshoot issues, increase your expertise, and support your networks. Response to the Cisco TAC Web Tools Showcase has been overwhelmingly positive. Ninety-eight percent of Showcase attendees said that the event was an excellent use of their time and that the information they received would help them to do their jobs more effectively.

For more information as well as specific dates and locations, visit:
http://www.cisco.com/tac/showcase.

Training:
Talk Live with Cisco Virtual Private Network Experts Online
 

Talk LIVE with Cisco VPN technical experts at the Cisco Virtual Private Networks Online TechTalk, June 14, 2000, 10-11 a.m. PDT. Learn about new developments in site-to-site VPNs from Product Marketing Manager, Kevin Flynn. He will be online to answer all your VPN questions and provide real-world examples of remote access and site-to-site VPNs.

Register for this LIVE broadcast event at:
http://www.ciscowebseminars.com/ttvpn02-V463.

Conference:
Come Meet the Industry Experts and Learn More about the Latest Internetworking Technologies at Networkers 2000 - the 11th Annual Cisco Systems Users Conference
 

Networkers 2000 brings you face to face with top Cisco networking professionals to learn about the hottest Cisco products and technologies, review industry trends and receive vital information on networking. This year's program includes presentations on all the newest IP-based technologies and business strategies. Also new this year are Power Sessions, which offer in-depth, full-day tutorials providing coverage of today's most challenging networking issues. The US Networkers 2000 Conferences are being held in Las Vegas, Nevada, (June 26 to 29) and Orlando, Florida (July 12 to 15).

For session topics and registration information, please visit:
http://www.cisco.com/networkers/g1.

For information on upcoming Networkers events around the world, visit:
http://www.cisco.com/networkers.

Back to top
IP Routing Protocols Products and Technologies
 

Tech Tip:
IP Multicast Troubleshooting Guide

This Tech Note describes common problems and solutions of IP multicast in the case studies linked at the bottom of this page.

http://www.cisco.com/warp/customer/105/mcastguide0.html
(available to registered users)

http://www.cisco.com/warp/public/105/mcastguide0.html
(available to non-registered users)

 

Tech Tip:
How Much Memory Does Each BGP Route Consume?

Each Border Gateway Protocol (BGP) entry takes about 240 bytes of memory in the BGP table and another 240 bytes in the IP routing table. Each BGP path takes about 110 bytes.

http://www.cisco.com/warp/customer/459/
(available to registered users)

http://www.cisco.com/warp/public/459/
(available to non-registered users)

 

Sample Configurations:
Sample Configuration for BGP with Two Different Service Providers (Multihoming)

When running Border Gateway Protocol (BGP) with more than one service provider, you run the risk of having your autonomous system (AS) becoming a transit AS. This results in Internet traffic passing through your AS and potentially consuming all the bandwidth and resources on your router's CPU.

http://www.cisco.com/warp/customer/459/27.html
(available to registered users)

http://www.cisco.com/warp/public/459/27.html
(available to non-registered users)

 

Sample Configurations:
Sample Configuration for iBGP and eBGP With or Without a Loopback Address

You can configure Border Gateway Protocol (BGP) either within an autonomous system or between different autonomous systems. When run within an autonomous system, it's called internal BGP (iBGP). When run between different autonomous systems, it's called external BGP (eBGP). Following are the sample configurations for iBGP and eBGP, both with and without a loopback address.

http://www.cisco.com/warp/customer/459/23.html
(available to registered users)

http://www.cisco.com/warp/public/459/23.html
(available to non-registered users)

 

Sample Configurations:
Sample Configuration for Authentication in OSPF

This document shows sample configurations for OSPF authentication. OSPF supports both plain text and MD5 authentication. When you configure authentication, you must configure an entire area with same type of authentication. Starting in Cisco IOS( 12.0.8, authentication is supported on a per-interface basis.

http://www.cisco.com/warp/customer/104/25.shtml
(available to registered users)

http://www.cisco.com/warp/public/104/25.shtml
(available to non-registered users)

 

Tech Tip:
Using Regular Expressions in BGP

You can use regular expressions in access lists with Border Gateway Protocol (BGP). This document describes scenarios for using regular expressions.

http://www.cisco.com/warp/customer/459/26.html
(available to registered users)

http://www.cisco.com/warp/public/459/26.html
(available to non-registered users)

 

Tech Tip:
BGP Path Selection Criteria

Border Gateway Protocol (BGP) bases its decision-making process on attribute values. When faced with multiple routes to the same destination, BGP chooses the best route toward the destination. This document summarizes how BGP chooses the best route.

http://www.cisco.com/warp/customer/459/25.shtml
(available to registered users)

http://www.cisco.com/warp/public/459/25.shtml
(available to non-registered users)

 

Tech Tip:
Why Do BGP Neighbors Toggle between Idle, Connect, and Active States?

When establishing a Border Gateway Protocol (BGP) session, BGP goes through several state changes before reaching the final state, established. When a BGP neighbor toggles between the idle and active states during the normal progression of establishing a BGP session, there's a problem. Following are several reasons for this problem; the most common ones are discussed in this document.

http://www.cisco.com/warp/customer/459/24.html
(available to registered users)

http://www.cisco.com/warp/public/459/24.html
(available to non-registered users)

 

Tech Tip:
What Does the "Adv router not-reachable" Error Message Mean?

When you see the following error message on the top of a link-state advertisement (LSA) it means that the router advertising the LSA isn't reachable through OSPF. There are several reasons for this message, most of which deal with misconfiguration or a broken topology. This document explains some of the more common reasons for this error message.

http://www.cisco.com/warp/customer/104/26.html
(available to registered users)

http://www.cisco.com/warp/public/104/26.html
(available to non-registered users)

  GENERAL
 

White Paper:
Route Selection in Cisco Routers

One of the intriguing aspects of Cisco routers, especially for those new to routing, is how the router chooses which route is the best among those presented by routing protocols, manual configuration, and various other means. While route selection is much simpler than you might imagine, understanding it completely requires some knowledge about the way Cisco routers work.

http://www.cisco.com/warp/customer/105/21.html
(available to registered users)

http://www.cisco.com/warp/public/105/21.html
(available to non-registered users)

 

White Paper:
How to Choose the Best Router Switching Path for Your Network

There are a plethora of switching paths available to various Cisco routers and Cisco IOS releases. Which is the best one for your network, and how do they all work? This white paper is an attempt to explain each of the following switching paths so you can make the best decision about which switching path fits your network.

http://www.cisco.com/warp/customer/105/20.html
(available to registered users)

http://www.cisco.com/warp/public/105/20.html
(available to non-registered users)

Back to top
LAN Products and Technologies
 

Security Advisory:
Cisco Catalyst Enable Password Bypass Vulnerability

Cisco Catalyst software permits unauthorized access to the enable mode in the 5.4(1) release. Once initial access is granted, access can be obtained for the higher level "enable" mode without a password. This problem is resolved in version 5.4(2). Customers with vulnerable releases are urged to upgrade as soon as possible.

http://www.cisco.com/warp/customer/707/catos-enable-bypass-pub.shtml
(available to registered users)

http://www.cisco.com/warp/public/707/catos-enable-bypass-pub.shtml
(available to non-registered users)

 

Field Notice:
Software Download Fails on Catalyst 4000/5000/6000 Devices

This document details a workaround/solution for image distribution and image import failure on Catalyst 4000, Catalyst 5000, Catalyst 6000 devices running Supervisor 5.4(1) if the Remote Copy Protocol (RCP) option is checked in the 'Edit Preferences' page.

http://www.cisco.com/warp/customer/770/fn12090.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12090.html
(available to non-registered users)

 

Tech Tip:
Troubleshooting IP MultiLayer Switching

This document outlines basic troubleshooting of multiLayer switching (MLS) for IP.

http://www.cisco.com/warp/customer/473/13.html
(available to registered users)

http://www.cisco.com/warp/public/473/13.html
(available to non-registered users)

 

Tech Tip:
MS Windows Load Balancing Server: Issues with Switching and Routing

This document addresses a problem where Windows Load Balancing Server (WLBS) causes slow traffic through switches and routers.

http://www.cisco.com/warp/customer/473/ms_wlbs.html
(available to registered users)

http://www.cisco.com/warp/public/473/ms_wlbs.html
(available to non-registered users)

  CATALYST 4000, 5000, and 6000
 

Tech Tip:
VLAN Load Balancing Between Trunks Using the Spanning-Tree Protocol Port Priority

Describes VLAN load balancing between trunks and how to configure this feature on Catalyst switches.

http://www.cisco.com/warp/customer/473/15.html
(available to registered users)

http://www.cisco.com/warp/public/473/15.html
(available to non-registered users)

  CATALYST 6000
 

Tech Tip:
How to Recover a Catalyst 6000 from a Corrupted or Missing Boot Image

Explains how to recover a Catalyst 6000 family switch from either a corrupted or missing boot loader image.

http://www.cisco.com/warp/customer/473/14.html
(available to registered users)

http://www.cisco.com/warp/public/473/14.html
(available to non-registered users)

  CATALYST 6509
 

Sample Configurations:
Sample Configuration: HSRP with Interface VLANs

In this configuration, there are two Catalyst 6509 switches, each with two multilayer switch feature cards (MSFCs), for a total of four routers. Our strategy is to have the MSFC-a1 in the diagram below route for odd virtual LANs (VLANs), as the primary router, and MSFC-b1 to route odd VLANs as the backup router. For even VLANs, we want MSFC-b2 to be the primary router and MSFC-a2 to be the backup router.

http://www.cisco.com/warp/customer/619/4.html
(available to registered users)

http://www.cisco.com/warp/public/619/4.html
(available to non-registered users)

 

Tech Tip:
Recovery From Corrupt or Missing Software Image -- Cisco Catalyst 2900 Series XL and Catalyst 3500 Series XL Switches

This document describes how to recover from a corrupt or missing software image on the Cisco Catalyst 2900 XL and 3500 XL. When this problem exists the error message: "Error Loading Flash" will appear when booting up after power loss or after an incorrect software upgrade.

http://www.cisco.com/warp/customer/473/corrupt_or_missing_image.html
(available to registered users)

http://www.cisco.com/warp/public/473/corrupt_or_missing_image.html
(available to non-registered users)

 

Tech Tip:
Understanding Spanning-Tree Protocol's Backbone Fast Feature

Backbone fast is a Cisco proprietary feature that, once enabled on all switches of a bridge network, can save a switch up to 20 seconds when recovering from an indirect link failure.

http://www.cisco.com/warp/customer/473/18.html
(available to registered users)

http://www.cisco.com/warp/public/473/18.html
(available to non-registered users)

 

Tech Tip:
Understanding Spanning-Tree Protocol Topology Changes

This document explains the purpose of this topology change mechanism, and what triggers a topology change event and describes issues related to the topology change mechanism.

http://www.cisco.com/warp/customer/473/17.html
(available to registered users)

http://www.cisco.com/warp/public/473/17.html
(available to non-registered users)

 

Tech Tip:
Troubleshooting Spanning-Tree Protocol and Related Design Considerations

Describes STP troubleshooting techniques as well as tips for safe network design related to bridging.

http://www.cisco.com/warp/customer/473/16.html
(available to registered users)

http://www.cisco.com/warp/public/473/16.html
(available to non-registered users)

 

Tech Tip:
Common Problems in Installing Images Using TFTP or an RCP Server

This document is designed to assist you with problems that may develop while you are installing Cisco IOS software images using a TFTP or Remote Copy Protocol (RCP) Server application.

http://www.cisco.com/warp/customer/63/install_tftp.html
(available to registered users)

http://www.cisco.com/warp/public/63/install_tftp.html
(available to non-registered users)

 

Tech Tip:
How to Install Software Images Using a TFTP or RCP Server Application

This describes how to install Cisco IOS software onto Cisco routers using a Trivial File Transfer Protocol (TFTP) server or RCP server application.

Note: The link to this article has been changed since the newsletter's publication. The following link will take you to a directory where the article can be found.

http://www.cisco.com/warp/customer/63
(available to registered users)

http://www.cisco.com/warp/public/63
(available to non-registered users)

Back to top
Access Products and Technologies
 

Sample Configurations:
Async-PPP Callback Between an Access Server and a PC

This sample configuration illustrates a modem async PPP callback.

http://www.cisco.com/warp/customer/793/access_dial/async_ppp.html
(available to registered users)

http://www.cisco.com/warp/public/793/access_dial/async_ppp.html
(available to non-registered users)

 

Sample Configurations:
EXEC Callback Sample Configuration

This sample configuration illustrates an EXEC callback

http://www.cisco.com/warp/customer/793/access_dial/execcall.html
(available to registered users)

http://www.cisco.com/warp/public/793/access_dial/execcall.html
(available to non-registered users)

 

Sample Configurations:
PPP Callback over ISDN

This sample configuration illustrates an ISDN PPP callback. Callback may be used for consolidation and centralization of phone billing, cost savings on toll calls, and access control.

http://www.cisco.com/warp/customer/793/access_dial/isdn-ppp-callback.html
(available to registered users)

http://www.cisco.com/warp/public/793/access_dial/isdn-ppp-callback.html
(available to non-registered users)

  Cisco 1417
 

FAQ:
1417 FAQ Rev 1.0

This document answers a variety of questions commonly asked about Cisco 1417 routers.

http://www.cisco.com/warp/customer/794/1417_faqs.html
(available to registered users)

http://www.cisco.com/warp/public/794/1417_faqs.html
(available to non-registered users)

  CISCO 3640
 

Tech Tip:
Digital Modem Connectivity Using a Cisco 3640 BRI Interface

This configuration supports remote users with an analog dial-up modem to connect to the network using V.90 protocol (for example, a home user or a traveling employee).

http://www.cisco.com/warp/customer/471/bri_3640.html
(available to registered users)

http://www.cisco.com/warp/public/471/bri_3640.html
(available to non-registered users)

 

Tech Tip:
How to Replace a DECserver with a Cisco Access Server

This document explains the process of replacing a DEC Terminal Server with a Cisco access server. It is assumed that the reader understands VMS print queues and how to create a LAT Terminal Adapter (LTA) device to which the print queues are directed.

http://www.cisco.com/warp/customer/74/DECserver.html
(available to registered users)

http://www.cisco.com/warp/public/74/DECserver.html
(available to non-registered users)

 

Tech Tip:
How to Configure IPSec Clients to Authenticate to and Receive Addresses from a Funk RADIUS Server

This Tech Note explains how to configure IPSec clients to authenticate to, and receive addresses from, a Funk RADIUS server.

http://www.cisco.com/warp/customer/471/configipsec.html
(available to registered users)

http://www.cisco.com/warp/public/471/configipsec.html
(available to non-registered users)

 

Tech Tip:
Configuring Cisco 3000 VPN Concentrator to Accept Connections from Network Associates PGP Client (Version 6.5.1)

This document describes how to configure a Cisco 3000 VPN Concentrator to accept connections from a Network Associates Pretty Good Privacy (PGP) client running version 6.5.1.

http://www.cisco.com/warp/customer/471/PGP_VPN.html
(available to registered users)

http://www.cisco.com/warp/public/471/PGP_VPN.html
(available to non-registered users)

 

Sample Configurations:
PPPoA Session Termination: xDSL to Cisco 6400 UAC

The sample configuration described in this document enables a PC connected to a Cisco 675 asymmetric digital subscriber line (ADSL) router to connect via a Cisco 6100 advanced digital subscriber line access multiplexer (ADSLAM) to a 6400 Universal Access Concentrator (UAC) using Point-to-Point Protocol over ATM (PPPoA). This configuration allows data to be routed to the Internet or other services.

http://www.cisco.com/warp/customer/794/6400dsl_rfc1483.html
(available to registered users)

http://www.cisco.com/warp/public/794/6400dsl_rfc1483.html
(available to non-registered users)

 

Sample Configurations:
RFC1483 Bridging: xDSL to Cisco 6400 UAC

The sample configuration described in this document enables a PC connected to a Cisco 675 ADSL router to connect via a Cisco 6100 ADSLAM to a Cisco 6400 series UAC using RFC1483 (bridging). This configuration allows data to be routed to the Internet or other services.

http://www.cisco.com/warp/customer/794/6400dsl_rfc1483.html
(available to registered users)

http://www.cisco.com/warp/public/794/6400dsl_rfc1483.html
(available to non-registered users)

 

Sample Configurations:
RFC1483 Bridging: xDSL to Cisco 7000 Series Routers

The sample configuration described in this document enables a PC connected to a Cisco 675 ADSL router to connect via a Cisco ADSLAM and Cisco LightStream(r) 1010 to a Cisco 7000 series router using RFC1483 (bridging). This configuration allows data to be routed to the Internet or other services.

http://www.cisco.com/warp/customer/794/7200dsl_rfc1483.html
(available to registered users)

http://www.cisco.com/warp/public/794/7200dsl_rfc1483.html
(available to non-registered users)

 

Sample Configurations:
PPPoA Session Termination: xDSL to Cisco 7000 Series Routers

The sample configuration described in this document enables a PC connected to a Cisco 675 ADSL router to connect via a Cisco 6100 ADSLAM and Cisco LightStream(r) 1010 to a Cisco 7000 series router using PPPoA. This configuration allows data to be routed to the Internet or other services.

http://www.cisco.com/warp/customer/794/7200dsl_pppoa.html
(available to registered users)

http://www.cisco.com/warp/public/794/7200dsl_pppoa.html
(available to non-registered users)

 

Tech Tip:
T1 PRI Troubleshooting

This document describes the techniques and procedures to troubleshoot PRI problems.

http://www.cisco.com/warp/customer/116/T1_pri.html
(available to registered users)

http://www.cisco.com/warp/public/116/T1_pri.html
(available to non-registered users)

 

Tech Tip:
T1 Layer 1 Troubleshooting

This document describes the techniques and procedures to troubleshoot T1 Layer 1 problems.

http://www.cisco.com/warp/customer/116/T1_layer1.html
(available to registered users)

http://www.cisco.com/warp/public/116/T1_layer1.html
(available to non-registered users)

 

Tech Tip:
T1 Error Events Troubleshooting

This document describes various error events that occur on T1 lines and provides troubleshooting information to fix these errors.

http://www.cisco.com/warp/customer/116/T1_error.html
(available to registered users)

http://www.cisco.com/warp/public/116/T1_error.html
(available to non-registered users)

 

Tech Tip:
T1 Alarm Troubleshooting

This document explains common alarm types that may appear during T1 operation. An explanation of the alarm and common troubleshooting techniques are provided.

http://www.cisco.com/warp/customer/116/T1_alarms.html
(available to registered users)

http://www.cisco.com/warp/public/116/T1_alarms.html
(available to non-registered users)

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High-end Routers
 

Field Notice:
Cisco 12000 Series Allows Configuration of Nonsupported Cisco IOS Features

Some Cisco IOS software features are not supported on the Cisco 12000 series platform, but are configurable via the command line interface. This affects Cisco IOS software Releases 11.2GS and 12.0S.

http://www.cisco.com/warp/customer/770/fn12336.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12336.shtml
(available to non-registered users)

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WAN Switches
 

IGX8400
Field Notice:
Possible Cause Identified for Intermittent Bus Errors on IGX Nodes

In rare instances, the physical arrangement of modules in an IGX8400 node may cause infrequent Universal Bandwidth Unit (UBU) bus errors. These errors, when they occur, are almost always minor and do not affect service.

http://www.cisco.com/warp/customer/770/fn10931.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn10931.shtml
(available to non-registered users)

 

Field Notice:
ASC2 May Not Boot Up Due to PCMCIA Drive Mastership Problems

There are two failure modes covered in this Field Notice:

  1. The AXIS Shelf Controller 2 (ASC2) may fail to boot after power up.
  2. The ASC2 may report four-second timeouts due to the hard drive being busy.

http://www.cisco.com/warp/customer/770/fn12091.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12091.shtml
(available to non-registered users)

 

Tech Tip:
WAN Switch Software Node-by-Node Upgrade Script

This document describes the Cisco recommended 34-point process for a successful IPX, IGX 8400 Series Switch, or BPX 8600 Series Switch software upgrade. This upgrade is for networks running a WAN switch software release that supports the Node-by-Node upgrade feature.

http://www.cisco.com/warp/customer/74/wan_switch_software_upgrade_node.html
(available to registered users)

http://www.cisco.com/warp/public/74/wan_switch_software_upgrade_node.html
(available to non-registered users)

 

BPX 8600
Tech Tip:

ATM Connection Configuration and Troubleshooting for the Cisco BPX 8600 Series Switch

This document is a guide for configuring ATM connections for the Cisco BPX 8600 Series Switch Broadband Switch Module (BXM) using switch software release 8.4.x and later.

http://www.cisco.com/warp/customer/74/atm_connection_intro.html
(available to registered users)

http://www.cisco.com/warp/public/74/atm_connection_intro.html
(available to non-registered users)

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ATM Technologies
 

Sample Configurations:
T1 Unstructured CES using Synchronous Clocking and PVCs

This example uses synchronous clocking.

http://www.cisco.com/warp/customer/121/ces-sample2.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample2.html
(available to non-registered users)

 

Sample Configurations:
T1 Unstructured CES with SRTS Clocking and Soft PVCs

This example uses synchronous residual time stamp (SRTS) clocking mode.

http://www.cisco.com/warp/customer/121/ces-sample3.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample3.html
(available to non-registered users)

 

Sample Configurations:
T1 Unstructured CES with Adaptive Clocking and Soft PVCs

This example uses adaptive clocking mode.

http://www.cisco.com/warp/customer/121/ces-sample4.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample4.html
(available to non-registered users)

 

Sample Configurations:
T1 Structured CES with Synchronous Clocking and Soft PVCs

These examples use synchronous clocking.

http://www.cisco.com/warp/customer/121/ces-sample5.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample5.html
(available to non-registered users)

 

Sample Configurations:
T1 Structured CES with soft PVCs and Channel Associated Signaling (CAS)

This example uses synchronous clocking.

http://www.cisco.com/warp/customer/121/ces-sample6.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample6.html
(available to non-registered users)

 

Sample Configurations:
T1 Unstructured CES with Adaptive Clocking and Soft PVCs over PVP

These examples use adaptive clocking.

http://www.cisco.com/warp/customer/121/ces-sample7.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample7.html
(available to non-registered users)

 

Sample Configurations:
T1 Unstructured CES with Synchronous Clocking and Soft PVCs

PBX2 is clocked from the same clock as PBX1 (from the service provider) or PBX2 is in looped mode (that is, it receives clock from the LS1010 and loops it back to the LS1010).

http://www.cisco.com/warp/customer/121/ces-sample1.html
(available to registered users)

http://www.cisco.com/warp/public/121/ces-sample1.html
(available to non-registered users)

 

Sample Configurations:
LANE, CES, and VBR PVCs in Shaped VP Tunnels

These sample configurations are based on the following prerequisites:

  • Cisco IOS version 11.3(0.8)TWA4 ASP or later for the LightStream 1010 (LS1010).
  • Any version of the Cisco 8540-MSR is acceptable.

http://www.cisco.com/warp/customer/121/PVPshap.html
(available to registered users)

http://www.cisco.com/warp/public/121/PVPshap.html
(available to non-registered users)

 

Sample Configurations:
Using OAM for PVC Management

This sample configuration illustrates how to use OAM to manage permanent virtual connections.

http://www.cisco.com/warp/customer/121/oam.html
(available to registered users)

http://www.cisco.com/warp/public/121/oam.html
(available to non-registered users)

 

Tech Tip:
Understanding ATM Addresses with Cisco Devices

ATM uses addresses to identify and locate ATM devices. This document explains the different types of ATM addresses with a focus on the automatic address assignment used in Cisco devices. Also, the implications for Private Network-Network Interface (PNNI) default levels on Cisco ATM switches are discussed.

http://www.cisco.com/warp/customer/121/atm_addr.html
(available to registered users)

http://www.cisco.com/warp/public/121/atm_addr.html
(available to non-registered users)

 

Sample Configurations:
LANE and CES (Using PVCs) in Unshaped VP Tunnels

These sample configurations are based on the following prerequisite: * Users need to transport circuit emulation service (CES) and LAN emulation (LANE) across the WAN. Therefore, Cisco recommends ASP-PFQ on the LS1010 to ensure good clocking operations. Cisco also recommends RP-NetClock-3 on the 8540-MSR for the same reason.

http://www.cisco.com/warp/customer/121/PVPunshap.html
(available to registered users)

http://www.cisco.com/warp/public/121/PVPunshap.html
(available to non-registered users)

 

Sample Configurations:
Sample Configuration: LANE and CES (Using PVCs) through Hierarchical VP Tunnels

In this configuration, users need to transport CES and LANE across the WAN. This example uses shaped hierarchical VP tunnels to ensure compliance with traffic contract.

http://www.cisco.com/warp/customer/121/LANE_VP_tunnels.html
(available to registered users)

http://www.cisco.com/warp/public/121/LANE_VP_tunnels.html
(available to non-registered users)

 

Sample Configurations:
Multiple Routed Protocols over ATM PVCs Using VC Multiplexing

This document illustrates a sample configuration between two routers and an Asynchronous Transfer Mode (ATM) switch, using multiple routed protocols over permanent virtual circuits (PVCs). The configuration uses VC multiplexing, and the protocols used are IP and Internetwork Packet Exchange (IPX).

http://www.cisco.com/warp/customer/121/routed_rfc1483.html
(available to registered users)

http://www.cisco.com/warp/public/121/routed_rfc1483.html
(available to non-registered users)

 

Sample Configurations:
Multiple Routed Protocols over ATM PVCs Using LLC Encapsulation

This document illustrates a sample configuration between two routers and an Asynchronous Transfer Mode (ATM) switch, using multiple routed protocols over permanent virtual circuits (PVCs). The configuration uses Logical Link Control (LLC) Encapsulation, and the protocols used are IP and Internetwork Packet Exchange (IPX).

http://www.cisco.com/warp/customer/121/routed_LLC.html
(available to registered users)

http://www.cisco.com/warp/public/121/routed_LLC.html
(available to non-registered users)

 

Tech Tip:
Troubleshooting PVC Failures When Using OAM Cells and PVC Management

This document describes troubleshooting tips for PVC failures when using OAM cells and PVC management.

http://www.cisco.com/warp/customer/121/tech-oam.html
(available to registered users)

http://www.cisco.com/warp/public/121/tech-oam.html
(available to non-registered users)

 

Tech Tip:
Understanding Loopback Modes on Cisco Routers

This document examines the two types of loopbacks on Cisco router ATM interfaces.

http://www.cisco.com/warp/customer/121/atmloopback.html
(available to registered users)

http://www.cisco.com/warp/public/121/atmloopback.html
(available to non-registered users)

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IBM Technologies
 

Tech Tip:
Troubleshooting DLSw

This document provides troubleshooting techniques and solutions to the most common DLSw related issues.

http://www.cisco.com/warp/customer/697/dlswts1.html
(available to registered users)

http://www.cisco.com/warp/public/697/dlswts1.html
(available to non-registered users)

 

Tech Tip:
PCMCIA Filesystem Compatibility Matrix

This matrix shows filesystem compatibility for PCMCIA flash cards between various platforms. Typically, you need this information when you load a software image on a router or switch, which is to be used for another router or switch of a different platform.

http://www.cisco.com/warp/customer/63/pcmciamatrix.html
(available to registered users)

http://www.cisco.com/warp/public/63/pcmciamatrix.html
(available to non-registered users)

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Security Products & Technologies
 

Documentation:
Cisco Authentication, Authorization, and Accounting (AAA) Implementation Case Study

This document helps you understand the working relationship among various Cisco AAA components (i.e. NASs, AAA servers, and the AAA database), configure and verify operation of AAA components, and troubleshoot typical problems found in AAA environments. This detailed document is a must for network integrators and engineers dealing with AAA in the enterprise.

http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/aaaisg/index.htm
(available to registered users)

http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/aaaisg/index.htm
(available to non-registered users)

 

Tech Tip:
Decoding a Sniffer-Trace of RADIUS Transaction Including Attribute 26

This document provides an example of the breakdown of packets in an exchange between a RADIUS client and a RADIUS server, which includes sending vendor-specific attribute 26, and Cisco vendor code 9.

http://www.cisco.com/warp/customer/480/17.html
(available to registered users)

http://www.cisco.com/warp/public/480/17.html
(available to non-registered users)

 

Tech Tip:
Password Recovery Procedure for the Cisco Secure IDS (Formerly NetRanger(r) Product) Sensor

This document describes how to recover a password on a Cisco Secure IDS Sensor workstation.

http://www.cisco.com/warp/customer/474/34.html
(available to registered users)

http://www.cisco.com/warp/public/474/34.html
(available to non-registered users)

 

Configuration Cookbook:
Cisco Secure Integrated Software Configuration Cookbook

This cookbook contains instructions for configuring Cisco routers to run the following CSIS features: Context-Based Access Control (CBAC) and authentication proxy. The cookbook includes 10 sample configurations, troubleshooting information, and tips for implementing the features.

http://www.cisco.com/warp/customer/793/ios_fw/index.shtml
(available to registered users)

http://www.cisco.com/warp/public/793/ios_fw/index.shtml
(available to non-registered users)

 

Sample Configuration:
CiscoSecure NT: Configuring Large Scale Dialout Using TACACS+

This configuration sets up a local router to download routes from CiscoSecure NT, so that when traffic hits the local router and is destined for a remote router, the local router knows where to send the traffic because the static routes and dialer information have been downloaded from CiscoSecure NT.

http://www.cisco.com/warp/customer/480/16.html
(available to registered users)

http://www.cisco.com/warp/public/480/16.html
(available to non-registered users)

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WAN Technologies
 

FAQ:
WAN Compression FAQs

This document answers frequently asked questions about WAN compression. It includes sections on compression overview, implementing compression in Cisco routers, and troubleshooting compression.

http://www.cisco.com/warp/customer/116/wan_compression_faq.html
(available to registered users)

http://www.cisco.com/warp/public/116/wan_compression_faq.html
(available to non-registered users)

 

Sample Configurations:
X.25 PVC to SVC Configurations

Permanent Virtual Circuit or Connection (PVC) is a virtual circuit that is permanently established. PVCs save bandwidth associated with circuit establishment and tear down in situations where certain virtual circuits must exist all the time. Switched Virtual Circuit (SVC) is a virtual circuit that is dynamically established on demand and is torn down when transmission is complete. SVCs are used in situations where data transmission is sporadic.

http://www.cisco.com/warp/customer/133/x25_pvc_to_svc_config.html
(available to registered users)

http://www.cisco.com/warp/public/133/x25_pvc_to_svc_config.html
(available to non-registered users)

 

Sample Configurations:
X.25 Load Balancing With Hunt Groups

This document describes the use of "hunt groups" as a method of load balancing among a large number of virtual circuits (VCs).

http://www.cisco.com/warp/customer/133/x25_load_balancing.html
(available to registered users)

http://www.cisco.com/warp/public/133/x25_load_balancing.html
(available to non-registered users)

 

Sample Configurations:
X.25 Local Switching

X.25 is a protocol for WAN communications that defines how connections between user devices and network devices are established and maintained. Local switching allows a single router to provide media conversion between SDLC and Token Ring and between QLLC and LAN.

http://www.cisco.com/warp/customer/133/x25_local_switching.html
(available to registered users)

http://www.cisco.com/warp/public/133/x25_local_switching.html
(available to non-registered users)

 

Sample Configurations:
X.25 Over Frame-Relay with TCP Configured

Annex G (X.25 over Frame Relay) facilitates the migration from an X.25 backbone to a Frame Relay backbone by permitting encapsulation of ITU-T X.25/X.75 traffic within a Frame Relay connection. The use of X.25 as a network backbone is becoming obsolete as modern networks change their backbones to newer technologies such as Frame Relay, ATM, and IP.

http://www.cisco.com/warp/customer/133/x25_over_frame_w_tcp.html
(available to registered users)

http://www.cisco.com/warp/public/133/x25_over_frame_w_tcp.html
(available to non-registered users)

 

Sample Configurations:
X.25 over Frame-Relay without TCP Configured (Annex G)

This document describes the use of Annex G (X.25 over Frame Relay) to facilitate the migration from an X.25 backbone to a Frame Relay backbone.

http://www.cisco.com/warp/customer/133/x25_over_frame_wo_tcp.html
(available to registered users)

http://www.cisco.com/warp/public/133/x25_over_frame_wo_tcp.html
(available to non-registered users)

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Network Management Systems Products & Technologies
 

Tech Tip:
How Do I Stop TrafficDirector from Asking to Shutdown Daemons?

How Do I Stop TrafficDirector from Asking to Shutdown Daemons? Each time when I shutdown the TrafficDirector application I receive a confirmation window asking if I want to shutdown all daemons.

http://www.cisco.com/warp/customer/477/
(available to registered users)

http://www.cisco.com/warp/public/477/
(available to non-registered users)

 

Tech Tip:
Turning Up Tracing

The Cisco Intelligent Contact Management (ICM) Event Management System (EMS) provides an API for ICM processes to use when reporting events.

http://www.cisco.com/warp/customer/78/34.html
(available to registered users)

http://www.cisco.com/warp/customer/78/34.html
(available to non-registered users)

 

Tech Tip:
How to Troubleshoot Cisco E-Mail Database Problems with Microsoft SQL Server

This Tech Note describes how to troubleshoot some of the more common issues encountered when installing and running Cisco eMail Manager using Microsoft SQL Server.

http://www.cisco.com/warp/customer/640/11.html
(available to registered users)

http://www.cisco.com/warp/public/640/11.html
(available to non-registered users)

 

Tech Tip:
What Information Does the InBasket Status Screen Display?

For each Cisco eMail Manager mailbox, the InBasket Status screen shows to following values.

http://www.cisco.com/warp/customer/640/13.html
(available to registered users)

http://www.cisco.com/warp/public/640/13.html
(available to non-registered users)

 

Tech Tip:
Why Does CeM Keep Sending Mail to the SMTP Server Once It's Been Rejected?

If you reply to an email that has a bad return email address, the Simple Mail Transfer Protocol (SMTP) server rejects the email. However, Cisco eMail Manager (CeM) keeps trying to send the email message as many times as specified in the Outgoing Mail settings (the default is 1200).

http://www.cisco.com/warp/customer/640/12.html
(available to registered users)

http://www.cisco.com/warp/public/640/12.html
(available to non-registered users)

 

Tech Tip:
How Do I Handle RME 3.1 Log Files that Have Become Too Large?

The information in this document is based on Resource Manager Essentials (RME) 3.1.

http://www.cisco.com/warp/customer/477/RME/rme3.1_logfilesize.html
(available to registered users)

http://www.cisco.com/warp/public/477/RME/rme3.1_logfilesize.html
(available to non-registered users)

 

Tech Tip:
After Changing IP, Hostname, or Web Port, RME 2.2 No Longer Works: How to Fix This

The information in this document is applicable for Version 2.2 of Resource Management Essentials (RME). This document tells you how to make sure RME operates correctly after installing Cisco Works 2000.

http://www.cisco.com/warp/customer/477/
(available to registered users)

http://www.cisco.com/warp/public/477/
(available to non-registered users)

 

Tech Tip:
How to Link a Rule that You Used Previously as a Cisco eMail Subroutine

Once you use a rule as a subroutine in Cisco eMail, you won't be able to link it in a rule tree. If you decide that a subroutine will be more effective as a rule, you can make a manual change to the rules.cfg file.

http://www.cisco.com/warp/customer/640/10.html
(available to registered users)

http://www.cisco.com/warp/public/640/10.html
(available to non-registered users)

 

Tech Tip:
How Does Reporting Work in Cisco eMail Manager?

This document explains the different types of reporting available for the Cisco eMail Manager.

http://www.cisco.com/warp/customer/640/9.html
(available to registered users)

http://www.cisco.com/warp/public/640/9.html
(available to non-registered users)

 

Tech Tip:
How Does the Cisco eMail Manager Rules Engine Work?

The Cisco eMail Manager uses a hierarchical, branching rules logic to process both free form e-mail and HTML- based forms. The logic allows any number of tests and actions to be performed on a single message, regardless of whether the result of a test is true or false.

http://www.cisco.com/warp/customer/640/8.html
(available to registered users)

http://www.cisco.com/warp/public/640/8.html
(available to non-registered users)

 

Tech Tip:
Using the Inspect Tool

This document describes how you can use the Inspect tool to run tests to identify installation and configuration errors in a Cisco Intelligent Contact Management (ICM) system.

http://www.cisco.com/warp/customer/78/44.html
(available to registered users)

http://www.cisco.com/warp/public/78/44.html
(available to non-registered users)

 

Tech Tip:
Configuring Multiple Customers on a Single Cisco Collaboration Server

This document provides a template and procedure for configuring a hosting environment with Cisco Collaboration Server 3.0. You can configure your environment with individual logos and text.

http://www.cisco.com/warp/customer/640/6.html
(available to registered users)

http://www.cisco.com/warp/public/640/6.html
(available to non-registered users)

 

Tech Tip:
How Do I Handle RME 2.x Log Files that Have Become Too Large?

This document explains how to trim Resource Manager Essentials 2.x log files if they become too large.

http://www.cisco.com/warp/customer/477/
(available to registered users)

http://www.cisco.com/warp/public/477/
(available to non-registered users)

 

FAQ:
Cisco eMail Manager Mailing List Frequently Asked Questions

This document contains frequently asked questions about mailing lists in Cisco eMail Manager.

http://www.cisco.com/warp/customer/640/14.html
(available to registered users)

http://www.cisco.com/warp/public/640/14.html
(available to non-registered users)

 

FAQ:
Cisco eMail Manager Frequently Asked Questions

This document contains answers to frequently asked questions about the Cisco eMail Manager.

http://www.cisco.com/warp/customer/640/7.html
(available to registered users)

http://www.cisco.com/warp/public/640/7.html
(available to non-registered users)

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Voice & Telephony Products & Technologies
  SC2200 & VSC2700
 

Field Notice:
Misprinted Software CDs May Affect Release 4.2(19) of the SC2200 and VSC2700

Software CDs for the 4.2(19) release of the SC2200 and VSC2700 Media Gateway Controllers may have been improperly manufactured. The software CD delivered for release 4.2(19) of the VSC2700 that should contain the TCT tool software (Part Number 80-4255-03) may contain a copy of the system software and not the TCT tool software. The software CD delivered for release 4.2(19) of the SC2200 that should contain the system software (Part Number 80-3832-04) may contain a copy of the TCT tool and not the system software.

http://www.cisco.com/warp/customer/770/fn12216.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12216.html
(available to non-registered users)

 

Tech Tip:
Using Remote Process Monitor Console (Procmon)

Procmon is the main interface console process, which you can use to query information indirectly from your site's Automatic Call Distributor (ACD). The Cisco ICM processes residing on the Peripheral Gateway (PG) allow you to list agents, skills, services and call data; increase tracing on an ICM process; and query for ACD-specific information.

http://www.cisco.com/warp/customer/78/35.html
(available to registered users)

http://www.cisco.com/warp/public/78/35.html
(available to non-registered users)

 

Tech Tip:
Changing the IP Address for Cisco CallManager Version 3.0

This document provides the steps for changing the IP address on a Cisco CallManager server. Cisco CallManager's IP address may need to be changed for a variety of reasons, including moving the server from one segment to another or to resolve a duplicate IP address problem.

Note: The link to this article has been changed since the newsletter's publication. The following link will take you to a directory where the article can be found.

http://www.cisco.com/warp/customer/788
(available to registered users)

http://www.cisco.com/warp/public/788
(available to non-registered users)

 

Tech Tip:
Changing the CallManager Server Name for Cisco CallManager Version 3.0

This document provides the steps for changing the name of a Cisco CallManager server. The Cisco CallManager server name may need to be changed for a variety of reasons, including a name conflict on the network or if the current name is not meaningful.

Note: The link to this article has been changed since the newsletter's publication. The following link will take you to a directory where the article can be found.

http://www.cisco.com/warp/customer/788
(available to registered users)

http://www.cisco.com/warp/public/788
(available to non-registered users)

 

Tech Tip:
Voice Mail Integration for Cisco CallManager Version 2.4

This document provides a high-level overview of the voice mail options available with Cisco CallManager Cisco eMail Version 2.4. This document also offers troubleshooting tips.

Note: The link to this article has been changed since the newsletter's publication. The following link will take you to a directory where the article can be found.

http://www.cisco.com/warp/customer/788
(available to registered users)

http://www.cisco.com/warp/public/788
(available to non-registered users)

 

Configuration Cookbook:
VoIP with Gatekeeper

This document illustrates how to configure and verify a VoIP network with a gatekeeper.

http://www.cisco.com/warp/customer/793/voip/voip_gw_gk.html
(available to registered users)

http://www.cisco.com/warp/public/793/voip/voip_gw_gk.html
(available to non-registered users)

 

Sample Configurations:
VoIP with Interactive Voice Response (IVR)

This document shows you how to configure and troubleshoot basic interactive voice response (IVR) in a Voice over IP (VoIP) network with gateways.

http://www.cisco.com/warp/customer/793/voip/voip_gw_ivr2.html
(available to registered users)

http://www.cisco.com/warp/public/793/voip/voip_gw_ivr2.html
(available to non-registered users)

 

Sample Configurations:
X.25 over ISDN Bidirectional Call

Current Cisco IOS software enables circuit-switched X.25 clients---Packet Assembler/Disassembler (PAD), X.25 switching, and Qualified Logical Link Control (QLLC)---to initiate calls and dynamically bring the X.25 context (which runs the X.25 protocol) up or down as needed. This capability allows packet-switched traffic over ISDN.

http://www.cisco.com/warp/customer/133/x25_over_isdn_bidirect.html
(available to registered users)

http://www.cisco.com/warp/public/133/x25_over_isdn_bidirect.html
(available to non-registered users)

 

Tech Tip:
VCO/4K: E1 Signal Passing CRC Configuration

This document describes the use of CRC when passing E1 signaling into and out of the Cisco VCO(/4K Open Programmable Switch.

Note: The link to this article has been changed since the newsletter's publication. The following link will take you to a directory where the article can be found.

http://www.cisco.com/warp/customer/788
(available to registered users)

http://www.cisco.com/warp/public/788
(available to non-registered users)

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Web Scaling
 

FAQ:
[C2] Cache Engine Frequently Asked Questions

This Tech Tip answers questions that customers frequently ask about the Cache Engine product.

http://www.cisco.com/warp/customer/110/cache-engine-FAQ.html
(available to registered users)

http://www.cisco.com/warp/public/110/cache-engine-FAQ.html
(available to non-registered users)

 

Tech Tip:
What Does the "Unable to Notify Service of Security Parameters" Error Message Mean?

You're most likely to receive the "Unable to Notify Service of Security Parameters" error message after a new installation of the Altiga Networks Virtual Private Network (VPN) Client. This error is caused by the Anetike service not being loaded.

http://www.cisco.com/warp/customer/471/unablenotify.html
(available to registered users)

http://www.cisco.com/warp/public/471/unablenotify.html
(available to non-registered users)

 

Tech Tip:
Installing Digital Certificates on the Cisco VPN Concentrator

This Tech Note explains how to configure a Cisco Virtual Private Network (CVPN) Concentrator to authenticate using digital certificates instead of pre-shared keys. First, you need to install the Issuing or Root Certificates Authority's certificate. Then enroll the CVPN Concentrator into the Public Key Infrastructure (PKI). After the PKI processes your enrollment request, you can retrieve and install the issued Identity Certificate for the CVPN Concentrator.

http://www.cisco.com/warp/customer/471/installdigital.html
(available to registered users)

http://www.cisco.com/warp/public/471/installdigital.html
(available to non-registered users)

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Optical Transport
 

Field Notice:
Cisco ONS 15454 Node Name Limited to 19 Characters (R2.0.0)

In release R2.0.0 there is a 19 character Network Element (NE) name limitation that isn't validated by the graphical user interface (GUI). If you assign a name of 20 characters or more using the GUI, the information is saved and the system operates normally, until a Timing Communications and Control Card (TCC) side-switch is performed. When a side-switch is performed, the TCC boots with the IP address set to 0.0.0.0 or 255.255.255.255. All IP connectivity to the node is lost and, potentially, traffic is affected.

http://www.cisco.com/warp/customer/770/fn12196_04142000.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12196_04142000.html
(available to non-registered users)

 

Field Notice:
2.0.1 GA Announcement -- Resolution for Previous Field Notices 1, 2, 5, 6, and 9

This Field Notice introduces the General Availability (GA) of software maintenance release 2.0.1. Release 2.0.1 was initiated to introduce software maintenance enhancements to Release 2.0 and to introduce a limited number of customer requested features. The introduction of software maintenance enhancements were implemented to increase stability and quality to release 2.0 and all customers are recommended to replace Release 2.0 with Release 2.0.1.

http://www.cisco.com/warp/customer/770/fn12163.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12163.html
(available to non-registered users)

 

Field Notice:
DS3-12 -- Incorrect Coding in C2 Byte of Optical Backbone Facility

When receiving Synchronous Transport Signal (STS) timeslots carrying asynchronous DS3s on the optical backbone facility, such as OC12 and OC48, certain vendors may insert a value 0x01 (equipped non-specific payload) into the C2 byte in the Synchronous Optical Network (SONET) STS path overhead. The C2 label, in this instance, would indicate that there is DS3 traffic in the Synchronous Payload Envelope (SPE), but it is not defined as asynchronous DS3.

http://www.cisco.com/warp/customer/770/fn12162.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12162.html
(available to non-registered users)

 

Field Notice:
TCC Might Boot up with Wrong IP Address (Release 1.0.x Only)

Using version 1.0 software, the terminating call control (TCC) card (rev 009x or higher) may boot up with the wrong IP address.

http://www.cisco.com/warp/customer/770/fn12161.html
(available to registered users)

http://www.cisco.com/warp/public/770/fn12161.html
(available to non-registered users)

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Intelligent Contact Management (ICM)
 

Tech Tip:
Using the Ping Utility

The Ping utility verifies connections to a remote computer or computers. You can use the Ping utility to test both the computer name and the IP address.

http://www.cisco.com/warp/customer/78/33.html
(available to registered users)

http://www.cisco.com/warp/public/78/33.html
(available to non-registered users)

 

Tech Tip:
Using the ASAI_TEST Utility

ASAI_TEST is a utility that allows you to check the connectivity between the Cisco Intelligent Contact Management (ICM) Peripheral Gateway (PG) and the Lucent Definity MapD card.

http://www.cisco.com/warp/customer/78/31.html
(available to registered users)

http://www.cisco.com/warp/public/78/31.html
(available to non-registered users)

 

Tech Tip:
Using the OPC Test Command Line Utility

The Open Peripheral Controller (OPC) Test command line utility allows you to view and set various parameters on a Cisco ICM Peripheral Gateway (PG) OPC process.

http://www.cisco.com/warp/customer/78/30.html
(available to registered users)

http://www.cisco.com/warp/public/78/30.html
(available to non-registered users)

 

Tech Tip:
Using the RTtest Utility

This Tech Note describes the RTtest utility, which allows you to view and set various parameters on a Cisco Intelligent Contact Management (ICM) Call Router.

http://www.cisco.com/warp/customer/78/45.html
(available to registered users)

http://www.cisco.com/warp/public/78/45.html
(available to non-registered users)

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Network Services
 

DistributedDirector Troubleshooting Tips

This document lists various conditions you may experience when using the DistributedDirector (DD) and describes how to resolve them.

http://www.cisco.com/warp/customer/787/dd_troubleshoot.html
(available to registered users)

http://www.cisco.com/warp/public/787/dd_troubleshoot.html
(available to non-registered users)

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Cisco IOS Software*
 

Tech Tip:
Cisco IOS Software Roadmap

The Cisco IOS Software Roadmap is a graphic index page which contains links to every Cisco IOS Software Release Technical Tip. This page shows the evolution of all Cisco IOS Software Releases to date and is a great resource for finding a particular IOS release.

http://www.cisco.com/warp/customer/620/roadmap.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/roadmap.shtml
(available to non-registered users)

 

Tech Tip:
LAT Node and Service Names

This document provides example of how local-area transport (LAT) node and service names are used with Cisco IOS software. The examples also demonstrate how LAT connections can be monitored.

http://www.cisco.com/warp/customer/74/latnodenames.html
(available to registered users)

http://www.cisco.com/warp/public/74/latnodenames.html
(available to non-registered users)

 

Field Notice:
Cisco IOS HTTP Server Vulnerability

This is a security advisory for Cisco IOS HTTP Server Vulnerability, revision 1.0.

http://www.cisco.com/warp/customer/707/ioshttpserver-pub.shtml
(available to registered users)

http://www.cisco.com/warp/public/707/ioshttpserver-pub.shtml
(available to non-registered users)

 

Field Notice:
Catalyst MSFC IOS 12.1(1)E2 Has Been Deferred

This is a field notice regarding Catalyst MSFC IOS 12.1(1)E2 deferral.

http://www.cisco.com/warp/customer/770/fn12509.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12509.shtml
(available to non-registered users)

 

Field Notice:
Cisco IOS Software Release 12.1(1)E2

This is a Field Notice regarding Cisco IOS software Release 12.1(1)E2.

http://www.cisco.com/warp/customer/770/fn12256.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12256.shtml
(available to non-registered users)

 

Field Notice:
Cisco IOS Release 12.0(10)S1

Cisco IOS software Release 12.0(10)S1 supports the new Cisco 7500 series Versatile Interface Processor (VIP) 4.

http://www.cisco.com/warp/customer/770/fn12446.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12446.shtml
(available to non-registered users)

 

Security Advisory:
Cisco IOS Software TELNET Option Handling Vulnerability

A defect in multiple Cisco IOS software versions will cause a Cisco router to reload unexpectedly when the router is tested for security vulnerabilities by security scanning software programs. The defect can be exploited repeatedly to produce a consistent denial of service (DoS) attack. Customers using the affected Cisco IOS software releases are urged to upgrade as soon as possible to later versions that are not vulnerable to this defect.

http://www.cisco.com/warp/customer/707/iostelnetopt-pub.shtml
(available to registered users)

http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml
(available to non-registered users)

 

Release:
Cisco IOS Release 11.1(33)CC1 Now Available On CCO on May 16

Supports: This Early Deployment release supports the isco 7200, RSP 7000 and 7500 platforms.

 

Release:
Cisco IOS Release 12.0(7)W5(15c) Now Available On CCO on May 15

Supports: This Early Deployment release supports the LS1010, Cisco 8510M, and Cisco 8540M platforms.

 

Release:
Cisco IOS Release 12.1(2) Now Available On CCO on May 15

Supports: This Early Deployment release supports multiple platforms.

 

Release:
Cisco IOS Release 12.1(1)DA Now Available On CCO on May 12

Supports: This Early Deployment release supports the Cisco 6130 platform.

 

Release:
Cisco IOS Release 12.1(1)E2 Now Available On CCO on May 4

Supports: This Early Deployment release supports the Cisco 7100, 7200, C6MSFC, AT6000, RSP 7000, and 7500 platforms.

 

Release:
Cisco IOS Release 12.0(10)S1 Now Available On CCO on May 3

Supports: This Early Deployment release supports the Cisco 12000, 7200, and RSP 7000, and 7500 platforms.

 

Release:
Cisco IOS Release 12.0(9)W5(17) Now Available On CCO on April 25

Supports: This Early Deployment release supports the Cisco 3600, 4500, 4700, 7200, C5RSFC, C5RSM, RSP 7000, and 7500 platforms.

 

Release:
Cisco IOS Release 11.1(33)CC Now Available On CCO on April 24

Supports: This Early Deployment release supports the Cisco 7200 and 7500 platforms.

 

Release:
Cisco IOS Release 11.3(1)DA8 Now Available On CCO on April 24

Supports: This Early Deployment release supports the Cisco 6200 platform.

 

Release:
Cisco IOS® Release 12.0(11) Now Available on Cisco Connection Online (CCO) on May 23

Supports: This Major Release supports multiple platforms.

 

Release:
Cisco IOS® Release 12.1(1)XE Now Available on Cisco Connection Online (CCO) on May 22

Supports: This Early Deployment release supports the VG200 platform.

 

Release:
Cisco IOS® Release 12.1(2)T Now Available on Cisco Connection Online (CCO) on May 22

Supports: This Early Deployment release supports multiple platforms.

 

Release:
Cisco IOS® Release 12.1(1)E3 Now Available on Cisco Connection Online (CCO) on May 22

Supports: This Early Deployment release supports the Cisco 7100, 7200, and RSP platforms.

 

*You can find all these releases at http://www.cisco.com/cgi-bin/iosplanner/iosplanner.cgi? (available to Cisco end users and partner customers with Software Center Access)

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