Cisco Logo Cisco Technical Assistance Center (TAC)
Newsletter
TAC Certified
Vol. 3, No. 5 May 2001 Unmatched Online Technical Support www.cisco.com/tac
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In This Issue:
What's Hot
Virtual Private Network (VPN)
Security
IP Routing Protocols
DSL
Cable
Access-Dial
LAN
Router Issues
WAN Technologies
WAN Switching
Voice and Telephony
ATM
IBM
Optical Platforms
Content Delivery Devices
Customer Contact
Cisco IOS® Software
TAC Newsletter Archive
About This Newsletter
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...please visit the "About This Newsletter", located at the end of this newsletter.

If you prefer to read the current issue of this newsletter on line in HTML format, please visit: http://www.cisco.com/tac/newsletter



Ongoing Changes to Cisco TAC Web Site Services

As announced in the last three issues of the Cisco TAC Newsletter, numerous changes are being made to the TAC Web Site:

  • An improved TAC Case Open Tool, based on recent customer feedback, has just been implemented on the TAC Web Site. This enhanced Web-based tool provides you with an easy and convenient way to open a trouble ticket with the Cisco TAC -- without ever having to wait on the telephone.
  • We look forward to receiving your ongoing feedback about how this tool can be improved to meet your everyday support needs.

    To send feedback about the Case Open Tool, please visit: http://www.cisco.com/public/support/feedback/solicited-promo/global.html

    To check out or use the Case Open Tool, please visit: http://www.cisco.com/tac/caseopen

  • A Technical Tips section is now organized by technology areas, making content easier than ever to locate. To access this reorganized Technical Tips section, please visit: http://www.cisco.com/public/technotes/serv_tips.shtml
  • A "Guided TAC Search" tool has been made available to help you locate technical documents pertinent to your network issues (please see "What's Hot" article below).
  • A redesigned, user-friendly Cisco TAC Home Page has been deployed to help facilitate content navigation.

The Cisco TAC values your input, and we are working hard to implement your great ideas. Please feel free to provide us ongoing feedback at:

http://www.cisco.com/public/support/feedback/solicited-promo/global.html


What's Hot

Cisco Output Interpreter Tool - MAJOR ENHANCEMENTS:
Troubleshooting Made Easier for Common Router and PIX Firewall Issues

The TAC Output Interpreter is a powerful online tool that now offers easier troubleshooting assistance for router and PIX® Firewall issues.

For routers, new commands supported by this enhanced tool include the following:

  • "show running-config" (security-posture analysis): The Output Interpreter will provide you with an online report that contains suggestions to improve security for interactive access and logins, IP routing (including path integrity), network/router management services (Simple Network Management Protocol [SNMP] v1, HTTP service), and system/activity logs. This tool offers support for Cisco IOS® Versions 11.2 through 12.1.
  • "show tech-support": The Output Interpreter will provide a health check of your equipment, including problems related to buffers, code version, configuration registry, process CPU, process memory, and other issues.

For the Cisco PIX Firewall, the Output Interpreter now supports the "write terminal" command. The tool will review the basic configuration of your PIX Firewall, identify errors, and provide security and performance tips.

For instant router and PIX Firewall problem analysis and suggestions for problem resolution, please visit the Output Interpreter tool at:

http://www.cisco.com/support/OutputInterpreter/
(available to registered users)


Cisco IOS Error Message Decoder Tool - NEW:
An Easy Way to Interpret Cisco IOS Error Messages

The new Cisco IOS® Error Message Decoder tool helps you research and resolve Cisco IOS error messages quickly and conveniently.

Simply paste your one- or two-line error message into the text field and click "Submit." Within moments, you will receive a description of the error message and a recommendation, along with links to suggested Cisco TAC Web support resources useful for resolving your issue.

Try out the new Cisco IOS Error Message Decoder tool at:

http://www.cisco.com/support/Errordecoder/error-decoder.html
(available to registered users)


Cisco Troubleshooting Assistant Tool - ENHANCED:
New Troubleshooting Help for the Cisco 3600 Series Router and IP Routing Technologies

For experienced users, the Cisco Troubleshooting Assistant tool now supports a "Solution Search" knowledge base for the Cisco 3600 Series Router. "Solution Search" saves time by presenting potential solutions after users submit a description of the issue and answers to just a few questions.

For novice users, the Troubleshooting Assistant tool provides an enhanced "Step-by-Step" knowledge base for the Cisco 3600 Series Router and IP routing technologies, including the following advantages:

  • The Cisco 3600 Series Router knowledge base helps you troubleshoot issues that relate to booting, console, memory, modules, and downloading images.
  • The IP Routing knowledge base includes a new multicast section with information on dense mode, sparse mode, Internet Group Management Protocol (IGMP) group, and reverse path failures.

If you are experienced with Cisco 3600 Series Router issues, please visit:

http://www.cisco.com/tac/newsletter/vol3no4/3600.html
(available to registered users)

If you are new to Cisco 3600 Series Router issues, please visit:

http://www.cisco.com/tac/newsletter/vol3no4/3600stepbystep.html
(available to registered users)

If you are new to Cisco IP Routing technology, please visit:

http://www.cisco.com/tac/newsletter/vol3no4/iproutstepbystep.html
(available to registered users)

Note: "Solution Search" was formerly called "Advanced Search".


Initial Configuration Top Issues - New:
One-Stop-Shop for the Latest Configuration Procedures

The new TAC "Initial Configuration Top Issues" section is a compilation of extensive configuration procedures supporting various Cisco devices and technology platforms, including:

  • Access
  • ATM
  • IBM
  • IP Routing Protocols
  • LAN
  • Network Management Systems
  • Security
  • Voice and Telephony
  • WAN

Regardless of your experience level, the extensive configuration sample guides will ensure that you have a successful initial configuration, from start to finish.

To access initial configuration procedures for Cisco-supported technologies, please visit:

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

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


Content Delivery Devices Top Issues - NEW:
Solutions for Common Content Networking Issues

The TAC "Content Delivery Devices Top Issues" section offers answers to the most common customer content-networking issues, including:

  • Understanding and configuring the Cisco CSS 11000
  • Load Balancing with the CSS 11000 and with LocalDirector
  • Configuring Stickiness Based on SSL and Cookies
  • Configuring and Troubleshooting WCCP on Routers and Cache Engines
  • Configuring Redundant Failover on the CSS 11000 and on LocalDirector
  • Upgrading CSS 11000 Software
  • Configuring and Troubleshooting Virtual IP Interfaces on CSS 11000s
  • Configuring Redirection on the CSS 11000 and on LocalDirector

To access the "Content Delivery Devices Top Issues" section, please visit:

http://www.cisco.com/warp/customer/117/cdn_top_issues/cdn_top_issues_index.shtml
(available to registered users)

http://www.cisco.com/warp/public/117/cdn_top_issues/cdn_top_issues_index.shtml
(available to non-registered users)


Access-Dial Technologies Top Issues - ENHANCED:
Updated Troubleshooting Tips for Common Access-Dial Technologies

The TAC "Access-Dial Technologies Top Issues" section now provides new technical tips and sample configurations to help you resolve the most frequently reported customer access-dial-related network concerns, including:

  • Configuring and troubleshooting ISDN Basic Rate Interfaces (BRIs)
  • Configuring modem recovery on access servers
  • Configuring dial backup for WAN or serial links using backup interface, floating static routes, or dialer watch
  • Troubleshooting T1s and E1s
  • Diagnosing and troubleshooting authentication, authorization, and accounting (AAA)
  • Configuring virtual private dialup networks with Remote Access Dial-In User Service (RADIUS) or TACACS+ servers

To access these updated access-dial resources, please visit:

http://www.cisco.com/warp/customer/471/top_issues/access/top_issues_access.shtml
(available to registered users)

http://www.cisco.com/warp/public/471/top_issues/access/top_issues_access.shtml
(available to non-registered users)


Cable Top Issues - UPDATED:
New Support Resources for Common Cable Issues

The updated TAC "Cable Top Issues" section provides you with the latest step-by-step solutions to the most frequently reported customer challenges with Cisco Cable products and technologies, including:

  • Troubleshooting DHCP Problems in Cable Networks Using Cisco Network Registrar Debugs: Provides troubleshooting techniques that help you restore connectivity to cable modems and CPE
  • CPE Not Able To Connect In: Provides troubleshooting techniques and a flowchart of the steps necessary for you to achieve customer premises equipment (CPE) connectivity
  • How to build DOCSIS Configuration Files for DOCSIS 1.0 Using Cisco DOCSIS CPE Configurator V3.2: Explains the configuration of Data-Over-Cable Service Interface Specification (DOCSIS) files and the parameters that you need to enable different levels of service
  • Updated General CM and CMTS Sample Configurations: Explains cable modem termination system (CMTS) all-in-one configuration, cable modem voice configurations, cable bundling, and more...
  • Cable Source-Verify Commands and IP Address Security: Describes the cable source-verify suite of commands that enable you to optimize the IP address security enhancements
  • Features, Differences, and Cisco IOS® Software Support for Cable Modem Cards for the Cisco uBR7200 Universal Broadband Router Series: Lists the information that you need to select and support cable modem cards

To access the "Cable Top Issues" section, please visit:

http://www.cisco.com/warp/customer/109/top_issues/cable/cable_top_issues.shtml
(available to registered users)

http://www.cisco.com/warp/public/109/top_issues/cable/cable_top_issues.shtml
(available to non-registered users)


WAN Technology Pages - UPDATED:
Additional Support Information for WAN Design and Performance

Online technical content is now available for additional Cisco WAN-enabled technologies support, including:

  • Advice for optimizing the design of ISDN, packet service, and large-scale IP internetworks
  • Explanation of single clock sources
  • Overview of congestion management
  • Summary of Cisco IOS® Software Quality-of-Service (QoS) solutions
  • Tips for tuning, managing, and enhancing the performance of Cisco 7200 Series Routers and X.25 network devices

To access this updated content for Cisco WAN design and performance, please visit the WAN section at:

http://www.cisco.com/cgi-bin/Support/PSP/index.pl?i=Technologies
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/index.pl?i=Technologies
(available to non-registered users)


ATM Technology Pages - NEW:
"Inverse Multiplexing for ATM" Technical Content Now Available Online

The TAC ATM Technology Pages now offer helpful Web-based information for researching and resolving your "inverse multiplexing over ATM (IMA)" issues. This new content will guide you through implementing, operating, and troubleshooting IMA, including:

  • Advice for identifying and managing IMA faults
  • IMA specifications and documentation
  • Reasons for cyclic redundancy check (CRC) errors on your ATM interface
  • Sample configurations for Cisco 2600, 3600, and 7000 Series Multiport T1/E1 ATM Network Modules

To access the Cisco IMA information, please visit:

http://www.cisco.com/cgi-bin/Support/PSP/psp_view.pl?p=Internetworking:ATM:IMA
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:ATM:IMA
(available to non-registered users)


Optical Transport Product Pages - UPDATED:
Additional Support Information for Cisco Optical Products Now Available On Line

The TAC offers online technical content for several additional Cisco Optical Networking System (ONS) products, including:

  • Cisco ONS 15327 Optical Networking System
  • Cisco ONS 15454 Optical Transport Platform
  • Cisco ONS 15516 Optical Filter Solution

These new Optical Transport Product Pages contain numerous frequently asked questions and technical tips for installing, configuring, or troubleshooting Cisco Optical products.

To access helpful resources for Cisco Optical products, please visit the "Cisco Optical Transport" section at:

http://www.cisco.com/cgi-bin/Support/PSP/index.pl?i=Products
(available to registered users)

http://www.cisco.com/pcgi-bin/Support/PSP/index.pl?i=Products
(available to non-registered users)


Cisco TAC Web Tools Seminar - LIVE AND RECORDED SESSIONS:
Convenient, Free Training on Cisco Web-Based Technical Support Resources

The online Cisco TAC Web Tools Seminar introduces you to the newly redesigned Cisco TAC Web Site and provides training on how to use its online technical support resources effectively.

To accommodate the high demand for this seminar, we have scheduled additional live training sessions in June and July. In addition, a recorded version of the one-hour seminar is now available for you to access on line anytime.

The seminar will teach you how to find the technical information necessary for:

  • Designing and supporting your networks
  • Enhancing your networking skills
  • Implementing and configuring products and networks
  • Troubleshooting network issues

To register for a live online seminar or to access the recorded session, please visit:

http://cisco.evoke.com
(available to registered and non-registered users)

An international contact number is available for the live seminar. Please note that fees for international calls are the responsibility of the customer.


Cisco TAC Web Site - IMPROVED:
New Feature Enables Faster, Accurate Searches

The Cisco TAC Web Site now offers the Guided TAC Search tool as a new feature for improved content navigation. This interactive application asks you questions about your issue, identifies only relevant technical content to address your everyday network issues, and shortens your research time.

For specific Cisco products and technologies, the Guided TAC Search tool leads you to the information that you need to accomplish tasks such as:

  • Booting and first-time startup
  • Configuring, installing, and upgrading specific Cisco products
  • Establishing or restoring connectivity
  • Managing network security
  • Recovering passwords
  • Understanding commands and error messages

To use the Guided TAC Search tool for the fastest way to locate the technical content you need, please visit:

http://www.cisco.com/tac
(available to registered and non-registered users)


The ABCs of Cisco IOS Software - NEW:
Quick Learning Guide Helps Broaden Basic Understanding of Cisco IOS Software and Technologies (first in a series)

The ABCs of Cisco IOS Software introduces you to Cisco IOS® Software. This first installment provides the background information of what the Cisco IOS Software is; what it does; how it benefits small, medium, and large enterprises by enabling Internet business solutions; and how it is packaged and released.

The ABCs of Cisco IOS Software is available on line or in downloadable PDF files at:

http://www.cisco.com/go/abc/
(available to registered and non-registered users)


Networkers 2001 - The Cisco Annual User Conference:
$200 Discount If You Register by May 15

The Cisco Networkers 2001 conference brings you face to face with top Cisco networking professionals for an opportunity to learn about the hottest Cisco products and technologies, as well as to review industry trends and obtain vital networking updates.

Registration is now open for Los Angeles (June 25-29) and Chicago (July 16-20).

Features of Networkers 2001 include:

  • Over 100 technical sessions on the hottest industry topics
  • Power sessions--in-depth, full-day technical tutorials
  • The World of Solutions--a dynamic learning environment featuring key Cisco partners, the latest networking technologies and products, personalized network design clinics, and more
  • Free Cisco Career Certifications Testing for preregistered attendees

For more information and registration for Networkers 2001, please go to:

http://www.cisco.com/networkers/g1


Networking Professionals Connection:
Register for the Upcoming Online Tech Talk

Tune Up Your WAN Network - May 16, 2001, 10:00 a.m. Pacific Time

To Register:

http://www.ciscowebseminars.com/wan/N122-ZZZ-XX

To learn more about other upcoming events, please visit:

http://www.cisco.com/go/netpro


Virtual Private Network (VPN)

Sample Configuration:
Configuring IPSec - Cisco 3000 VPN Client to VPN 3000 Concentrator

http://www.cisco.com/warp/customer/471/ipsec_3000.html
(available to registered users)

http://www.cisco.com/warp/public/471/ipsec_3000.html
(available to non-registered users)


Sample Configuration:
Configuring an IPSec Tunnel - Cisco VPN 3000 Concentrator to Checkpoint 4.1 Firewall

http://www.cisco.com/warp/customer/471/cp-3000.html
(available to registered users)

http://www.cisco.com/warp/public/471/cp-3000.html
(available to non-registered users)


Sample Configuration:
Configuring an IPSec Tunnel - Cisco VPN 5000 Concentrator to Checkpoint 4.1 Firewall

http://www.cisco.com/warp/customer/471/cp-5000.html
(available to registered users)

http://www.cisco.com/warp/public/471/cp-5000.html
(available to non-registered users)


Security

Sample Configuration:
Configuring and Troubleshooting the Cisco Secure PIX® Firewall with a Single Internal Network

http://www.cisco.com/warp/customer/110/single-net.shtml
(available to registered users)

http://www.cisco.com/warp/public/110/single-net.shtml
(available to non-registered users)


Sample Configuration:
Configuring an IPSec Tunnel - Cisco Secure PIX Firewall to Checkpoint 4.1 Firewall

http://www.cisco.com/warp/customer/110/cp-p.html
(available to registered users)

http://www.cisco.com/warp/public/110/cp-p.html
(available to non-registered users)


Sample Configuration:
Configuring IPSec between a Microsoft Windows 2000 Server and a Cisco Device

http://www.cisco.com/warp/customer/707/2000.html
(available to registered users)

http://www.cisco.com/warp/public/707/2000.html
(available to non-registered users)


Field Notice:
PIX 515 Defective AC Power Supply

http://www.cisco.com/warp/customer/770/fn12953.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12953.shtml
(available to non-registered users)


IP Routing Protocols

Tech Note:
How the bgp deterministic-med Command Differs from the bgp always-compare-med Command

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

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


Tech Note:
Using the traceroute Command on Operating Systems

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

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


DSL

Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with IP Unnumbered E0, PPPoA, PPP-PAP, and Manually Configured Local LAN Devices

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

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


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with AAL5MUX IP Routing, Multiple PVCs, and Terminating on a Cisco 6400 UAC-NRP

http://www.cisco.com/warp/customer/794/wicadsl_pvc_encap_6400.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_pvc_encap_6400.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC and a Cisco 6400 in RBE Mode Using RFC1483 Bridging

http://www.cisco.com/warp/customer/794/wicadsl_6400rbe_1.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_6400rbe_1.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with IP Unnumbered E0, DHCP, PPPoA, and PPP-PAP

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

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


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC Using PPPoA with CHAP and PAP

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

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


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with NAT, a DHCP Server, and Easy IP Using PPPoA (aal5mux ppp)

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

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


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC as a PPPoE Client with NAT

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

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


Sample Configuration:
Configuring IDSL on a Cisco 802/804 Router with mux-ppp, a Cisco 6160 DSLAM, Terminating on a Cisco 6400 UAC with NAT

http://www.cisco.com/warp/customer/794/802804_idsl.html
(available to registered users)

http://www.cisco.com/warp/public/794/802804_idsl.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with a Single IP Address, DHCP, PPPoA, and PPP-PAP

http://www.cisco.com/warp/customer/794/wicadsl_dhcp_1ip.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_dhcp_1ip.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC and a Cisco 6400 Configured with IRB Using RFC1483 Bridging (aal5snap)

http://www.cisco.com/warp/customer/794/wicadsl_rfc_6400irb.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_rfc_6400irb.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with RFC1483 Routing Using AAL5SNAP Protocol IP

http://www.cisco.com/warp/customer/794/wicadsl_rfc_6400_ip.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_rfc_6400_ip.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC to Support PPPoE Clients, Terminating on a Cisco 6400 UAC

http://www.cisco.com/warp/customer/794/wicadsl_pppoe_1.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_pppoe_1.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with IRB and NAT Using RFC1483 Bridging

http://www.cisco.com/warp/customer/794/wicadsl_rfc_irb_nat_1.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_rfc_irb_nat_1.html
(available to non-registered users)


Sample Configuration:
Configuring a Cisco 1700/2600/3600 ADSL WIC with RFC1483 Routing, IP, and AAL5SNAP Encapsulation

http://www.cisco.com/warp/customer/794/wicadsl_rfc_1.html
(available to registered users)

http://www.cisco.com/warp/public/794/wicadsl_rfc_1.html
(available to non-registered users)


Cable

Sample Configuration:
Cable Modem Voice Configuration Using H323v2 Static Mapping

http://www.cisco.com/warp/customer/109/cm_voice_static.html
(available to registered users)

http://www.cisco.com/warp/public/109/cm_voice_static.html
(available to non-registered users)


Sample Configuration:
Cable Modem Voice Configuration Using H323v2 Dynamic Mapping with Gatekeeper

http://www.cisco.com/warp/customer/109/cm_voice_dynamic_gk.html
(available to registered users)

http://www.cisco.com/warp/public/109/cm_voice_dynamic_gk.html
(available to non-registered users)


Sample Configuration:
GRE Tunnel over Cable Sample Configuration and Verification

http://www.cisco.com/warp/customer/109/gre_tunnel_over_cable.html
(available to registered users)

http://www.cisco.com/warp/public/109/gre_tunnel_over_cable.html
(available to non-registered users)


Access-Dial

Sample Configuration:
DDR Backup using BRIs and the backup interface Command

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

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


Tech Note:
Using the show isdn status Command for BRI Troubleshooting

http://www.cisco.com/warp/customer/129/bri_sh_isdn_stat.html
(available to registered users)

http://www.cisco.com/warp/public/129/bri_sh_isdn_stat.html
(available to non-registered users)


Tech Note:
Troubleshooting ISDN BRI Layer 1

http://www.cisco.com/warp/customer/129/bri-layer1.html
(available to registered users)

http://www.cisco.com/warp/public/129/bri-layer1.html
(available to non-registered users)


Tech Note:
Troubleshooting BRI Layer 2

http://www.cisco.com/warp/customer/129/bri-layer2.html
(available to registered users)

http://www.cisco.com/warp/public/129/bri-layer2.html
(available to non-registered users)


Tech Note:
Troubleshooting ISDN BRI SPIDs

http://www.cisco.com/warp/customer/129/bri_invalid_spid.html
(available to registered users)

http://www.cisco.com/warp/public/129/bri_invalid_spid.html
(available to non-registered users)


Tech Note:
Configuring a Comm/Terminal Server for Sun Console Access

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

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


Tech Note:
The cisco-nas@external.cisco.com Alias

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

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


LAN

Sample Configuration:
802.1q Trunking between Catalyst® Switches Running the Cat OS and Native Cisco IOS

http://www.cisco.com/warp/customer/473/67.html
(available to registered users)

http://www.cisco.com/warp/public/473/67.html
(available to non-registered users)


Sample Configuration:
EtherChannel® Between Catalyst Switches Running Cat OS

http://www.cisco.com/warp/customer/473/68.html
(available to registered users)

http://www.cisco.com/warp/public/473/68.html
(available to non-registered users)


Sample Configuration:
ISL Trunking between Catalyst Switches Running the Cat OS and Native Cisco IOS Software

http://www.cisco.com/warp/customer/473/66.html
(available to registered users)

http://www.cisco.com/warp/public/473/66.html
(available to non-registered users)


Sample Configuration:
dot1q Trunking between Catalyst Switches Running the Cat OS

http://www.cisco.com/warp/customer/473/70.html
(available to registered users)

http://www.cisco.com/warp/public/473/70.html
(available to non-registered users)


Sample Configuration:
ISL Trunking between Catalyst Switches Running the Cat OS

http://www.cisco.com/warp/customer/473/69.html
(available to registered users)

http://www.cisco.com/warp/public/473/69.html
(available to non-registered users)


Sample Configuration:
EtherChannel Between Catalyst Switches Running Cat OS and Native Cisco IOS Software

http://www.cisco.com/warp/customer/473/71.html
(available to registered users)

http://www.cisco.com/warp/public/473/71.html
(available to non-registered users)


Tech Note:
Understanding and Troubleshooting HSRP Problems in Catalyst Switch Networks

http://www.cisco.com/warp/customer/473/62.shtml
(available to registered users)

http://www.cisco.com/warp/public/473/62.shtml
(available to non-registered users)


Tech Note:
Spanning-Tree PortFast BPDU Guard Enhancement

http://www.cisco.com/warp/customer/473/65.html
(available to registered users)

http://www.cisco.com/warp/public/473/65.html
(available to non-registered users)


Tech Note:
Configuring TACACS+ on Catalyst 2900 XL/3500 XL Switches

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

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


Tech Note:
Configuring TACACS+, RADIUS, and Kerberos on Catalyst® Switches

http://www.cisco.com/warp/customer/480/72.shtml
(available to registered users)

http://www.cisco.com/warp/public/480/72.shtml
(available to non-registered users)


Field Notice:
WS-X4013 Hangs during Upgrade from Cat OS Release 5.4(2)

http://www.cisco.com/warp/customer/770/fn13134.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13134.shtml
(available to non-registered users)


Field Notice:
Cisco 3500 XL LEDs Flash Red instead of Amber

http://www.cisco.com/warp/customer/770/fn13063.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13063.shtml
(available to non-registered users)


Field Notice:
Performance Issue with Intel Pro/1000T NICs Connecting to Catalyst 3500 XL/2900 XL with WS-G5482 1000BaseT Copper GBIC

http://www.cisco.com/warp/customer/770/fn13136.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13136.shtml
(available to non-registered users)


Field Notice:
FastHub 400M Intermittently Loses PING (ICMP Reply)

http://www.cisco.com/warp/customer/770/fn13110.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13110.shtml
(available to non-registered users)


Router Issues

Tech Note:
Understanding the ping and traceroute Commands

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

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


Tech Note:
Increase Router Stability by Using 128 MB of System Memory with ISM or ISA

http://www.cisco.com/warp/customer/112/ism_isa.html
(available to registered users)

http://www.cisco.com/warp/public/112/ism_isa.html
(available to non-registered users)


Field Notice:
VIP4-80 and VIP4-50 CYASIC Errors

http://www.cisco.com/warp/customer/770/fn13088.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13088.shtml
(available to non-registered users)


Field Notice:
New Minimum Cisco IOS Version Required on VIP4-50 Cards

http://www.cisco.com/warp/customer/770/fn13111.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13111.shtml
(available to non-registered users)


WAN Technologies

Sample Configuration:
Configuring Frame Relay Traffic Shaping

http://www.cisco.com/warp/customer/125/framerelay_ts_config.html
(available to registered users)

http://www.cisco.com/warp/public/125/framerelay_ts_config.html
(available to non-registered users)


Sample Configuration:
MPPC Compression on Access Servers

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

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


Tech Note:
show Commands for Frame Relay Traffic Shaping

http://www.cisco.com/warp/customer/125/framerelay_ts_cmd.html
(available to registered users)

http://www.cisco.com/warp/public/125/framerelay_ts_cmd.html
(available to non-registered users)


Tech Note:
Frame Relay Traffic Shaping Flowchart

http://www.cisco.com/warp/customer/125/frts_fchart.html
(available to registered users)

http://www.cisco.com/warp/public/125/frts_fchart.html
(available to non-registered users)


Tech Note:
Frame Relay Traffic Shaping - Token Bucket Flowchart

http://www.cisco.com/warp/customer/125/token_fchart.html
(available to registered users)

http://www.cisco.com/warp/public/125/token_fchart.html
(available to non-registered users)


Tech Note:
Using the show compress Command with the Hardware Compression Module

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

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


WAN Switching

Field Notice:
BSC and Required R1.3 Software Update

http://www.cisco.com/warp/customer/770/fn13120.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13120.shtml
(available to non-registered users)


Field Notice:
Lines or Trunks in Last Cisco IGX(TM) 8400 Slot Do Not Report Statistics

http://www.cisco.com/warp/customer/770/fn12891.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn12891.shtml
(available to non-registered users)


Voice and Telephony

Tech Note:
Configuring the WS-X6608-T1/E1 Blade with Cisco CallManager

http://www.cisco.com/warp/customer/788/AVVID/ws_x6608_t1e1.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/ws_x6608_t1e1.html
(available to non-registered users)


Field Notice:
Dynamic Configuration of SS7 Link State Is Not Checkpointed

http://www.cisco.com/warp/customer/770/fn13149.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13149.shtml
(available to non-registered users)


Sample Configuration:
Using IVR to Give Basic Direct Inward Dial Capability for Cisco AVVID

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

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


Sample Configuration:
Configuring H323 Gateway Dial Peers for Cisco CallManager 3.0 Server Redundancy

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

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


Tech Note:
Using the 79xx Status Information for Troubleshooting

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

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


Tech Note:
Upgrading a Cisco CallManager Cluster

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

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


Tech Note:
Solutions to Common Message Waiting Indicator Problems with uOne

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

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


Tech Note:
How to Convert a Cisco 7960 Call Manager Phone to a SIP Phone

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

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


Tech Note:
Voice Hardware: Cisco 542 and 549 Digital Signal Processors (DSPs)

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

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


Tech Note:
VoIP - Understanding Codecs: Complexity, Support, MOS, and Negotiation

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

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


Tech Note:
Echo Troubleshooting with a Catalyst® 6608 T1/E1 Blade

http://www.cisco.com/warp/customer/788/AVVID/echo_6608_t1.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/echo_6608_t1.html
(available to non-registered users)


Tech Note:
Adding Supplementary Services to 7910 with Feature Keys

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

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


Tech Note:
Configuring VoIP Fax Relay Using Cisco CallManager and a Voice Gateway

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

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


Tech Note:
Installing and Configuring Cisco WebAttendant for Cisco CallManager 3.0

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

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


Field Notice:
12SP+/30VIP Telephone International Power Cube Potential Safety Hazard

http://www.cisco.com/warp/customer/770/fn13042.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13042.shtml
(available to non-registered users)


ATM

Sample Configuration:
Inverse Multiplexing over ATM on Cisco 7x00 Routers and ATM Switches

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

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


Tech Note:
Selecting a System Image for ATM Switch Routers

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

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


Tech Note:
Understanding VBR-nrt Traffic Shaping on ATM Interfaces

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

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


Tech Note:
Understanding UBR+ on ATM Interfaces

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

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


Tech Note:
Troubleshooting ATM Links on the Cisco 7x00 IMA Port Adapter

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

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


Tech Note:
Understanding Traffic Shaping on Catalyst 5000 ATM Modules

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

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


Tech Note:
Troubleshooting SAR Crashes on the PA-A3

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

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


Tech Note:
Using Serial Ports to Connect to ATM with DXI Encapsulation

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

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


Tech Note:
Support for the ABR ATM Service Class

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

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


Tech Note:
Configuring, Framing, and Troubleshooting DS3 and E3 ATM Interfaces

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

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


Tech Note:
Implementing Network Management on ATM Interfaces

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

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


Tech Note:
Troubleshooting ATM IMA Links on Cisco 2600 and 3600 Routers

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

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


Tech Note:
Configuring VBR-rt PVCs on ATM Interfaces

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

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


IBM

Tech Note:
Understanding the DLSw+ Introduction of the UDP Unicast Feature

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

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


Optical Platforms

Tech Note:
Cisco ONS 15454 Optical Network System Frequently Asked Questions

http://www.cisco.com/warp/customer/127/15454_faq.html
(available to registered users)

http://www.cisco.com/warp/public/127/15454_faq.html
(available to non-registered users)


Tech Note:
Cisco Transport Manager Frequently Asked Questions

http://www.cisco.com/warp/customer/127/ctm_faq.html
(available to registered users)

http://www.cisco.com/warp/public/127/ctm_faq.html
(available to non-registered users)


Field Notice:
Three- and five-dB Attenuated Patchcords Manufactured by Diamond Prior to Week Five, 1999, Can Have Excessive Insertion Loss after Site A/C System Failure

http://www.cisco.com/warp/customer/770/fn13127.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13127.shtml
(available to non-registered users)


Field Notice:
Cisco ONS 15327 BITS Input Problems

http://www.cisco.com/warp/customer/770/fn13128.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13128.shtml
(available to non-registered users)


Field Notice:
Cisco ONS 15327 Default IP Address Incorrectly Configured

http://www.cisco.com/warp/customer/770/fn13126.shtml
(available to registered users)

http://www.cisco.com/warp/public/770/fn13126.shtml
(available to non-registered users)


Content Delivery Devices

Tech Note:
How to Configure the DistributedDirector to Serve DNS MX Records

http://www.cisco.com/warp/customer/117/DD_DNSMX.html
(available to registered users)

http://www.cisco.com/warp/public/117/DD_DNSMX.html
(available to non-registered users)


Tech Note:
Troubleshooting Content Load Balancing in LocalDirector 4.1.1

http://www.cisco.com/warp/customer/117/local_director/content_loadbalancing.html
(available to registered users)

http://www.cisco.com/warp/public/117/local_director/content_loadbalancing.html
(available to non-registered users)


Tech Note:
CDN Playback of Media Embedded in Web Pages Fails with IE 5.5

http://www.cisco.com/warp/customer/117/MSIE.html
(available to registered users)

http://www.cisco.com/warp/public/117/MSIE.html
(available to non-registered users)


Tech Note:
How to Configure a Cache Engine for Reverse-Proxy Caching Using WCCP

http://www.cisco.com/warp/customer/117/cache_engine/reverseproxyconfig.html
(available to registered users)

http://www.cisco.com/warp/public/117/cache_engine/reverseproxyconfig.html
(available to non-registered users)


Tech Note:
How to Configure a Cache Engine for Transparent Caching Using WCCP

http://www.cisco.com/warp/customer/117/cache_engine/transparentconfig.html
(available to registered users)

http://www.cisco.com/warp/public/117/cache_engine/transparentconfig.html
(available to non-registered users)


Tech Note:
How to Configure Cookie Sticky on LocalDirector 3.3.x

http://www.cisco.com/warp/customer/117/local_director/stickycookie.html
(available to registered users)

http://www.cisco.com/warp/public/117/local_director/stickycookie.html
(available to non-registered users)


Tech Note:
Cache Engine Transaction Log Analysis

http://www.cisco.com/warp/customer/117/CE_logcodes.html
(available to registered users)

http://www.cisco.com/warp/public/117/CE_logcodes.html
(available to non-registered users)


Field Notice:
Cisco Security Advisory: Cisco Content Services Switch User Account Vulnerability

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

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


Customer Contact

Tech Note:
Setting the InvokingUrl and InitSessionPage Dynamically

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

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


Tech Note:
How to Configure Heartbeat Send Interval on the ICM Logger

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

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


Tech Note:
PG - pim: VRU Attempted to Register for a Nonexistent ECC

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

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


Tech Note:
Tips on CCS Database Setup

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

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


Tech Note:
How to Add a New Customer to the ICM Alarm Tacking System

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

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


Tech Note:
How to Update ICM Node Host Files Using the sendall.bat Command

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

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


Tech Note:
Cisco Collaboration Server Admin Password Recovery

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

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


Tech Note:
What Is a Real-Time Distributor?

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

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


Tech Note:
What Does HDS Replication Process Error "Attempt to insert duplicate key row in object 't_Persistent_Variable' with unique index 'XPKPersistent_Variable'" mean?

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

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


Cisco IOS Software*

Tech Note:
Cisco IOS Software Release 12.1(5)YC

http://www.cisco.com/warp/customer/620/ios_12_1_5_yc.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_1_5_yc.shtml
(available to non-registered users)


Tech Note:
Cisco IOS Software Release 12.1(5)YF

http://www.cisco.com/warp/customer/620/ios_12_1_5_yf.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_1_5_yf.shtml
(available to non-registered users)


Tech Note:
Cisco IOS Software Release 12.1(5)YD

http://www.cisco.com/warp/customer/620/ios_12_1_5_yd.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_1_5_yd.shtml
(available to non-registered users)


Tech Note:
Cisco IOS Software Release 12.0(13)WT6(1)

http://www.cisco.com/warp/customer/620/ios_12_0_wt.shtml
(available to registered users)

http://www.cisco.com/warp/public/620/ios_12_0_wt.shtml
(available to non-registered users)


* 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 TAC Software Center Access)


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