What's Hot

IP Routing Technical Support Documents - NEW:
New and Interactive Documents Focus on Troubleshooting

The Cisco TAC Web Site's suite of technical support documents for IP Routing issues now includes four new documents and three interactive documents, featuring embedded links to the Cisco Output Interpreter tool.

Our four new IP Routing documents include:

• "IP Fragmentation and Path Maximum Transmission Unit Discovery" -- This in-depth white paper covers how IP Fragmentation and Path Maximum Transmission Unit Discovery (PMTUD) work, and what happens when you combine PMTUD with different combinations of IP tunnels:
  http://www.cisco.com/tac/newsletter/1002_ip_fragmentation_pmtud.html
  
  
• "Troubleshooting Label Switched Path Failures in Multiprotocol Label Switching Virtual Private Networks" -- The troubleshooting steps in this scenario apply to any problem involving label bindings and the Label Forwarding Information Base (LFIB) on routers configured for Multiprotocol Label Switching (MPLS):
  http://www.cisco.com/tac/newsletter/1002_troubleshoot_mpls_vpn.html
  
  
• "Troubleshooting Cisco Express Forwarding Routing Loops" -- What to do when a valid cached Cisco Express Forwarding adjacency points out the incorrect interface:
  http://www.cisco.com/tac/newsletter/1002_trouble_cef.html
  
  
• "Configuring Single Router Mode Redundancy and Border Gateway Protocol (BGP) on a Catalyst 6000 Series Multilayer Switch Feature Card (MSFC):"
  http://www.cisco.com/tac/newsletter/1002_bgp_cat_6500_msfc.html
  

In addition, the following three interactive documents combine the strength of step-by-step troubleshooting guidance with the Output Interpreter's customized analysis of your Cisco device. You can read about troubleshooting each protocol, then paste your own "show" command output into the Output Interpreter to see precisely how the documentation relates to your situation:

• "Troubleshooting EIGRP" -- interactive:
  http://www.cisco.com/tac/newsletter/1002_troubleshooting_eigrp.html
  
  
• "Troubleshooting OSPF" -- interactive:
  http://www.cisco.com/tac/newsletter/1002_troubleshooting_ospf.html
  
  
• "Troubleshooting BGP" -- interactive:
  http://www.cisco.com/tac/newsletter/1002_troubleshooting_bgp.html
  
  

Navigate to these and many more IP Routing documents from the Cisco TAC Web Site's "Technology Support" page:

http://www.cisco.com/tac/newsletter/1002_technology_support.html

Router Software Upgrade Resources - UPDATE:
Reference the Same Tools and Documents Cisco TAC Engineers Use

The Cisco TAC Web Site provides you with many of the same technical support tools and documents that Cisco TAC engineers use, including several resources that focus on software upgrades for Cisco routers.

Here are some of the Cisco software upgrade resources at your disposal:

• "How to Choose a Cisco IOS® Software Release" -- This document discusses the factors to consider when selecting a software release, including hardware support, feature support, and memory requirements:
  http://www.cisco.com/tac/newsletter/1002_ios_software_release.html
  
  
• "Common Problems in Installing Images Using TFTP or an RCP Server" -- Covers common issues with the default gateway, IP addresses, software transfer, and verification:
  http://www.cisco.com/tac/newsletter/1002_images_tftp_rcp.html
  
  
• "PCMCIA Filesystem Compatibility Matrix and Filesystem Information" -- Helps you determine the type of Flash memory in your router and the command syntax required for that type:
  http://www.cisco.com/tac/newsletter/1002_pcmcia_matrix.html
  
  
• "Software Installation and Upgrade Procedures for the Cisco RP & RSP7000, 7100, 7200, 7300, 7400, 7500, 7600, 10000, 12000, uBR7100, uBR7200, and uBR10000:"
  http://www.cisco.com/tac/newsletter/1002_sw_upgrade_hi_end_routers.html
  
  
• "Software Installation and Upgrade Procedure for the Cisco 1600, 2000, 2500, 3000, AS5100, and AS5200:"
  http://www.cisco.com/tac/newsletter/1002_sw_upgrade_proc_flash.html
  
  
• "Software Installation and Upgrade Procedure for the Cisco 1000, 1400, 1600-R, 1700, 2600, 3600, 4000, 4500, 4700, AS5300, and the MC3810:"
  http://www.cisco.com/tac/newsletter/1002_sw_upgrade_proc_ram.html
  
  
• Cisco Stack Decoder tool -- After an unexpected router reload, paste the output of the "show stacks" command into the tool. The Stack Decoder will list software bugs that may have caused the reload. The bug information may indicate software versions in which the bugs are fixed:
  http://www.cisco.com/tac/newsletter/1002_stack_decoder.html
  (available to registered users only)

Take all your software upgrade questions to the Cisco TAC Web Site, just like Cisco TAC engineers do, and get the information you need fast:

http://www.cisco.com/tac/newsletter/1002_cisco_tac_web_site.html

Online Technical Training Opportunities

Cisco TAC Web Seminars - UPDATE:
Learn to Use the Redesigned Cisco TAC Web Site

The online Cisco TAC Web Seminars offer the best way to learn about using the redesigned Cisco TAC Web Site. These free seminars, available live or on-demand, show you how to access technical support documents and tools, open and manage cases online, and find technical training.

Here is the schedule of live seminars in October:

		October 16:
			"Using the Cisco TAC Web Site for Online Support"
			(Asia-Pacific business hours)
			"Using the Cisco TAC Web Site for LAN Switching Issues"
			(EMEA business hours)
		October 17:
			"Using the Cisco TAC Web Site for Voice, Telephony, and Messaging Issues"
			(EMEA and Americas business hours)
		October 22:
			"Using the Cisco TAC Web Site for Online Support"
			(Americas business hours)

Spaces are limited for the live seminars, so reserve your place today at the Cisco TAC Web Seminars site:

http://www.cisco.com/tac/newsletter/1002_tac_web_sem.html
(available to all users, but separate registration on this standalone site is required)

Networking Professionals Connection - UPDATE:
Online Forum Adds New Ratings Program for Postings

Networking Professionals Connection is an interactive Web site where you can share questions, suggestions, and information about Cisco networking products and technologies with your peers.

We recently implemented a new ratings program on the site, which allows you to apply ratings to message board postings that you feel deserve recognition. For more information about the ratings system, please visit:

http://www.cisco.com/tac/newsletter/1002_net_pro_con_ratings.html

Some of our future and archived TechTalks include:

		"Optical:" October 16, 2002, 10 a.m. Pacific Time
		"Any Transport over MPLS:" October 23, 2002, 10 a.m. Pacific Time
		"Intelligent Switching:" October 30, 2002, 10 a.m. Pacific Time
		"Integrated Network Security" (archive)
		Learn how to protect your network by integrating advanced security
		features into switches and routers.
		"Systematically Deploying Quality of Service (QoS)" (archive)
		Covers new classification, scheduling, provisioning, and
		management tools that simplify QoS deployment.

Visit the Networking Professionals Connection to attend these or other upcoming events:

http://www.cisco.com/tac/newsletter/1002_net_pro_con.html

CCIE® Central

CCIE Lab Equipment Change - UPDATE:
Cisco Catalyst 3550 Switches to Replace Cisco Catalyst 5000 Switches

You may have heard by now that all CCIE® labs will replace their Catalyst 5000 switches with Catalyst 3550 switches. This equipment change will take place between September 1 and November 4, 2002.

Check out the CCIE What's New page for more details about the equipment change:

http://www.cisco.com/tac/newsletter/1002_ccie_whats_new.html

http://www.cisco.com/tac/newsletter/1002_ccie.html

Access

Configuration Example:
Configuring and Troubleshooting E1 R2 Signaling for Data Calls

http://www.cisco.com/warp/customer/471/e1_r2_config_data.html
(available to registered users)

http://www.cisco.com/warp/public/471/e1_r2_config_data.html
(available to nonregistered users)

Tech Note:
Troubleshooting BRI Call Failures over Long Distance Carriers

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

http://www.cisco.com/warp/public/471/long_distance_failure.html
(available to nonregistered users)

Voice, Telephony, and Messaging

Configuration Example:
Cisco Personal Assistant and Cisco Unity(TM) Configuration Issues

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

http://www.cisco.com/warp/public/788/AVVID/PA-Unity.html
(available to nonregistered users)

Configuration Example:
How To Configure the Cisco Unity Failover Wizard

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

http://www.cisco.com/warp/public/788/AVVID/unity_failover_config.html
(available to nonregistered users)

Configuration Example:
Configuring and Troubleshooting the Cisco ATA 186 with Fax

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

http://www.cisco.com/warp/public/788/ata-fax.html
(available to nonregistered users)

Configuration Example:
Cisco Unity ViewMail for Outlook Audio Volume Settings

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

http://www.cisco.com/warp/public/788/VMOAudioSettings.html
(available to nonregistered users)

Configuration Example:
Configuring TDM Switching of Voice and Data Calls on Cisco AS5400 Gateways

http://www.cisco.com/warp/customer/788/signalling/tdm-switching.html
(available to registered users)

http://www.cisco.com/warp/public/788/signalling/tdm-switching.html
(available to nonregistered users)

Tech Note:
Redirect Server(s) Provide Subscriber Access to ActiveAssistant

http://www.cisco.com/warp/customer/788/AVVID/unity3_redirect.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/unity3_redirect.html
(available to nonregistered users)

Tech Note:
Troubleshooting Voice Connection Trunks

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

http://www.cisco.com/warp/public/788/voip/troubleshoot_voice_trunks.html
(available to nonregistered users)

Tech Note:
Designing and Deploying Multilink PPP over Frame Relay and ATM

http://www.cisco.com/warp/customer/788/voice-qos/designing-mlp-over-fr-atm.html
(available to registered users)

http://www.cisco.com/warp/public/788/voice-qos/designing-mlp-over-fr-atm.html
(available to nonregistered users)

Problem and Solution:
Cisco Unity 3.x and 2.x Return Receipt Is Showing Up in Voice Message Box

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

http://www.cisco.com/warp/public/788/AVVID/receipt_messagebox.html
(available to nonregistered users)

Problem and Solution:
Moving Exchange Message Stores and Transaction Logs to an Alternate Drive

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

http://www.cisco.com/warp/public/788/AVVID/moving_exchange_stores.html
(available to nonregistered users)

Problem and Solution:
Third Party H323 Calls Fail with Cisco IOS® Software Releases Later than 12.2(8)T

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

http://www.cisco.com/warp/public/788/voip/call_fail.html
(available to nonregistered users)

Problem and Solution:
Moving Domain Controller or Global Catalog Server

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

http://www.cisco.com/warp/public/788/AVVID/domain_controller_global_server.html
(available to nonregistered users)

Problem and Solution:
Configuring and Troubleshooting Dual NICs for Cisco Unity Software

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

http://www.cisco.com/warp/public/788/AVVID/Dual_NICs.html
(available to nonregistered users)

Problem and Solution:
Troubleshooting Cisco Unity 16-Second Delay

http://www.cisco.com/warp/customer/788/AVVID/16sec_delay_unity.html
(available to registered users)

http://www.cisco.com/warp/public/788/AVVID/16sec_delay_unity.html
(available to nonregistered users)

WAN Switches

Tech Note:
Appendix G: Additional Information on "runrev" Interval

http://www.cisco.com/warp/customer/74/Appendix-G.htm
(available to registered users)

http://www.cisco.com/warp/public/74/Appendix-G.htm
(available to nonregistered users)

How To:
How to Upgrade UXM Bootcode

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

http://www.cisco.com/warp/public/74/bootcode.html
(available to nonregistered users)

Security Advisory:
Cisco CSS 11000 Series Content Services Switch Web Management Vulnerability

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

http://www.cisco.com/warp/public/707/arrowpoint-webmgmt-vuln-pub.shtml
(available to nonregistered users)

TAC Newsletter Archive

To view past issues of the Cisco TAC Newsletter, please visit:

http://www.cisco.com/tac/newsletter

About This Newsletter