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Cisco Catalyst 5000 Series Switches

Troubleshooting TechNotes

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Best Practices
- Best Practices for Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Running CatOS Configuration and Management
  29/Nov/2007
Configuration
- Understanding and Configuring the Unidirectional Link Detection Protocol Feature
  09/Jul/2007
Connecting Terminal/Modem to Console
- Connecting a Modem to the Console Port on Catalyst Switches
  27/Jun/2007
- Connecting a Terminal to the Console Port on Catalyst Switches
  16/Nov/2007
Connectors and Cabling
- Catalyst Switch Cable, Connector, and AC Power Cord Guide
  11/Jul/2007
DHCP
- Understanding and Troubleshooting DHCP in Catalyst Switch or Enterprise Networks
  07/Aug/2008
EtherChannel
- Configure EtherChannel Between Catalyst 4500/4000, 5500/5000, and 6500/6000 Switches That Run CatOS System Software
  14/Aug/2006
- System Requirements to Implement EtherChannel on Catalyst Switches
  11/Jul/2007
- Understanding EtherChannel Load Balancing and Redundancy on Catalyst Switches
  09/Jul/2007
FAQ
- Catalyst 5000 Switch FAQ
  07/Oct/2005
- Catalyst 2926 Switch FAQ
  07/Oct/2005
- Catalyst 2900 Switch FAQ
  07/Oct/2005
General Connectivity
- Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues
  30/Aug/2005
- Unicast Flooding in Switched Campus Networks
  17/Nov/2007
- Using PortFast and Other Commands to Fix Workstation Startup Connectivity Delays
  17/Apr/2006
Hardware
- Fiber Loss Budgets
  15/Jan/2008
- Identifying Catalyst 5000 EARL Version and Other Common EARL Questions
  04/Oct/2005
- Memory/Flash Size Supported in Catalyst Switch Platforms
  20/Mar/2008
- PCMCIA Filesystem Compatibility Matrix and Filesystem Information
  10/Nov/2005
- Understanding Catalyst 2900 and Catalyst 4000 Naming Conventions
  25/Sep/2006
Hardware Troubleshooting
- Hardware Failure Checklist for Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Running CatOS
  30/Aug/2005
- Hardware Troubleshooting for Catalyst 5500/5000/2926G/2926 Series Switches
  16/Nov/2007
- Hardware Troubleshooting Index Page
  20/Oct/2006
- Preparing to Troubleshoot Hardware for Catalyst 5500/5000/2926G/2926 Series Switches
  09/Dec/2005
HSRP
- Understanding and Troubleshooting HSRP Problems in Catalyst Switch Networks
  05/Jul/2007
Inter-Vlan Routing
- Configuring InterVLAN Routing Using an Internal Router (Layer 3 Card) on Catalyst 5500/5000 and 6500/6000 Switches That Run CatOS System Software
  30/Aug/2005
- Troubleshooting the Catalyst 5000 Route Switch Module (RSM) and InterVLAN Routing
  02/Sep/2005
Management
- Configuring a Management IP Address on Catalyst 4500/4000, 5500/5000, 6500/6000, and Catalyst Fixed Configuration Switches
  15/Mar/2006
- Configuring System Information on Catalyst Switches
  13/Dec/2005
- How to Determine the Serial Number of Catalyst Switch Components
  01/Sep/2005
- Managing Catalyst Switch-Based and Workgroup Concentrator-Based FDDI Networks
  14/Nov/2005
- Managing Software Images and Working with Configuration Files on Catalyst Switches
  31/Oct/2006
- Resetting Catalyst Switches to Factory Defaults
  21/Dec/2005
Modules
- How to Upgrade Software Images on Catalyst Switch Layer 3 Modules
  04/Dec/2006
- Understanding the Naming Conventions of Catalyst 5000 and 6000 ATM Module Software
  05/Jun/2005
Multicast
- Constraining Multicast Traffic with Source and Receivers on the Same VLAN on Catalyst Switches Running Catalyst OS
  11/Jul/2007
- Multicast Catalyst Switches Support Matrix
  17/Jul/2006
- Multicast in a Campus Network: CGMP and IGMP Snooping
  09/Mar/2007
- Using RGMP: Basics and Case Study
  30/Aug/2005
Multilayer Switching(MLS)
- System Requirements to Implement MLS
  30/Aug/2005
- Troubleshooting IP Multilayer Switching
  09/Dec/2005
Recovery from Corrupted or Missing Software
- Recovering a Catalyst 5000 RSM from a Corrupted or Missing Image, Boot, or ROMmon Mode
  16/Nov/2007
- Recovering Catalyst Switches Running CatOS from Booting Failures
  08/May/2006
- ROMmon Recovery Procedure for the Cisco 7200, 7300, 7400, 7500, RSP7000, Catalyst 5500 RSM, uBR7100, uBR7200, uBR10000, and 12000 Series Routers
  30/Jan/2006
Security
- Configuring TACACS+, RADIUS, and Kerberos on Cisco Catalyst Switches
  27/Dec/2007
Spanning Tree Protocol
- Rebuilding the Multicast Entries with CGMP and Spanning Tree Topology Changes
  20/Jul/2006
- Spanning Tree PortFast BPDU Guard Enhancement
  01/Sep/2005
- Spanning Tree Protocol Root Guard Enhancement
  30/Aug/2005
- Spanning-Tree Protocol Enhancements using Loop Guard and BPDU Skew Detection Features
  22/Jan/2007
- Understanding and Configuring Backbone Fast on Catalyst Switches
  30/Aug/2005
- Understanding and Configuring the Cisco UplinkFast Feature
  18/Aug/2008
- Using PortFast and Other Commands to Fix Workstation Startup Connectivity Delays
  17/Apr/2006
- VLAN Load Balancing Between Trunks Using the Spanning-Tree Protocol Port Priority
  30/Aug/2005
Switch Port Analyzer(SPAN)
- Catalyst Switched Port Analyzer (SPAN) Configuration Example
  16/Jul/2007
Switch Port Problems
- Configuring and Troubleshooting Ethernet 10/100/1000Mb Half/Full Duplex Auto-Negotiation
  09/Jul/2007
- Recovering From errDisable Port State on the CatOS Platforms
  20/Jun/2007
- Troubleshooting Switch Port and Interface Problems
  21/Jul/2008
Token Ring
- Token Ring Switching Concepts
  07/Oct/2005
- TR-ISL Trunking Between Cisco Catalyst 5000 and 3900 Switches and Routers
  09/Sep/2005
Troubleshooting
- Common CatOS Error Messages on Catalyst 5000/5500 Series Switches
  09/Aug/2006
Troubleshooting Tools
- Bug Toolkit
- Error Message Decoder
- NetPro Forum: Network Infrastructure
- Output Interpreter
Trunking (802.1Q/ISL)
- Configuring ISL Trunking on Catalyst 5500/5000 and 6500/6000 Family Switches
  07/Dec/2007
- Trunking Between a Catalyst 5000 and a Router over FDDI
  04/Oct/2005
- Trunking Between Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Using 802.1Q Encapsulation with Cisco CatOS System Software
  26/May/2006
VLAN and VTP
- Private VLAN Catalyst Switch Support Matrix
  08/Dec/2006
- Supported Platforms for Unique MAC Address Configuration on VLAN or L3 Interfaces for Catalyst Switches
  02/Mar/2007
- Understanding and Troubleshooting the Autostate Feature in Catalyst Switches
  06/May/2005
- Understanding Issues Related to Inter-VLAN Bridging
  09/Sep/2005
- Understanding VLAN Trunk Protocol (VTP)
  30/Jul/2007
VMPS
- Troubleshooting the Catalyst VMPS Switch
  30/Aug/2005
- Common Causes of Slow IntraVLAN and InterVLAN Connectivity in Campus Switch Networks
  16/Nov/2007
- How LAN Switches Work
  01/Aug/2007
- How to Get Catalyst Switch Backplane Utilization Using SNMP
  21/May/2006
- Inter-Switch Link and IEEE 802.1Q Frame Format
  25/Aug/2006
- MS Windows Load Balancing Server: Issues with Switching and Routing
  04/Oct/2005
- Network Address Translation Catalyst Switch Support Matrix
  05/Apr/2006
- Password Recovery Procedures
  17/Jan/2007
- Problems With VLAN Trunk Protocol (VTP) Pruning Over LAN Emulation (LANE)
  01/Jan/2007
- Spanning Tree Protocol Problems and Related Design Considerations
  30/Aug/2005
- System Requirements to Implement FDDI
  04/Oct/2005
- System Requirements to Implement Gigabit Ethernet on Catalyst Switches
  20/Dec/2005
- System Requirements to Implement Trunking
  10/Aug/2006
- Troubleshooting LAN Switching Environments
  06/Oct/2005
- Troubleshooting Transparent Bridging Environments
  04/Oct/2005
- Troubleshooting VLAN Trunk Protocol (VTP)
  29/Jul/2007
- Understanding and Tuning Spanning Tree Protocol Timers
  30/Jan/2006
- Understanding EtherChannel Inconsistency Detection
  30/Aug/2005
- Understanding Spanning-Tree Protocol Topology Changes
  10/Oct/2005