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Cisco Catalyst 4500 Series Switches

Troubleshooting TechNotes

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Architecture
- Understanding and Troubleshooting Astro/Lemans/NiceR Timeouts on Catalyst 4000/4500 Series Switches
  17/Nov/2007
Best Practices
- Best Practices for Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Running CatOS Configuration and Management
  29/Nov/2007
- Best Practices for Catalyst 4500/4000 and 6500/6000 Series Switches Running Cisco IOS Software
  03/Sep/2006
Configuration
- Configuring System Information on Catalyst Switches
  13/Dec/2005
- Understanding and Configuring the Unidirectional Link Detection Protocol Feature
  09/Jul/2007
- Understanding and Troubleshooting the Autostate Feature in Catalyst Switches
  06/May/2005
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
CPU Utilization
- CPU Utilization on Catalyst 4500/4000, 2948G, 2980G, and 4912G Switches That Run CatOS Software
  30/Aug/2005
DHCP
- Understanding and Troubleshooting DHCP in Catalyst Switch or Enterprise Networks
  17/Nov/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
General Connectivity
- Unicast Flooding in Switched Campus Networks
  17/Nov/2007
Hardware
- Hardware Failure Checklist for Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Running CatOS
  30/Aug/2005
- Memory/Flash Size Supported in Catalyst Switch Platforms
  20/Mar/2008
- Troubleshooting Hardware and Related Issues on Catalyst 4500/4000 Switches Running Cisco IOS Software
  05/Jun/2006
Jumbo/Giant Frame
- Troubleshooting Baby Giant/Jumbo Frames in Catalyst 4000/4500 with Supervisor III/IV
  24/Mar/2005
Management
- Configuring a Management IP Address on Catalyst 4500/4000, 5500/5000, 6500/6000, and Catalyst Fixed Configuration Switches
  15/Mar/2006
- How to Determine the Serial Number of Catalyst Switch Components
  01/Sep/2005
- Resetting Catalyst Switches to Factory Defaults
  21/Dec/2005
Modules
- Configuration and Overview of the Router Module for the Catalyst 4500/4000 Family (WS-X4232-L3)
  07/Jan/2007
- How to Upgrade Software Images on Catalyst Switch Layer 3 Modules
  04/Dec/2006
- Supporting Legacy Protocols with Catalyst 4000 Supervisor III/IV
  01/Sep/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
Quality Of Service(QoS)
- QOS Policing and Marking with Catalyst 4000/4500 IOS-Based Supervisor Engines
  24/Mar/2005
- Understanding Queuing and Scheduling QoS on Catalyst 4000 Supervisor III and IV
  24/Mar/2005
Recovery from Corrupted or Missing Software
- Recovering Catalyst Switches Running CatOS from Booting Failures
  08/May/2006
Redundancy
- High Availability and Redundancy in Catalyst 4500 Series Switches
  07/Jul/2008
Security
- Configuring TACACS+, RADIUS, and Kerberos on Cisco Catalyst Switches
  27/Dec/2007
- Securing Networks with Private VLANs and VLAN Access Control Lists
  08/May/2008
Spanning Tree Protocol
- Configuring MST (802.1s)/RSTP (802.1w) on Catalyst Series Switches Running CatOS
  16/Nov/2007
- Spanning Tree PortFast BPDU Guard Enhancement
  01/Sep/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
  19/Dec/2008
Switch Port Problems
- Recovering From errDisable Port State on the CatOS Platforms
  20/Jun/2007
- Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues
  10/Dec/2008
- Troubleshooting Switch Port and Interface Problems
  17/Dec/2008
Troubleshooting
- Common CatOS Error Messages on Catalyst 4500/4000 Series Switches
  05/Feb/2007
Troubleshooting Tools
- Output Interpreter
VLAN and VTP
- Understanding Issues Related to Inter-VLAN Bridging
  09/Sep/2005
- Understanding VLAN Trunk Protocol (VTP)
  30/Jul/2007
- VLAN Load Balancing Between Trunks Using the Spanning-Tree Protocol Port Priority
  30/Aug/2005
VMPS
- Troubleshooting the Catalyst VMPS Switch
  30/Aug/2005
Web Interface
- Enabling the Catalyst Web Interface on Catalyst 4500/4000 Series Switches Running CatOS
  06/Jul/2007
- ACL and QoS TCAM Exhaustion Avoidance on Catalyst 4500 Switches
  27/Oct/2005
- Catalyst Switched Port Analyzer (SPAN) Configuration Example
  16/Jul/2007
- Cisco AVVID Gateway Support for Fax Relay and Fax Pass-Through
  08/Jan/2007
- Cisco Small Form-Factor Pluggable (SFP) Transceiver Modules Maintenance and Troubleshooting
  29/Aug/2008
- Common Causes of Slow IntraVLAN and InterVLAN Connectivity in Campus Switch Networks
  16/Nov/2007
- Common Issues with Catalyst 4500 Switches that Run Cisco IOS Software
  13/Apr/2007
- Configuring and Troubleshooting Ethernet 10/100/1000Mb Half/Full Duplex Auto-Negotiation
  09/Jul/2007
- Configuring Secure Shell on Routers and Switches Running Cisco IOS
  28/Jun/2007
- Errdisable Port State Recovery on the Cisco IOS Platforms
  05/Jul/2007
- High CPU Utilization on Cisco IOS Software-Based Catalyst 4500 Switches
  20/Mar/2008
- 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
- Managing Software Images and Working with Configuration Files on Catalyst Switches
  31/Oct/2006
- Managing vlan.dat in Cisco Catalyst Switches Running Cisco IOS Software New!
  19/Dec/2008
- MS Windows Load Balancing Server: Issues with Switching and Routing
  04/Oct/2005
- Multicast Does Not Work in the Same VLAN in Catalyst Switches
  16/Nov/2006
- Multicast in a Campus Network: CGMP and IGMP Snooping
  17/Dec/2008
- Network Address Translation Catalyst Switch Support Matrix
  05/Apr/2006
- Password Recovery Procedures
  17/Jan/2007
- Private VLAN Catalyst Switch Support Matrix
  08/Dec/2006
- Problems With VLAN Trunk Protocol (VTP) Pruning Over LAN Emulation (LANE)
  01/Jan/2007
- Rebuilding the Multicast Entries with CGMP and Spanning Tree Topology Changes
  20/Jul/2006
- Spanning Tree Protocol Problems and Related Design Considerations
  30/Aug/2005
- Spanning Tree Protocol Root Guard Enhancement
  30/Aug/2005
- Supported Platforms for Unique MAC Address Configuration on VLAN or L3 Interfaces for Catalyst Switches
  02/Mar/2007
- System Requirements to Implement Gigabit Ethernet on Catalyst Switches
  20/Dec/2005
- System Requirements to Implement Switch Clustering Technology
  10/Jul/2006
- System Requirements to Implement Trunking
  10/Aug/2006
- Troubleshooting LAN Switching Environments
  06/Oct/2005
- Troubleshooting Spanning Tree PVID- and Type-Inconsistencies
  01/Sep/2005
- Troubleshooting STP on Catalyst Switches Running Cisco IOS System Software
  01/Sep/2005
- Troubleshooting Transparent Bridging Environments
  04/Oct/2005
- Troubleshooting VLAN Trunk Protocol (VTP)
  29/Jul/2007
- Trunking Between Catalyst 4500/4000, 5500/5000, and 6500/6000 Series Switches Using 802.1Q Encapsulation with Cisco CatOS System Software
  26/May/2006
- Understanding and Tuning Spanning Tree Protocol Timers
  30/Jan/2006
- Understanding Catalyst 2900 and Catalyst 4000 Naming Conventions
  25/Sep/2006
- Understanding EtherChannel Inconsistency Detection
  30/Aug/2005
- Understanding Spanning-Tree Protocol Topology Changes
  10/Oct/2005