Cisco Cisco Catalyst 6504-E Switch Troubleshooting Guide
Troubleshooting Hardware and Common Issues on
Catalyst 6500/6000 Series Switches Running Cisco
IOS System Software
Catalyst 6500/6000 Series Switches Running Cisco
IOS System Software
Document ID: 24053
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Troubleshoot Error Messages in the Syslog or Console
The show diagnostic sanity Command
Supervisor Engine or Module Problems
Supervisor Engine LED in Red/Amber or Status Indicates faulty
Switch is in Continuous Booting Loop, in ROMmon mode, or Missing the System Image
Standby Supervisor Engine Module is Not Online or Status Indicates Unknown
Show Module Output Gives "not applicable" for SPA Module
Standby Supervisor Engine Reloads Unexpectedly
Even After You Remove the Modules, the show run Command Still Shows Information About the
Removed Module Interfaces
Switch Has Reset/Rebooted on Its Own
DFC−Equipped Module Has Reset on Its Own
Troubleshoot a Module That Does Not Come Online or Indicates Faulty or Other Status
Inband Communication Failure
Prerequisites
Requirements
Components Used
Conventions
Troubleshoot Error Messages in the Syslog or Console
The show diagnostic sanity Command
Supervisor Engine or Module Problems
Supervisor Engine LED in Red/Amber or Status Indicates faulty
Switch is in Continuous Booting Loop, in ROMmon mode, or Missing the System Image
Standby Supervisor Engine Module is Not Online or Status Indicates Unknown
Show Module Output Gives "not applicable" for SPA Module
Standby Supervisor Engine Reloads Unexpectedly
Even After You Remove the Modules, the show run Command Still Shows Information About the
Removed Module Interfaces
Switch Has Reset/Rebooted on Its Own
DFC−Equipped Module Has Reset on Its Own
Troubleshoot a Module That Does Not Come Online or Indicates Faulty or Other Status
Inband Communication Failure
Error "System returned to ROM by power−on (SP by abort)"
Error: NVRAM: nv−>magic != NVMAGIC, invalid nvram
Error: Switching Bus FIFO counter stuck
Error: Counter exceeds threshold, system operation continue
Error: No more SWIDB can be allocated
SYSTEM INIT: INSUFFICIENT MEMORY TO BOOT THE IMAGE!
Troubleshoot CatOS to Cisco IOS Software or Cisco IOS Software to CatOS Conversion
Problem when User Attempts to Access the NVRAM After Cisco IOS to CatOS Conversion
Unable to Boot with Cisco IOS Software when User Converts from CatOS to Cisco IOS
Interface/Module Connectivity Problems
Connectivity Problem or Packet Loss with WS−X6548−GE−TX and WS−X6148−GE−TX Modules used
in a Server Farm
Workstation Is Unable to Log In to Network During Startup/Unable to Obtain DHCP Address
Troubleshoot NIC Compatibility Issues
Interface Is in errdisable Status
Troubleshoot Interface Errors
You Receive %PM_SCP−SP−3−GBIC_BAD: GBIC integrity check on port x failed: bad key Error
Messages
You Get COIL Error Messages on WS−X6x48 Module Interfaces
Troubleshoot WS−X6x48 Module Connectivity Problems
Troubleshoot STP Issues
Unable to Use Telnet Command to Connect to Switch
Unable to Console the Standby Unit using Radius Authentication
Error: NVRAM: nv−>magic != NVMAGIC, invalid nvram
Error: Switching Bus FIFO counter stuck
Error: Counter exceeds threshold, system operation continue
Error: No more SWIDB can be allocated
SYSTEM INIT: INSUFFICIENT MEMORY TO BOOT THE IMAGE!
Troubleshoot CatOS to Cisco IOS Software or Cisco IOS Software to CatOS Conversion
Problem when User Attempts to Access the NVRAM After Cisco IOS to CatOS Conversion
Unable to Boot with Cisco IOS Software when User Converts from CatOS to Cisco IOS
Interface/Module Connectivity Problems
Connectivity Problem or Packet Loss with WS−X6548−GE−TX and WS−X6148−GE−TX Modules used
in a Server Farm
Workstation Is Unable to Log In to Network During Startup/Unable to Obtain DHCP Address
Troubleshoot NIC Compatibility Issues
Interface Is in errdisable Status
Troubleshoot Interface Errors
You Receive %PM_SCP−SP−3−GBIC_BAD: GBIC integrity check on port x failed: bad key Error
Messages
You Get COIL Error Messages on WS−X6x48 Module Interfaces
Troubleshoot WS−X6x48 Module Connectivity Problems
Troubleshoot STP Issues
Unable to Use Telnet Command to Connect to Switch
Unable to Console the Standby Unit using Radius Authentication