Contents
v
Catalyst 4500 E-Series Switches Installation Guide
OL-13972-02
Required Tools and Components
4-20
Installing the Remote Power-Cycling Control Wires
4-20
Installing the Ferrite Bead
4-21
C H A P T E R
5
Troubleshooting
5-1
System Boot Verification
5-2
Using LEDs to Identify Startup Problems
5-3
System Messages
5-4
Troubleshooting with Software
5-4
Troubleshooting the Power Supply
5-4
System Messages and Power Problems
5-5
Useful CLI Commands
5-6
Power Supply Mixing
5-6
Troubleshooting the Fan Assembly
5-6
System Messages and Fan Problems
5-7
Useful CLI Commands
5-7
Troubleshooting Backplane Modules
5-7
Troubleshooting Switching Modules
5-8
System Messages and Switching Modules
5-9
Useful CLI Commands
5-9
Troubleshooting Supervisor Engines
5-10
System Messages and Supervisor Engines
5-10
Useful CLI Commands
5-12
Standby Supervisor Engine Problems
5-12
Switch Self-reset
5-13
Supervisor Ports Do Not Function
5-13
Packet Loss
5-13
Some Problems and Solutions
5-14
Module Not Online
5-14
Interface Problems
5-15
Workstation Is Unable to Log In to the Network
5-15
NIC Compatibility Issues
5-16
Interface Is in Errdisable
5-16
Faulty Supervisor Engine
5-16
Boot Problems
5-17
Contacting the Cisco Technical Assistance Center
5-18