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Troubleshooting the T4000 FPCs

 

Problem:

Description:

The following LEDs indicate a problem with an FPC:

  • The red FAIL LED above the FPC on the craft interface is lit.

  • The green FAIL LED above the FPC on the craft interface is lit.

Table 1: Chassis Alarm Messages for the FPCs

Alarm Type

LCD Message

CLI Message

Alarm Condition

Solution

Red

FPC fpc-slot misconfig

FPC fpc-slot misconfig

The FPC is not supported, and will not come online.

Remove the unsupported FPC. See T4000 FPCs Supported.

Solution

To troubleshoot an FPC:

  1. Look at the display on the craft interface to check the status of the FPC and the PICs that are plugged into it.
  2. Use the show chassis fpc command to check the status of an FPC.
    user@host> show chassis fpc

    For more detailed output, add the detail option.

    user@host> show chassis fpc detail

    For detailed output for a specific FPC, specify a slot number (5), which is optional:

    user@host> show chassis fpc detail 5
  3. Verify that the FPC is properly seated in the midplane. Check that each ejector handle has been turned clockwise and is tight. Use a screwdriver to check that the screws inside the ejector handles are tight.
  4. Use the show chassis fabric fpcs command to check the status of an FPC.
    user@host> show chassis fabric fpcs
  5. Use the show chassis fabric reachability command to check the status of an FPC.
    user@host> show chassis fabric reachability
  6. Use the show chassis environment fpc command to check the status of an FPC.
    user@host> show chassis environment fpc