Step 2: Display the SIB LED Status at the Command Line

Action

To display the SIB LED status, use the following CLI command:

user@host> show chassis craft-interface

Sample Output

t640@host> show chassis craft-interface

[...Output truncated...]

SIB LEDs:

  SIB  0   1   2   3   4

--------------------------

Red    .   .   .   .   .

Green  *   *   *   *   * 

What it Means

The command output is for a T640 routing node. Asterisks (*) represent the operating state. The status colors represent the possible SIB operating states: Red (Fail) and Green (OK). All SIBs are functioning normally.