Maintaining the T320 SIBs

Purpose

For optimum router performance, verify the condition of the SIBs.

Action

• Observe the status of the SIBs by checking the LEDs on the SIB faceplate. During normal operations:

  • The green OK LED on the SIB faceplate is lit.
  • The yellow FAIL LED on the SIB faceplate is not lit.
• To check the status of the SIBs using the CLI, issue the show chassis environment sib command. The output is similar to the following:
  user@host> show chassis environment sib

  SIB 0 status:
    State                           Spare
    Temperature                  45 degrees C / 113 degrees F
    Power:
      GROUND                      0 mV
      1.8 V                    1794 mV
      2.5 V                    2446 mV
      3.3 V                    3291 mV
      1.8 V bias               1780 mV
      3.3 V bias               3284 mV
      5.0 V bias               5003 mV
      8.0 V bias               6910 mV
  SIB 1 status:
    State                           Online
    Temperature                  45 degrees C / 113 degrees F
    Power:
      GROUND                      0 mV
      1.8 V                    1802 mV
      2.5 V                    2461 mV
      3.3 V                    3294 mV
      1.8 V bias               1782 mV
      3.3 V bias               3294 mV
      5.0 V bias               5013 mV
      8.0 V bias               7057 mV
  SIB 2 status:
    State                           Online
    Temperature                  47 degrees C / 116 degrees F
    Power:
      GROUND                      0 mV
      1.8 V                    1794 mV
      2.5 V                    2461 mV
      3.3 V                    3301 mV
      1.8 V bias               1785 mV
      3.3 V bias               3296 mV
      5.0 V bias               4998 mV
      8.0 V bias               7050 mV

For more information about using the CLI, see the Junos OS System Basics and Services Command Reference .