Displaying SIB Redundancy Information

Action

To display the redundant SIB state, use the following CLI command:

user@host> show chassis sib

Sample Output

t320@host> show chassis sibs

Slot  State               Uptime

 0    Spare           

 1    Online             2 days, 7 hours, 10 minutes, 13 seconds

 2    Online             2 days, 7 hours, 10 minutes, 13 seconds

t640@host> show chassis sibs

Slot  State               Uptime

 0    Spare

 1    Online             4 hours, 5 minutes, 47 seconds

 2    Online             4 hours, 5 minutes, 42 seconds

 3    Online             4 hours, 5 minutes, 37 seconds

 4    Online             4 hours, 5 minutes, 33 seconds 

What it Means

The command output is for a T320 router and a T640 routing node. On the T320 router, SIB1 and SIB2 are active (Online), while SIB0 is backup (Spare). On the T640 routing node, SIB1, SIB2, SIB3, and SIB4 are active, while SIB0 is the backup. The possible states are Spare, Online, Offline, or Empty. The command output also displays how long each SIB has been online in hours, minutes, and seconds.

Alternative Action

You can also view redundant SIB status by using the following CLI command:

user@host> show chassis environment sib 

user@host> show chassis environment sib

SIB 0 status:

  State                           Spare

  Temperature                  44 degrees C / 111 degrees F

  Power:

    GROUND                      0 mV

    1.8 V                    1807 mV

    2.5 V                    2478 mV

    3.3 V                    3308 mV

    1.8 V bias               1797 mV

    3.3 V bias               3284 mV

    5.0 V bias               5018 mV

    8.0 V bias               7440 mV

SIB 1 status:

  State                           Online

  Temperature                  50 degrees C / 122 degrees F

  Power:

    GROUND                      0 mV

    1.8 V                    1814 mV

    2.5 V                    2485 mV

1.8 V bias               1794 mV 

    3.3 V bias               3313 mV

    5.0 V bias               5028 mV

    8.0 V bias               7553 mV

SIB 2 status:

  [...Output truncated...]

SIB 3 status:

  [...Output truncated...]

SIB 4 status:       

  [...Output truncated...]

The command output displays the SIB slot, status, and the temperature of the air flowing past the SPP card and the power source information. Notice that SIB0 status is displayed as Spare, or backup.

You can display the environmental status of a particular SIB with the following CLI command:

user@host> show chassis environment sib slot