Setting the Domain ID

Each device in the fabric must have a unique domain ID. The default domain ID is 1. If the device is not powered on until after it is connected to the fabric and the default domain ID is already in use, the domain ID for the new device is automatically reset to a unique value. If the device is connected to the fabric after it has been powered on and the default domain ID is already in use, the fabric segments.

You can use the fabricshow command on another device in the fabric to view domain IDs already assigned. Manually configure a unique domain ID using the configure command as in the following steps:

  1. Log on to the device using one of the following methods:
      • A serial console connection to the active CP blade. The active CP is indicated by an illuminated blue LED on the blade front panel.
      • A SSH session using the chassis management IP address.

    Log on to the device using admin as your password. If you have not changed the default password, use password .

  2. Perform the following steps to modify the domain ID.
    1. Disable the device by entering the switchdisable command.
    2. Enter the configure command. The command prompts display sequentially. Enter a new value or press Enter to accept each default value.
    3. Enter y after the Fabric param prompt. 
      Fabric param (yes, y, no, n): [no] y
    4. Enter a unique domain ID (such as the domain ID used by the previous device, if still available). 
      Domain: (1..239) [1] 3
    5. Complete the remaining prompts or press Ctrl+D to accept the remaining settings without completing all the prompts.
    6. Re-enable the device by entering the switchenable command.