
3 – Planning
Multiple Chassis Fabrics
Q
3.2
Multiple Chassis Fabrics
By connecting switches together you can expand the number of available ports for devices. Each switch in the fabric is identified by a unique domain ID, and the fabric will automatically resolve domain ID conflicts. Because the ports are
3.2.1
Domain ID, Principal Priority, and Domain ID Lock
The following switch configuration settings affect multiple chassis fabrics:
Domain ID
Principal priority
Domain ID lock
The domain ID is a unique number from
The domain ID lock allows (FALSE) or prevents (TRUE) the reassignment of the domain ID on that switch. Switches come from the factory with the domain ID set to 1, the domain ID lock set to FALSE, and the principal priority set to 254. Refer to the
An unresolved domain ID conflict means that the switch with the higher WWN will isolate as a separate fabric, and the
Note: Domain ID reassignment is not reflected in zoning that is defined by domain ID/port number pair or Fibre Channel address. You must reconfigure zones that are affected by domain ID reassignment. To prevent zoning definitions from becoming invalid under these conditions, lock the domain IDs using SANbox Manager or the Set Config Switch command.