MDS running priority

[david-flores]

I have an MDS9124 that is connected to an MDS 9124e connected into an HP blade chassis.  I notice then when looking at the fc domain status, the 9124e shows as running at priority 2, even though that priority is not configured  in the running config.  The running priority on the MDS 9124 is 128, which I believe is the default running priority.  Can anybody let me know why the 9124e is running at priority 2?

[dakester]

Hi David,

It's the T1l FC-SW standard.

FIBRE CHANNEL SWITCH FABRIC - 5 (FC-SW-5)
http://www.t11.org/ftp/t11/pub/fc/sw-5/09-290v1.pdf

7.4.2 Domain_ID Distribution by the Principal Switch
The Principal Switch shall conduct Domain_ID distribution as indicated in figure 17 and as described
below.
State D0: Setup. At the completion of Principal Switch Selection, the Principal Switch shall assume
the role of Domain Address Manager, and perform the following setup actions:
a) The Principal Switch shall set its Switch_Priority value to 02h, if the current value of its
Switch_Priority is greater than or equal to 02h.

Regards,

David