09-25-2007 05:19 AM
Though the answer about the admin domains is correct, I think this was not exactly the question. If you want to use a switch in two fabrics, it needs to be partitioned into two Domains, each with their own Domain ID (and all the other things like name server etc.). To my best knowledge this was only the case for the Brocade 12000 director, and certainly not for the 3900 switch.
09-25-2007 06:05 AM
By Brocade not exist any switch wich can be "PARTITIONED"And BTW, the question is here "3900" and not 12K or other switch... apart from it the 12K not support AD and the both Logical switch in the 12K are not inteded for a Partition.