we've 2 SAN768b switches and we're buying 2 new SAN768b-2. They'll replace the old ones in some point. In between we'll need to migrate all infrastructure from the old to the new.
They're are configured as logical switches.
I'm thinking to connect them via ICL (they'll be far about 20m) - Fabric A to Fabric A and Fabric B to Fabric B - migrate all hosts, printers, storages etc on the scheduled time, and after everything done, remove all ICL configuration and "release" the old switches.