I will soon be looking to isl a couple of existing mds 9000 series switches, probably using 2 or 3 ports (trunking?) for speed and redundancy. I think I have to have the same vsans on both switches - which I guess means one of them has to change. Anyway I've looking for some documentation on how to do this. So far I'm finding lots of stuff about zoning and vsans, not much on isl/trunking nor migrating a vsan to match another switch. Suggestions, best practices, hints ? I'll take anything you got!