Cisco Nexus 5K’s – vPC with FEX configuration

I was beating myself in the head a little with trying to configure FEX ports on two different 2K’s to be used in a vPC.  The “verify” command would be successful but the “commit” command said it failed and that the vPC already existed.   Come to find out after opening a TAC case and then actually finding the link below, you do NOT need to specify a vPC number when configuring a port-channel on two different FEX’s.  The Nexus will do this automatically for you, with a very high number.  The reason it does this is because these ports aren’t local and they are shared with another 5K.  So dont worry, just because you don’t see the port-channel config with a “vPC ### ” statement, doesnt mean its not in a VPC.  Do a “show vpc” and you’ll see it down at the bottom.   Bottom line, you build a port-channel just like you normally would, just no vpc command needed.

Link reference:
https://supportforums.cisco.com/discussion/11887661/vpc-fex-interfaces