5020 UPC

[bob.donnelly]

Initial design of connecting 2232 and 2248 FEX modules to a 5020 and I want to ensure that I'm connecting the ports on ports controlled by different Unified Port Controllers.  Just trying to minimize any potential outages that could occur by connecting all four FEX uplink ports to the same UPC.  I am looking for what ports are controlled by which UPC's.  So if I connected ports 1-4 am I on different UPC's or 1-2, 5-6?  Pointers to any references will be greatly appreciated.

Thanks in advance for your help.

-Bob

[rtjensen4]

Try this link:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/white_paper_c11-462176.html

There's a section called "Data Plane":

"Each UPC manages 4 10 Gigabit Ethernet/FCoE ports  and makes forwarding decisions for the packets received on those ports.  After a forwarding decision is made, the packets are queued in VOQs,  waiting to be granted access to the UCF. (Because of the cut-through  characteristics of the architecture, packets are queued and dequeued  before the full packet contents have..."