Use port channels. In a FabricPath topology, loop-free trees are created to forward multidestination frames (broadcast, multicast, etc.). If you use individual links between switches, only one of those links will be a part of the tree. If you use port channels, the entire port channel will be used.
Additionally, though I doubt it matters in most deployments, with port channels you'll have 2-16x fewer ISIS adjacencies (reduced CPU utilization). James -----Original Message----- From: cisco-nsp [mailto:[email protected]] On Behalf Of Arne Larsen / Region Nordjylland Sent: Wednesday, November 13, 2013 11:23 AM To: '[email protected]' Subject: [c-nsp] fabricpath and vPC+ Hi all What is the correct setup when one is using fabricpath and vPC+ If 2 5k are direct connected with 2 10G fabricpath interfaces, should these 2 be a channel group or doesn't it really matter, because of the equal cost routing in isis /Arne _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
