[c-nsp] fabricpath and vPC+

[James Slepicka (c-nsp)]

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:cisco-nsp-bounces at puck.nether.net] On Behalf Of Arne Larsen / Region Nordjylland
Sent: Wednesday, November 13, 2013 11:23 AM
To: 'cisco-nsp at puck.nether.net'
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  cisco-nsp at puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/