I ran into this a few years back - and we did end up doing it. It's basically because it peer link is totally different to a trunk between two chassis. i.e don't use it ever unless a downstream VPC link is down.
I can't remember the details, however this post by Brad Hedlund explains everything you need to know. http://bradhedlund.com/2010/12/16/routing-over-nexus-7000-vpc-peer-link-yes-and-no/ -----Original Message----- From: cisco-nsp [mailto:[email protected]] On Behalf Of Yham Sent: 19 November 2015 11:49 To: [email protected] NSP Subject: [c-nsp] Nexus 7K - Routing over vPC Peer-link between chassis Hi All, Could you please tell me what is the disadvantage of running routing protocols e.g. iBGP between SVIs of two chassis over vPC peer-link? I heard a lot that cisco recommend to use a separate link for layer-3 but why? logically peer-link should be more reliable as generally it bundle with multiple physical links. Thanks in advance. Regards YH _______________________________________________ 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/
