vpc back-to-back connect to same distributed switch

[knack81]

Hi,

i have this question. I know that i can create a vpc back-to-back configuration between a pair of n3k and n5k. my question is, if i create on each couple of nexus e lacp portchannel to the same distribution switch stack will create a loop?

thanks

Andrea

[MHM Cisco World]

Yes you can but STP will BLK at least 2 link.

MHM

[balaji.bandi]

Depends on what VLAN allowed on that Port-channel, how your Root bridge configured, Spanningtree priority for the VLAN.

If this was planning properly then you can have primary path and security path available in case of the path fails.