Tuesday, July 2, 2019

Interconnect Between Nexus 9k and Catalyst 9400

I am installing a new top of rack nexus 9k switch pair soon and was wondering the best configuration for connecting it back to my cat 9407. This is purely L2. No routing etc between the two.

I thought of the 3 options in the attached image. https://i.imgur.com/y9KJz4t.jpg

First being an isolated portchannel on each nexus which I believe is a bad design when we have VPC to work with. Second option was using VPC and creating 2 port channels. The third option I came up with was just using all 4 ports in one portchannel/vpc. Let me know if there is a clear best practice winner or if I need to provide additional information. Thanks in advance.



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