Thursday, January 16, 2014
Cisco Nexus: vPC Keepalive Notes
I have had several discussions about vPC keepalives recently and are preparing to put two 7000s, two 5000s, and several FEXs in. The last Nexus I setup, I did vPC keepalives across the management interface of two 5000s. This works well and has not had any problems since I put it in. However, the engineer I was talking with was concerned about someone unplugging a cable from the management interface. He says he has seen people do that in the past and wanted to keep that from happening. Very good point on his part, so I did some research and wanted to post the notes I came across about vPC keepalives. This is pretty important when you are doing your design for redundancy setup of 7000s/5000s. Im posting the link on where I found this information and cut and pasting in the notes on this topic. I dont think I can explain it any better than the author (Pulkit Nagpal). Ive learned a lot from going back over these notes and for me, its worth reviewing again.