I have 2 nexus 5ks connected together via port-channel 1. They are not currently configured with a vpc peer-link and my customer decided they now need this function. I want to know if I add the vpc peer-link command to both 5ks if it will cause any type of outage to the current environment? They already have vpc peer keepalive configured, I just need to add the vpc peer-link command to the current port-channel between switches. Once this is configured I'll add the vpc ports as needed.
shoneycutt - did you ever attempt this? In the same boat.. need to convert to netapp port channels to VPC. I think adding "VPC 20" to the port channel will definitely take down the interface. I just need one of the links to stay up!