In the case I have two N5k acting as a vPC peers and I lose the vPC peer-link between two of them, but I do not lose the vPC peer-keepalive link, what would happen when the vPC peer-link comes back again?
As I understand in the case of vPC peer-link failure all vPC member ports on the secondary N5k will be shut down. When the vPC peer-link comes back again what would happen?
I have read that in that case the vPC member ports will not come back automatically, but they will remain disabled until you do manual recovery. Is that really so?
Is there some way that we can automate the process upon recovery?
With just peer-link going down and coming up, I have not seen an issue in 4.x as. Probably your instructor was talking about an issue where with one vPC peer shutdown and reload of the other vPC peer would suspend all vPCs until the peer which was shutdown was brought back up. This issue is addressed in the 5.0 code with "reload restore" knob