Senario 1: peer-link down, keepalive still working
Q1: What are the reasons for Secondary switch to shutdown all its vPC member ports?
Q2: When vPC member ports on secondary switch are down, PC-B and PC-C will lose 50% of uplink BW, and PC-D will lose connection to PC-A/B/C. How these disadvantages are concerned by Cisco?
Q3: What are the detailed reactions to the comming back of peer-link. vPC domain automatically recovers without human intervention?
Q4: Why not switch to split-brain scenario (both switchese claim the primary role and working properly) in response to peer-link failure, as this ensures 100% utilization of uplink BW.