This is going to be new network in my datacenter and i have question related vPC, as you can see i have A1/A2 switch (L3/L2 routing) in aggregation layer and C1/C2 switches for Core (L3 routing). I am planning to implement vPC between TOR and Aggregation layer to avoid STP and utilize full bandwidth.
Question: If TOP switch send traffic to Aggr layer switch and it will send traffic to both link using hash algorithm in that case how A2 switch will send traffic to upstream core switch (L3)? Does A2 switch send traffic to A1 using trunk or it will send traffic directly to C2 switch and then C2 switch forward to C1 (because C1 is primary BGP switch)
I am new in vPC so trying to understand how switch will handle upstream traffic.
- Should i create vPC between Core C1/2 and Aggr A1/A2 to resolve this routing loop?