I have setup a network shown in the diagram. I am getting same routes via two different Clouds. What I want is to use one path as a preferred path over the other. I want to use BGP as routing protocol. I have control over both sides of the WAN link and I want this shifting to automatic on both sides of the link. Traffic should be symmetric.
Should I use IBGP between routers A,B and C and make route selection on router C or any other approach.
If one site is down via Could_1 it should be sending and receiving traffic via could_2 from all the sites and vice versa.
Thanks for your time