Customer has come to me with an interesting routing / load balancing question.
Large MPLS cloud to 50+ remote Branch locations with two Data Centers, A and B.
The PE routers in the cloud at each branch has connections to bothe Data Centers.
The PE routers are configured to see equal cost paths to the two Data Centers.
The Data Centers have Dark Fiber between them and they have the Server Vlan 172.16.10.x available at both sites.
ServerA is in location A and Server B is in location B
They will have HSRP on the gateway routers in location A and B with the RouterA being the primary.
The customer understands from the Branch we can load balance stream by stream traffic back to the Data Centers to use under normal conditions. What they are concerned is that all return traffic is going to go out through RouterA.
Looking for some way that we can load balance out bound traffic from the Data Centers so that traffic from ServerA will go out RouterA and ServerB will go out RouterB, but failover seamlessly to the other location.
Moving ServerB to a different Subnet would be the option of last resort.
Does anyone have any thoughts?