I have 2 data centers each with Internet connections, one on the east coast and one on the west coast connected to a MPLS network. I also have a bunch of remote sites around the country connected to the same MPLS network.
I can advertise the default route into the MPLS network from both sites and sites closest to the west coast data center will prefer that default route and sites closest to the east coast data center will prefer the default route to the east coast data center.
Since the east coast data center's Internet bandwidth is used more than the west coast data center's Internet bandwidth. There are times that I would like to some how tweak the east coasts advertisement of that default route so that the larger east coast offices will route out the west coast data center during periods of high utilization on the east coast.
I peer with my provider via BGP and the provider runs OSPF. When i tweak attributes in the BGP advertisement of the default route from the east coast it is an all or nothing update in that all remote sites then go out the west coast data center.
Is there anyway of solving this problem?
Thanks in advance.