I am in the midst of installing a 2nd MPLS WAN to our branches and running into a bit of a problem.
In branches in which both MPLS clouds terminate into a single router I am getting a problem in which routes are swinging through the branch rather than one of the headend routers.
Is there a way to restrict advertisement of restricting advertisement to same AS marked networks? I would never want one of my branches to route any traffic other than their regional networks.
Right now I am getting intermittent route loops where a network goes around both MPLS clouds and never terminates.