I am trying to setup a fault tolerant configuration for a branch site using MPLS as the primary and DMVPN as the backup. The MPLS cloud uses BGP, our data center and directly connected sites use EIGRP. BGP routes are injected into the EIGRP network at the data center.
My problem is that when both MPLS and DMVPN are in use, routers at the data center see EIGRP advertisements as a lower cost than the BGP injected route. Traffic is returned on the much slower backup circuit.
My setup...
Router 1
100 mbps MPLS connection
HSRP priority 200
SLA Track BGP reachability with HSRP priority decrement 150
Router 2
10 mpbs DMVPN over direct internet connection
HSRP priory 100
Ideally, I would like router 2 to only advertise its the local subnet on EIGRP when it is the primary HSRP router. Another option is to setup an SLA track on router 2 to watch the BGP neighbor of router 1. I have not found any examples of how to advertise routes based on an SLA.
I am okay with the convergence delay of EIGRP when the MPLS connection fails. In my tests performing this manually, it takes less than 30 seconds, an acceptable outage for this site.
