The organization I just started supporting is moving to DMVPN with a dual hub design using 2 different MPLS service providers underneath. OSPF routing protocol. Trying to wrap my head around any routing anomalies I may come across or other caveats when using 2 different providers for the MPLS service. To add a little complexity some spoke sites are using one provider for the primary and other spokes using the other. I was thinking of maybe some asymertric routing possibly? Or, maybe spoke to spoke tunnels not coming up because of the different primary providers being used at some spokes and traffic having to traverse the hub? If anyone has any of those "watch out for this" or "be sure to" advice it would be appreciated.
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