Problem statement:- One single customer has taken two service providers and using MPLS sham links on both. All CE routers are configured as Area0 on both the clouds.
Issue :- Customer wants the load-sharing on both the service providers between two sites.
Clarity on secenario:-
MPLS ISP-A = All sites are connected to MPLS PEs and are part of Area0.
MPLS ISP-B = All sites are connected to MPLS PEs and are again part of Area0.
Both ISPs have given Sham links to customer sothat customer can receive intra-area LSAs (IA) type.
Now, customer wants to do load-sharing on both service providers.
As per my understanding of OSPF design guide, the manual workaround on cost would never yield an optimal routed network.
Please suggest the other workaround to achieve the load-sharing.