We are in the process of completing a trangle between our three main sites. Today we are a hub/spoke design using OSPF with Area 0 being at our main site and Area 1 and 2 at the other two. When we add the links between the other areas we need to decide on how best to deal with the area0 issues. I've read here that some move area 0 to the WAN, other say not to. I've looked at redistributing OSPF into EIGRP or BGP for the WAN connections. Will this allow us to use the links between the two non-area0 sites? If not am I going to need to put OSPF on the WAN?
The WAN will consist of two high speed circuits between each of the three sites.