Microsoft only officially supports 2 cross forest OCS 2007 models, resource forest and central forest but they essentially rely on having connectivity with a central node to be up at all times.
We have a multi forest topology running server 2008 r2. It is a mesh satelite network and the nature of our network means we cant gurantee connectivity to a central site at all times. We have OCS 2007 R2 deployed in each forest so "internal" ocs works fine, we want to have cross forest ocs communication when the links are up. We have configured edge servers in each forest and have federation allowed but the edge servers dont see each other.
Has anyone had two ocs enviroments talking to each other before, or has any ideas on how to achive this.