A federation link, where one broker acts as the client of another, will not perform failover if the server-broker is clustered. Cluster failover needs to be implemented in the broker-as-client similarly to the way it is done in the messaging client implementation.
Treating as duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=462461 Full session-resume functionality for links can be raised as a separate BZ if required (along with justification). *** This bug has been marked as a duplicate of bug 462461 ***