If you deploy multiple
IM and Presence clusters and you configure XMPP federation, you must turn on
XMPP federation on at least one node per cluster. You must configure the same
XMPP federation settings and policy on each cluster;
IM and Presence does not replicate the XMPP federation configuration across
cluster. The System Troubleshooter reports if XMPP federation settings across
clusters are not synchronized. The System Troubleshooter performs the following
checks: