The <JBdir>/server/configdir/deploy/jboss-web-cluster.sar/META-INF/jboss-service.xml file contains the session replication settings. Consider the following options to improve performance:
Use the replication strategy
REPL_ASYNC.Under the UDP protocol stack ensure that the
mcast_addris the same on all cluster members.Under the UDP protocol stack ensure that the
mcast_portis the same on all cluster members.When running under Windows 2003, ensure that the
loopbackattribute of the UDP protocol stack is set totrue. For Linux this should be set tofalse. See the comment about this in the file.

