I have several Jboss clusters running on a dev/test Unix Server. Each cluster has a distinct partition name and a different multicast address and port. I modified the ../deploy/cluster-service.xml and changed the multicast address and port in the declaration of the JGroupsUDP protocol. The servers start without any errors. I recently created a Jboss cluster on my Unix production server. It has a distinct partition name and a different multicast address and port than the ones I'm using on the dev/test Unix server. The server starts without any errors. However, to my surprise, when I start the production Jboss server, the Tree Cache can see and knows about the Jboss servers on the dev/test Unix server. I see the message below in the production startup log file: 10:26:47,389 INFO [TreeCache] viewAccpeted(): [serverdev:61285|101] [serverdev:61285, serverdev:61290, serverdev:61325, serverdev:52951...... On the dev/test Unix server, I see the same message in all the Jboss server log files, however, the dev/test log files also contain a reference to the JBoss production server - "serverprod:56345". How can I keep the Tree Cache for the two environments (production and dev/test) separated from each other? The Unix servers are on the same subnet. I am running Jboss V4.0.4.GA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994279#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...