No, this is just an example: for UDP, if you call RpcDispatcher.callRemoteMethods() with use_anycast=false, I'll use regular multicast. If it is true, I'll use single unicasts *no matter how many members there are in the target list* ! So the decision whether to use anycast or not would be made by JBossCache, possibly based on my previous example. Maybe even configurable ? Although we have already too many attributes... :-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995857#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...