Jgroups and JMS

Jgroups is a clustering library and protocol stack and it is for multi casting communication like IP or transport protocols. it can be used to creating and maintaining groups and task distribution systems by maintaining with nodes addition on clusters. Can we do the same with JMS? yes, of course. but when we have lot of loads, JMS server gets bottleneck. So, if there is a need for joint clusters and lot of messages, prefer to go for Jgroups(www.jgroups.com) when there is a heavy traffic.