JMS in Jboss cluster

[Ranjith Pillai]

Hi,
Please correct me if I am wrong..
I have 4 nodes in a clustered environment and deployed a message producer and consumer.
1) Since this is clustered the same producer and consumer exist in all servers right?
2) So when a producer produce a message, the same consumer which is replicated in all servers receives the message right?.
3) How does this go for publish/subscribe(multiple senders and multiple recievers) and point to point(multiple sender and one receiver) in JBoss cluster?.
Any help deeply appreciated..
Thanks in advance,
Ranjith