[jboss-user] [JBossCache] - difference between mcast_addr and bind_addr

I am using treecache in a clustered environment (16 total nodes, 4x4). Our current configuration only specifies a bind_addr, but I believe specifying both a mcast_addr and mcast_port might help the performance issues we're running into. I'm trying to convince a few people to specify a mcast_addr and port, but I'm not sure I totally understand the difference between the two (even after going through all the documentation). Can someone please tell me the difference between these two parameters? Similarly, does a mcast_addr need to be specified if a bind_addr is already specified? Here is some information just in case you might want to know: JBossCache version 1.4.1 SP3 Hibernate version 3.2.4 ga Websphere version 6.0.x Solaris Machines (not sure of the exact version, but pretty recent). | <UDP bind_addr="xxx.xxx.xxx" | ip_mcast="true" | ip_ttl="32" | mcast_send_buf_size="150000" | mcast_recv_buf_size="80000" | ucast_send_buf_size="150000" | ucast_recv_buf_size="80000" | loopback="false" | /> | We are using optimistic locking with repl_sync, but this might change as we go through our performance/scalability cycle. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4058409#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...