protected JChannel createChannel(String name) throws Exception {
JChannel retval=new JChannel(new SHARED_LOOPBACK(),
new SHARED_LOOPBACK_PING(),
new NAKACK2().setValue("use_mcast_xmit",false)
.setValue("log_discard_msgs",false).setValue("log_not_found_msgs",false),
new UNICAST3(),
new STABLE().setValue("max_bytes",50000),
new GMS().setValue("print_local_addr",false)
.setValue("join_timeout", 100)
.setValue("leave_timeout", 100)
.setValue("merge_timeout",5000)