I have a task to convert JBoss AS's UDP-based stacks from FD to FD_ALL.[1] I want to make sure I understand the configuration correctly such that I can get the same behavior as we have now for the simple case where one node crashes. (I realize FD_ALL can detect multiple failures more quickly, which is good.) The AS currently uses: <FD timeout="6000" max_tries="5" shun="true"/> Would this be fairly similar: <FD_ALL timeout="30000" interval="6000" shun="true"/> In both case it takes 30 secs to suspect a node, in both cases a message is sent every 6 seconds, and in both cases 5 such messages would have to be lost for some reason before a healthy node would be suspected. [1] https://jira.jboss.org/jira/browse/JBAS-6604 -- Brian Stansberry Lead, AS Clustering JBoss, a division of Red Hat brian.stansberry(a)redhat.com