Excerpts from Yan Vinogradov's message of Fri Jan 18 18:55:18 +0000 2008: > Hi all! > > My understanding is RHEL4 clusters default to broadcast upon creation. > If later on the user chooses to switch to multicast - how does the > clustering software know what interface name is to be used for each node > of the cluster? 'system-config-cluster' utility seems to just be using a > hardcoded value of "eth0" regardless of the actual name of the interface. > > Thank you, > Yan > Have a look at the following tip: http://sources.redhat.com/cluster/faq.html#broadcastmulticast2 How can I configure my RHEL4 cluster to use multicast rather than broadcast? Put something like this in your cluster.conf file: <clusternode name="nd1"> <multicast addr="224.0.0.1" interface="eth0"/> </clusternode> cya, eric -- Eric Williams GSS-EMEA 08:29:01 up 4 days, 14:45, 0 users, load average: 0.24, 0.28, 0.27 -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster