On 28/08/09 15:10, brem belguebli wrote:
Hi, I'm trying to send cluster communications thru dedicated LAN interfaces (out of band network) separate from the production interfaces but it doesn't seem to be functional. I have a 2 nodes cluster (RHEL 5.3) with 2 bonding interfaces each, one bonding for production on a given Vlan and the other on a dedicated and isolated LAN (out of band LAN). According to some cman doc (that may be outdated), the way to do so is to declare explicitely at each clusternode level the multicast addr of the cluster and the interface on which the coms are sent. <clusternode name="node1.mydomain" nodeid="1" votes="1"> <multicast addr="239.128.2.1" interface="bond1"/> </clusternode> <clusternode name="node2.mydomain" nodeid="2" votes="1"> <multicast addr="239.128.2.1" interface="bond1"/> </clusternode> and the cman multicast addr: <cman expected_votes="3" two_node="0"> <multicast addr="239.128.2.1"/> </cman> (I have a qdiskd). After restarting the cluster, traffic is still sent through bond0 which is the production interface.(tcpdump -i bond0 host 239.128.2.1)
I don't know where that document is but it's rather out of date, as you suspected ;-)
The wiki has a up-to-date item on how to assigned different ethernet interfaces for cman:
http://sources.redhat.com/cluster/wiki/FAQ/CMAN#cman_heartbeat_nic Chrissie -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
