Greetings, In addition what suggestions others give, just make sure that the cluster hearbeat ports on the switch is configured to multicast. Regards, Rajagopal On 10/13/09, Gunther Schlegel <schlegel@xxxxxxxxx> wrote: > Hi, > > this is a bit OT, but definitely cluster-related. > > > I am looking for a way to test the switch VLAN configuration from my > RHEL5.4 cluster nodes. > > The cluster is running Virtual Machines as services, there is a network > bridge for each VLAN configured on the each of the nodes. The cluster > nodes itself have no need to access the VM's VLANs, so the bridges do > not have any IP assigned to it. As the VMs may be migrated between the > nodes, it is crucial that every node may use any required VLAN. > > While we do monitor the switch configuration, we came accross a broken > switch, which seemed to work but did not forward some VLANs although the > configuration was correct. I would like the nodes to test whether they > have access to a given VLAN themselves to recognize that situation. > > As there are no IPs assigned to the bridges, simple ping-style tests are > not an option. I tried to find something based on arp, but have not been > successful yet. > > Any hint is highly appreciated. > > > best regards, Gunther > > -- > Gunther Schlegel > Manager IT Infrastructure > > > ............................................................. > Riege Software International GmbH Fon: +49 (2159) 9148 0 > Mollsfeld 10 Fax: +49 (2159) 9148 11 > 40670 Meerbusch Web: www.riege.com > Germany E-Mail: schlegel@xxxxxxxxx > --- --- > Handelsregister: Managing Directors: > Amtsgericht Neuss HRB-NR 4207 Christian Riege > USt-ID-Nr.: DE120585842 Gabriele Riege > Johannes Riege > ............................................................. > YOU CARE FOR FREIGHT, WE CARE FOR YOU > > > > -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
