On Apr 17, 2012, at 6:49 PM, Ross Walker <rswwalker@xxxxxxxxx> wrote: > Just a shot in the dark here. > > Take a look at the NIC and switch port flow control status during an outage, they may be paused due to switch load. > > Is there anything else on the network switches that might flood them every half hour for a two minute duration? Let me also add that constant spanning tree convergence can cause this too. Make sure your choice of protocol and priority suit your topology and equipment. -Ross _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos