On 07/19/2011 07:52 PM, Khusro Jaleel wrote: > A bit of a long shot but does turning on STP on the br* interfaces help? > I vaguely remember I had to do the following on one of my machines that > uses bonding + bridges: > > # brctl stp br0 on > > I have put this in the machines' /etc/rc.local so it's applied upon > every reboot. I've had to do the same for my Fedora hosts with Centos guests. You can put STP=on in /etc/sysconfig/network-scripts/ifcfg-br0 to force this bridge to always use STP. Also, adding NETWORKDELAY=15 to /etc/sysconfig/network will force you network startup script to hang for 15 seconds during start up. This gives the STP a chance to settle before any other services attempt to use the bridge. Kal