Running CentOS 5.4 x64.
Have successfully bridged eth2 with br2 by following the instructions here: http://wiki.libvirt.org/page/Networking (under the RHEL section)
Have been running several KVM VMs successfully via this bridge.
I
am now trying to bridge additional interfaces by using the same
routine. Each bridge is named to correspond with the ethX device its
bridged with.
Example of ifcfg-eth0 script:
DEVICE=eth0
HWADDR=00:16:76:D6:C9:45
ONBOOT=yes
BRIDGE=br0
then of ifcfg-br0 script:
DEVICE=br0
TYPE=Bridge
BOOTPROTO=dhcp
ONBOOT=yes
DELAY=0
This is repeated 3 times for eth0-eth2 and br0-br2.
I've
read somewhere that STP needs to be enabled when using multiple
bridges. I've tried adding STP=on to the ifcfg-brX scripts but with the
same result. Yes, brctl shows that STP is on.
The original
bridge eth2-br2 continues to work but I can't get any traffic across
any other bridge. Either by dhcp or static ips.
Is multiple bridges a possibility?
Previous
to moving to KVM I was running Xen Server on the same hardware. I am
just trying to recreate the network setup I had. I believe Xen Server
runs on top of a linux platform so such a thing should be possible.
Thanks,
Jacob