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
>BRIDGE=br0
then of ifcfg-br0 script:
DEVICE=br0
TYPE=Bridge
BOOTPROTO=dhcp
>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
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