Re: Invalid Argument when adding a bond to a bridge

On Thu, 22 Dec 2011 08:25:54 -0600
Dyweni - NetDev [off-list ref] wrote:

 Hi All,

 I need some help figuring this one out... Whenever I try to add a bond 
 to a
 bridge, I get back an invalid argument error. I've confirmed this on
 3.2-rc6, 3.1.5, 3.0.13, and 2.6.39.4 (haven't checked earlier kernels).

 Here's my setup: 32bit KVM virtual machine with no network cards (... 
 -net
 none ... ).

 I created the bond with: echo "+x" > /sys/class/net/bonding_masters

 I created the bridge with: brctl addbr b

 I try to add the bond to the bridge with: brctl addif b x

The bonding device inherits its MAC address from the slave
devices. Therefore until the you add a slave to the bonding device
it's MAC address isn't set (all zeros). Bridging is not allowed
without a valid MAC address.

The solution is to fully configure the bonding device before adding
to the bridge.