Solved: Open vSwitch and persistent MAC addressesFri 23 May 2014 by Lars Kellogg-Stedman Tags openstack openvswitch networking
In my previous post I discussed a problem I was having setting a
persistent MAC address on an OVS bridge device. It looks like the
short answer is, "don't use
ip link set ..." for this purpose.
You can set the bridge MAC address via
ovs-vsctl like this:
ovs-vsctl set bridge br-ex other-config:hwaddr=$MACADDR
So I've updated my
ifconfig-br-ex to look like this:
DEVICE=br-ex DEVICETYPE=ovs TYPE=OVSBridge ONBOOT=yes OVSBOOTPROTO=dhcp OVSDHCPINTERFACES=eth0 MACADDR=fa:16:3e:ef:91:ec OVS_EXTRA="set bridge br-ex other-config:hwaddr=$MACADDR"
OVS_EXTRA parameter gets passed to the
add-br call like this:
ovs-vsctl --may-exist add-br br-ex -- set bridge br-ex other-config:hwaddr=$MACADDR
And unlike using
ip link set, this seems to stick.