[ 1913.102181][ T9352] br0: port 1(dummy0) entered blocking state
[ 1913.102380][ T9352] br0: port 1(dummy0) entered disabled state
[ 1913.102542][ T9352] dummy0: entered allmulticast mode
[ 1913.103531][ T9352] dummy0: entered promiscuous mode
[ 1913.131686][ T9353] br0: port 1(dummy0) entered blocking state
[ 1913.132123][ T9353] br0: port 1(dummy0) entered forwarding state
[ 1915.081494][   T12] dummy0: left allmulticast mode
[ 1915.082350][   T12] dummy0: left promiscuous mode
[ 1915.082572][   T12] br0: port 1(dummy0) entered disabled state