[ 1863.583958] br0: port 1(dummy0) entered blocking state
[ 1863.584033] br0: port 1(dummy0) entered disabled state
[ 1863.584102] dummy0: entered allmulticast mode
[ 1863.584183] dummy0: entered promiscuous mode
[ 1863.587640] br0: port 1(dummy0) entered blocking state
[ 1863.587670] br0: port 1(dummy0) entered forwarding state
[ 1863.837905] dummy0: left allmulticast mode
[ 1863.837941] dummy0: left promiscuous mode
[ 1863.838028] br0: port 1(dummy0) entered disabled state