[ 1017.690470] br0: port 1(dummy0) entered blocking state
[ 1017.690511] br0: port 1(dummy0) entered disabled state
[ 1017.690544] dummy0: entered allmulticast mode
[ 1017.690603] dummy0: entered promiscuous mode
[ 1017.694183] br0: port 1(dummy0) entered blocking state
[ 1017.694252] br0: port 1(dummy0) entered forwarding state
[ 1017.963121] dummy0: left allmulticast mode
[ 1017.963165] dummy0: left promiscuous mode
[ 1017.963222] br0: port 1(dummy0) entered disabled state