[ 1706.826833] br0: port 1(dummy0) entered blocking state
[ 1706.826876] br0: port 1(dummy0) entered disabled state
[ 1706.826913] dummy0: entered allmulticast mode
[ 1706.826959] dummy0: entered promiscuous mode
[ 1706.829424] br0: port 1(dummy0) entered blocking state
[ 1706.829485] br0: port 1(dummy0) entered forwarding state
[ 1707.008406] dummy0: left allmulticast mode
[ 1707.008439] dummy0: left promiscuous mode
[ 1707.008467] br0: port 1(dummy0) entered disabled state