[ 1918.957330] br0: port 1(dummy0) entered blocking state
[ 1918.957370] br0: port 1(dummy0) entered disabled state
[ 1918.957403] dummy0: entered allmulticast mode
[ 1918.957457] dummy0: entered promiscuous mode
[ 1918.960244] br0: port 1(dummy0) entered blocking state
[ 1918.960305] br0: port 1(dummy0) entered forwarding state
[ 1919.149991] dummy0: left allmulticast mode
[ 1919.150020] dummy0: left promiscuous mode
[ 1919.150049] br0: port 1(dummy0) entered disabled state