[ 1950.176319] br0: port 1(dummy0) entered blocking state
[ 1950.176391] br0: port 1(dummy0) entered disabled state
[ 1950.176462] dummy0: entered allmulticast mode
[ 1950.176546] dummy0: entered promiscuous mode
[ 1950.179824] br0: port 1(dummy0) entered blocking state
[ 1950.179854] br0: port 1(dummy0) entered forwarding state
[ 1950.392690] dummy0: left allmulticast mode
[ 1950.392723] dummy0: left promiscuous mode
[ 1950.392775] br0: port 1(dummy0) entered disabled state