[ 1654.669353] br0: port 1(dummy0) entered blocking state
[ 1654.669429] br0: port 1(dummy0) entered disabled state
[ 1654.669497] dummy0: entered allmulticast mode
[ 1654.669586] dummy0: entered promiscuous mode
[ 1654.672110] br0: port 1(dummy0) entered blocking state
[ 1654.672148] br0: port 1(dummy0) entered forwarding state
[ 1654.852227] dummy0: left allmulticast mode
[ 1654.852260] dummy0: left promiscuous mode
[ 1654.852287] br0: port 1(dummy0) entered disabled state