[ 1754.721796] br0: port 1(dummy0) entered blocking state
[ 1754.721883] br0: port 1(dummy0) entered disabled state
[ 1754.721956] dummy0: entered allmulticast mode
[ 1754.722058] dummy0: entered promiscuous mode
[ 1754.725297] br0: port 1(dummy0) entered blocking state
[ 1754.725331] br0: port 1(dummy0) entered forwarding state
[ 1754.972205] dummy0: left allmulticast mode
[ 1754.972264] dummy0: left promiscuous mode
[ 1754.972326] br0: port 1(dummy0) entered disabled state