[ 1678.911629] br0: port 1(dummy0) entered blocking state
[ 1678.911667] br0: port 1(dummy0) entered disabled state
[ 1678.911702] dummy0: entered allmulticast mode
[ 1678.911756] dummy0: entered promiscuous mode
[ 1678.914730] br0: port 1(dummy0) entered blocking state
[ 1678.914768] br0: port 1(dummy0) entered forwarding state
[ 1679.123071] dummy0: left allmulticast mode
[ 1679.123106] dummy0: left promiscuous mode
[ 1679.123134] br0: port 1(dummy0) entered disabled state