[ 1818.096555] br0: port 1(dummy0) entered blocking state
[ 1818.096609] br0: port 1(dummy0) entered disabled state
[ 1818.096648] dummy0: entered allmulticast mode
[ 1818.096704] dummy0: entered promiscuous mode
[ 1818.100157] br0: port 1(dummy0) entered blocking state
[ 1818.100189] br0: port 1(dummy0) entered forwarding state
[ 1818.364398] dummy0: left allmulticast mode
[ 1818.364472] dummy0: left promiscuous mode
[ 1818.364536] br0: port 1(dummy0) entered disabled state