[ 1799.017283] br0: port 1(dummy0) entered blocking state
[ 1799.017318] br0: port 1(dummy0) entered disabled state
[ 1799.017354] dummy0: entered allmulticast mode
[ 1799.017407] dummy0: entered promiscuous mode
[ 1799.020233] br0: port 1(dummy0) entered blocking state
[ 1799.020297] br0: port 1(dummy0) entered forwarding state
[ 1799.212949] dummy0: left allmulticast mode
[ 1799.213020] dummy0: left promiscuous mode
[ 1799.213196] br0: port 1(dummy0) entered disabled state