[ 1764.760972] br0: port 1(dummy0) entered blocking state
[ 1764.761017] br0: port 1(dummy0) entered disabled state
[ 1764.761052] dummy0: entered allmulticast mode
[ 1764.761103] dummy0: entered promiscuous mode
[ 1764.764395] br0: port 1(dummy0) entered blocking state
[ 1764.764427] br0: port 1(dummy0) entered forwarding state
[ 1765.019295] dummy0: left allmulticast mode
[ 1765.019338] dummy0: left promiscuous mode
[ 1765.019371] br0: port 1(dummy0) entered disabled state