[ 1884.824500] br0: port 1(dummy0) entered blocking state
[ 1884.824580] br0: port 1(dummy0) entered disabled state
[ 1884.824646] dummy0: entered allmulticast mode
[ 1884.824737] dummy0: entered promiscuous mode
[ 1884.828368] br0: port 1(dummy0) entered blocking state
[ 1884.828405] br0: port 1(dummy0) entered forwarding state
[ 1885.099924] dummy0: left allmulticast mode
[ 1885.099966] dummy0: left promiscuous mode
[ 1885.100000] br0: port 1(dummy0) entered disabled state