[ 1786.788434] br0: port 1(dummy0) entered blocking state
[ 1786.788473] br0: port 1(dummy0) entered disabled state
[ 1786.788497] dummy0: entered allmulticast mode
[ 1786.788540] dummy0: entered promiscuous mode
[ 1786.791862] br0: port 1(dummy0) entered blocking state
[ 1786.791883] br0: port 1(dummy0) entered forwarding state
[ 1787.028306] dummy0: left allmulticast mode
[ 1787.028330] dummy0: left promiscuous mode
[ 1787.028351] br0: port 1(dummy0) entered disabled state