[ 1787.166017] br0: port 1(dummy0) entered blocking state
[ 1787.166115] br0: port 1(dummy0) entered disabled state
[ 1787.166182] dummy0: entered allmulticast mode
[ 1787.166277] dummy0: entered promiscuous mode
[ 1787.170516] br0: port 1(dummy0) entered blocking state
[ 1787.170559] br0: port 1(dummy0) entered forwarding state
[ 1787.482226] dummy0: left allmulticast mode
[ 1787.482269] dummy0: left promiscuous mode
[ 1787.482311] br0: port 1(dummy0) entered disabled state