[ 1886.634904] br0: port 1(dummy0) entered blocking state
[ 1886.634949] br0: port 1(dummy0) entered disabled state
[ 1886.634980] dummy0: entered allmulticast mode
[ 1886.635031] dummy0: entered promiscuous mode
[ 1886.637908] br0: port 1(dummy0) entered blocking state
[ 1886.637975] br0: port 1(dummy0) entered forwarding state
[ 1886.825285] dummy0: left allmulticast mode
[ 1886.825325] dummy0: left promiscuous mode
[ 1886.825381] br0: port 1(dummy0) entered disabled state