[ 1860.553835] br0: port 1(dummy0) entered blocking state
[ 1860.553873] br0: port 1(dummy0) entered disabled state
[ 1860.553914] dummy0: entered allmulticast mode
[ 1860.553971] dummy0: entered promiscuous mode
[ 1860.557353] br0: port 1(dummy0) entered blocking state
[ 1860.557383] br0: port 1(dummy0) entered forwarding state
[ 1860.817038] dummy0: left allmulticast mode
[ 1860.817072] dummy0: left promiscuous mode
[ 1860.817104] br0: port 1(dummy0) entered disabled state