[ 1559.825252] br0: port 1(dummy0) entered blocking state
[ 1559.825306] br0: port 1(dummy0) entered disabled state
[ 1559.825340] dummy0: entered allmulticast mode
[ 1559.825396] dummy0: entered promiscuous mode
[ 1559.827975] br0: port 1(dummy0) entered blocking state
[ 1559.828010] br0: port 1(dummy0) entered forwarding state
[ 1560.025293] dummy0: left allmulticast mode
[ 1560.025335] dummy0: left promiscuous mode
[ 1560.025362] br0: port 1(dummy0) entered disabled state