[ 1559.942535] br0: port 1(dummy0) entered blocking state
[ 1559.942616] br0: port 1(dummy0) entered disabled state
[ 1559.942683] dummy0: entered allmulticast mode
[ 1559.942774] dummy0: entered promiscuous mode
[ 1559.945478] br0: port 1(dummy0) entered blocking state
[ 1559.945512] br0: port 1(dummy0) entered forwarding state
[ 1560.120412] dummy0: left allmulticast mode
[ 1560.120509] dummy0: left promiscuous mode
[ 1560.120570] br0: port 1(dummy0) entered disabled state