[ 1727.916335] br0: port 1(dummy0) entered blocking state
[ 1727.916378] br0: port 1(dummy0) entered disabled state
[ 1727.916412] dummy0: entered allmulticast mode
[ 1727.916475] dummy0: entered promiscuous mode
[ 1727.919291] br0: port 1(dummy0) entered blocking state
[ 1727.919329] br0: port 1(dummy0) entered forwarding state
[ 1728.103539] dummy0: left allmulticast mode
[ 1728.103599] dummy0: left promiscuous mode
[ 1728.103663] br0: port 1(dummy0) entered disabled state