[ 1755.431161] br0: port 1(dummy0) entered blocking state
[ 1755.431217] br0: port 1(dummy0) entered disabled state
[ 1755.431257] dummy0: entered allmulticast mode
[ 1755.431311] dummy0: entered promiscuous mode
[ 1755.434095] br0: port 1(dummy0) entered blocking state
[ 1755.434126] br0: port 1(dummy0) entered forwarding state
[ 1755.616231] dummy0: left allmulticast mode
[ 1755.616259] dummy0: left promiscuous mode
[ 1755.616285] br0: port 1(dummy0) entered disabled state