[ 1669.007106] br0: port 1(dummy0) entered blocking state
[ 1669.007139] br0: port 1(dummy0) entered disabled state
[ 1669.007246] dummy0: entered allmulticast mode
[ 1669.007353] dummy0: entered promiscuous mode
[ 1669.010038] br0: port 1(dummy0) entered blocking state
[ 1669.010061] br0: port 1(dummy0) entered forwarding state
[ 1669.188845] dummy0: left allmulticast mode
[ 1669.188876] dummy0: left promiscuous mode
[ 1669.189001] br0: port 1(dummy0) entered disabled state