[ 1632.889768] br0: port 1(dummy0) entered blocking state
[ 1632.889823] br0: port 1(dummy0) entered disabled state
[ 1632.889859] dummy0: entered allmulticast mode
[ 1632.889911] dummy0: entered promiscuous mode
[ 1632.892557] br0: port 1(dummy0) entered blocking state
[ 1632.892622] br0: port 1(dummy0) entered forwarding state
[ 1633.079559] dummy0: left allmulticast mode
[ 1633.079604] dummy0: left promiscuous mode
[ 1633.079644] br0: port 1(dummy0) entered disabled state