[ 1860.378020] br0: port 1(dummy0) entered blocking state
[ 1860.378080] br0: port 1(dummy0) entered disabled state
[ 1860.378134] dummy0: entered allmulticast mode
[ 1860.378227] dummy0: entered promiscuous mode
[ 1860.382008] br0: port 1(dummy0) entered blocking state
[ 1860.382032] br0: port 1(dummy0) entered forwarding state
[ 1860.652094] dummy0: left allmulticast mode
[ 1860.652120] dummy0: left promiscuous mode
[ 1860.652143] br0: port 1(dummy0) entered disabled state