[ 1619.941642] br0: port 1(dummy0) entered blocking state
[ 1619.941682] br0: port 1(dummy0) entered disabled state
[ 1619.941718] dummy0: entered allmulticast mode
[ 1619.941767] dummy0: entered promiscuous mode
[ 1619.944320] br0: port 1(dummy0) entered blocking state
[ 1619.944382] br0: port 1(dummy0) entered forwarding state
[ 1620.132580] dummy0: left allmulticast mode
[ 1620.132611] dummy0: left promiscuous mode
[ 1620.132638] br0: port 1(dummy0) entered disabled state