[ 1661.480723] br0: port 1(dummy0) entered blocking state
[ 1661.480776] br0: port 1(dummy0) entered disabled state
[ 1661.480814] dummy0: entered allmulticast mode
[ 1661.480865] dummy0: entered promiscuous mode
[ 1661.483769] br0: port 1(dummy0) entered blocking state
[ 1661.483800] br0: port 1(dummy0) entered forwarding state
[ 1661.684649] dummy0: left allmulticast mode
[ 1661.684683] dummy0: left promiscuous mode
[ 1661.684719] br0: port 1(dummy0) entered disabled state