[ 1784.417633] br0: port 1(dummy0) entered blocking state
[ 1784.417682] br0: port 1(dummy0) entered disabled state
[ 1784.417719] dummy0: entered allmulticast mode
[ 1784.417770] dummy0: entered promiscuous mode
[ 1784.420883] br0: port 1(dummy0) entered blocking state
[ 1784.420958] br0: port 1(dummy0) entered forwarding state
[ 1784.622242] dummy0: left allmulticast mode
[ 1784.622298] dummy0: left promiscuous mode
[ 1784.622332] br0: port 1(dummy0) entered disabled state