[ 1793.856938] br0: port 1(dummy0) entered blocking state
[ 1793.856983] br0: port 1(dummy0) entered disabled state
[ 1793.857024] dummy0: entered allmulticast mode
[ 1793.857079] dummy0: entered promiscuous mode
[ 1793.860648] br0: port 1(dummy0) entered blocking state
[ 1793.860714] br0: port 1(dummy0) entered forwarding state
[ 1794.127215] dummy0: left allmulticast mode
[ 1794.127251] dummy0: left promiscuous mode
[ 1794.127335] br0: port 1(dummy0) entered disabled state