[ 1772.842907] br0: port 1(dummy0) entered blocking state
[ 1772.842989] br0: port 1(dummy0) entered disabled state
[ 1772.843058] dummy0: entered allmulticast mode
[ 1772.843143] dummy0: entered promiscuous mode
[ 1772.846963] br0: port 1(dummy0) entered blocking state
[ 1772.846997] br0: port 1(dummy0) entered forwarding state
[ 1773.104873] dummy0: left allmulticast mode
[ 1773.104902] dummy0: left promiscuous mode
[ 1773.104941] br0: port 1(dummy0) entered disabled state