[ 1788.992214] br0: port 1(dummy0) entered blocking state
[ 1788.992288] br0: port 1(dummy0) entered disabled state
[ 1788.992352] dummy0: entered allmulticast mode
[ 1788.992439] dummy0: entered promiscuous mode
[ 1788.994934] br0: port 1(dummy0) entered blocking state
[ 1788.994972] br0: port 1(dummy0) entered forwarding state
[ 1789.184975] dummy0: left allmulticast mode
[ 1789.185039] dummy0: left promiscuous mode
[ 1789.185077] br0: port 1(dummy0) entered disabled state