[ 1813.330701] br0: port 1(dummy0) entered blocking state
[ 1813.330735] br0: port 1(dummy0) entered disabled state
[ 1813.330771] dummy0: entered allmulticast mode
[ 1813.330830] dummy0: entered promiscuous mode
[ 1813.333690] br0: port 1(dummy0) entered blocking state
[ 1813.333753] br0: port 1(dummy0) entered forwarding state
[ 1813.534831] dummy0: left allmulticast mode
[ 1813.534862] dummy0: left promiscuous mode
[ 1813.534891] br0: port 1(dummy0) entered disabled state