[ 1799.637216] br0: port 1(dummy0) entered blocking state
[ 1799.637295] br0: port 1(dummy0) entered disabled state
[ 1799.637361] dummy0: entered allmulticast mode
[ 1799.637449] dummy0: entered promiscuous mode
[ 1799.640367] br0: port 1(dummy0) entered blocking state
[ 1799.640431] br0: port 1(dummy0) entered forwarding state
[ 1799.830141] dummy0: left allmulticast mode
[ 1799.830177] dummy0: left promiscuous mode
[ 1799.830211] br0: port 1(dummy0) entered disabled state