[ 1805.984958] br0: port 1(dummy0) entered blocking state
[ 1805.985034] br0: port 1(dummy0) entered disabled state
[ 1805.985099] dummy0: entered allmulticast mode
[ 1805.985185] dummy0: entered promiscuous mode
[ 1805.988672] br0: port 1(dummy0) entered blocking state
[ 1805.988703] br0: port 1(dummy0) entered forwarding state
[ 1806.249337] dummy0: left allmulticast mode
[ 1806.249378] dummy0: left promiscuous mode
[ 1806.249411] br0: port 1(dummy0) entered disabled state