[ 1715.429960] br0: port 1(dummy0) entered blocking state
[ 1715.430042] br0: port 1(dummy0) entered disabled state
[ 1715.430107] dummy0: entered allmulticast mode
[ 1715.430200] dummy0: entered promiscuous mode
[ 1715.433520] br0: port 1(dummy0) entered blocking state
[ 1715.433553] br0: port 1(dummy0) entered forwarding state
[ 1715.657887] dummy0: left allmulticast mode
[ 1715.657924] dummy0: left promiscuous mode
[ 1715.657954] br0: port 1(dummy0) entered disabled state