[ 1627.392749] br0: port 1(dummy0) entered blocking state
[ 1627.392794] br0: port 1(dummy0) entered disabled state
[ 1627.392825] dummy0: entered allmulticast mode
[ 1627.392884] dummy0: entered promiscuous mode
[ 1627.395718] br0: port 1(dummy0) entered blocking state
[ 1627.395752] br0: port 1(dummy0) entered forwarding state
[ 1627.604201] dummy0: left allmulticast mode
[ 1627.604287] dummy0: left promiscuous mode
[ 1627.604353] br0: port 1(dummy0) entered disabled state