[  441.767211] br0: port 1(dummy0) entered blocking state
[  441.767587] br0: port 1(dummy0) entered disabled state
[  441.767999] device dummy0 entered promiscuous mode
[  441.827339] br0: port 1(dummy0) entered blocking state
[  441.827732] br0: port 1(dummy0) entered forwarding state
[  442.031682] br0: port 1(dummy0) entered disabled state
[  442.124208] device dummy0 left promiscuous mode
[  442.124579] br0: port 1(dummy0) entered disabled state