[  383.221846] br0: port 1(dummy0) entered blocking state
[  383.221856] br0: port 1(dummy0) entered disabled state
[  383.221981] device dummy0 entered promiscuous mode
[  383.257542] br0: port 1(dummy0) entered blocking state
[  383.257547] br0: port 1(dummy0) entered forwarding state
[  383.391124] br0: port 1(dummy0) entered disabled state
[  383.448808] device dummy0 left promiscuous mode
[  383.448846] br0: port 1(dummy0) entered disabled state