[  394.577749] br0: port 1(dummy0) entered blocking state
[  394.582896] br0: port 1(dummy0) entered disabled state
[  394.588222] device dummy0 entered promiscuous mode
[  394.653973] br0: port 1(dummy0) entered blocking state
[  394.659105] br0: port 1(dummy0) entered forwarding state
[  394.898831] br0: port 1(dummy0) entered disabled state
[  395.001255] device dummy0 left promiscuous mode
[  395.005835] br0: port 1(dummy0) entered disabled state