[   48.901184] br0: port 1(dummy0) entered blocking state
[   48.901281] br0: port 1(dummy0) entered disabled state
[   48.901368] dummy0: entered allmulticast mode
[   48.901459] dummy0: entered promiscuous mode
[   48.905119] br0: port 1(dummy0) entered blocking state
[   48.905175] br0: port 1(dummy0) entered forwarding state
[   49.143927] dummy0: left allmulticast mode
[   49.143973] dummy0: left promiscuous mode
[   49.144003] br0: port 1(dummy0) entered disabled state