[  811.015637] br0: port 1(dummy0) entered blocking state
[  811.015689] br0: port 1(dummy0) entered disabled state
[  811.015722] dummy0: entered allmulticast mode
[  811.015772] dummy0: entered promiscuous mode
[  811.018528] br0: port 1(dummy0) entered blocking state
[  811.018558] br0: port 1(dummy0) entered forwarding state
[  811.212161] dummy0: left allmulticast mode
[  811.212229] dummy0: left promiscuous mode
[  811.212291] br0: port 1(dummy0) entered disabled state