[  121.176539] br0: port 1(dummy0) entered blocking state
[  121.176599] br0: port 1(dummy0) entered disabled state
[  121.176637] dummy0: entered allmulticast mode
[  121.176692] dummy0: entered promiscuous mode
[  121.180054] br0: port 1(dummy0) entered blocking state
[  121.180094] br0: port 1(dummy0) entered forwarding state
[  121.422766] dummy0: left allmulticast mode
[  121.422809] dummy0: left promiscuous mode
[  121.422845] br0: port 1(dummy0) entered disabled state