[ 1930.112189][ T5304] br0: port 1(dummy0) entered blocking state
[ 1930.112376][ T5304] br0: port 1(dummy0) entered disabled state
[ 1930.112534][ T5304] dummy0: entered allmulticast mode
[ 1930.113380][ T5304] dummy0: entered promiscuous mode
[ 1930.135521][ T5305] br0: port 1(dummy0) entered blocking state
[ 1930.135806][ T5305] br0: port 1(dummy0) entered forwarding state
[ 1932.104061][   T66] dummy0: left allmulticast mode
[ 1932.104942][   T66] dummy0: left promiscuous mode
[ 1932.105252][   T66] br0: port 1(dummy0) entered disabled state