[ 2135.182050][ T9287] br0: port 1(dummy0) entered blocking state
[ 2135.182732][ T9287] br0: port 1(dummy0) entered disabled state
[ 2135.182899][ T9287] dummy0: entered allmulticast mode
[ 2135.183740][ T9287] dummy0: entered promiscuous mode
[ 2135.211737][ T9288] br0: port 1(dummy0) entered blocking state
[ 2135.212505][ T9288] br0: port 1(dummy0) entered forwarding state
[ 2137.438124][   T69] dummy0: left allmulticast mode
[ 2137.440018][   T69] dummy0: left promiscuous mode
[ 2137.440319][   T69] br0: port 1(dummy0) entered disabled state