[ 2280.923648][ T6764] br0: port 1(dummy0) entered blocking state
[ 2280.923835][ T6764] br0: port 1(dummy0) entered disabled state
[ 2280.923995][ T6764] dummy0: entered allmulticast mode
[ 2280.932894][ T6764] dummy0: entered promiscuous mode
[ 2280.958653][ T6765] br0: port 1(dummy0) entered blocking state
[ 2280.958905][ T6765] br0: port 1(dummy0) entered forwarding state
[ 2282.948780][   T12] dummy0: left allmulticast mode
[ 2282.949704][   T12] dummy0: left promiscuous mode
[ 2282.950347][   T12] br0: port 1(dummy0) entered disabled state