[ 1967.670472][T19894] br0: port 1(dummy0) entered blocking state
[ 1967.670937][T19894] br0: port 1(dummy0) entered disabled state
[ 1967.671162][T19894] dummy0: entered allmulticast mode
[ 1967.672140][T19894] dummy0: entered promiscuous mode
[ 1967.694614][T19895] br0: port 1(dummy0) entered blocking state
[ 1967.694967][T19895] br0: port 1(dummy0) entered forwarding state
[ 1969.718312][   T12] dummy0: left allmulticast mode
[ 1969.718490][   T12] dummy0: left promiscuous mode
[ 1969.718704][   T12] br0: port 1(dummy0) entered disabled state