[ 1975.714816][T28892] br0: port 1(dummy0) entered blocking state
[ 1975.714998][T28892] br0: port 1(dummy0) entered disabled state
[ 1975.715160][T28892] dummy0: entered allmulticast mode
[ 1975.716157][T28892] dummy0: entered promiscuous mode
[ 1975.741287][T28893] br0: port 1(dummy0) entered blocking state
[ 1975.741529][T28893] br0: port 1(dummy0) entered forwarding state
[ 1977.688318][   T68] dummy0: left allmulticast mode
[ 1977.689493][   T68] dummy0: left promiscuous mode
[ 1977.689875][   T68] br0: port 1(dummy0) entered disabled state