[ 1868.891509][  T695] br0: port 1(dummy0) entered blocking state
[ 1868.891695][  T695] br0: port 1(dummy0) entered disabled state
[ 1868.891859][  T695] dummy0: entered allmulticast mode
[ 1868.893203][  T695] dummy0: entered promiscuous mode
[ 1868.915102][  T696] br0: port 1(dummy0) entered blocking state
[ 1868.915511][  T696] br0: port 1(dummy0) entered forwarding state
[ 1870.773256][   T12] dummy0: left allmulticast mode
[ 1870.773409][   T12] dummy0: left promiscuous mode
[ 1870.773604][   T12] br0: port 1(dummy0) entered disabled state