[ 2297.904921][T19496] br0: port 1(dummy0) entered blocking state
[ 2297.905266][T19496] br0: port 1(dummy0) entered disabled state
[ 2297.905613][T19496] dummy0: entered allmulticast mode
[ 2297.906769][T19496] dummy0: entered promiscuous mode
[ 2297.933256][T19497] br0: port 1(dummy0) entered blocking state
[ 2297.933843][T19497] br0: port 1(dummy0) entered forwarding state
[ 2300.290356][   T68] dummy0: left allmulticast mode
[ 2300.291268][   T68] dummy0: left promiscuous mode
[ 2300.291598][   T68] br0: port 1(dummy0) entered disabled state