[ 2004.183142][T15099] br0: port 1(dummy0) entered blocking state
[ 2004.183408][T15099] br0: port 1(dummy0) entered disabled state
[ 2004.183621][T15099] dummy0: entered allmulticast mode
[ 2004.190693][T15099] dummy0: entered promiscuous mode
[ 2004.218699][T15100] br0: port 1(dummy0) entered blocking state
[ 2004.218955][T15100] br0: port 1(dummy0) entered forwarding state
[ 2006.220038][   T12] dummy0: left allmulticast mode
[ 2006.222395][   T12] dummy0: left promiscuous mode
[ 2006.222632][   T12] br0: port 1(dummy0) entered disabled state