[ 2169.225711][T16327] br0: port 1(dummy0) entered blocking state
[ 2169.225952][T16327] br0: port 1(dummy0) entered disabled state
[ 2169.226538][T16327] dummy0: entered allmulticast mode
[ 2169.227523][T16327] dummy0: entered promiscuous mode
[ 2169.256113][T16328] br0: port 1(dummy0) entered blocking state
[ 2169.256311][T16328] br0: port 1(dummy0) entered forwarding state
[ 2171.693013][   T12] dummy0: left allmulticast mode
[ 2171.693219][   T12] dummy0: left promiscuous mode
[ 2171.693463][   T12] br0: port 1(dummy0) entered disabled state