[ 1712.905532][T10799] br0: port 1(dummy0) entered blocking state
[ 1712.905669][T10799] br0: port 1(dummy0) entered disabled state
[ 1712.905776][T10799] dummy0: entered allmulticast mode
[ 1712.906270][T10799] dummy0: entered promiscuous mode
[ 1712.919135][T10800] br0: port 1(dummy0) entered blocking state
[ 1712.919290][T10800] br0: port 1(dummy0) entered forwarding state
[ 1714.064135][   T12] dummy0: left allmulticast mode
[ 1714.064316][   T12] dummy0: left promiscuous mode
[ 1714.064528][   T12] br0: port 1(dummy0) entered disabled state