[ 2013.583099][T19354] br0: port 1(dummy0) entered blocking state
[ 2013.583295][T19354] br0: port 1(dummy0) entered disabled state
[ 2013.583450][T19354] dummy0: entered allmulticast mode
[ 2013.584302][T19354] dummy0: entered promiscuous mode
[ 2013.612521][T19355] br0: port 1(dummy0) entered blocking state
[ 2013.612721][T19355] br0: port 1(dummy0) entered forwarding state
[ 2015.568339][   T68] dummy0: left allmulticast mode
[ 2015.569249][   T68] dummy0: left promiscuous mode
[ 2015.569482][   T68] br0: port 1(dummy0) entered disabled state