[ 2122.722615][T19373] br0: port 1(dummy0) entered blocking state
[ 2122.723285][T19373] br0: port 1(dummy0) entered disabled state
[ 2122.723450][T19373] dummy0: entered allmulticast mode
[ 2122.724311][T19373] dummy0: entered promiscuous mode
[ 2122.753607][T19374] br0: port 1(dummy0) entered blocking state
[ 2122.753786][T19374] br0: port 1(dummy0) entered forwarding state
[ 2124.767665][   T12] dummy0: left allmulticast mode
[ 2124.768656][   T12] dummy0: left promiscuous mode
[ 2124.768969][   T12] br0: port 1(dummy0) entered disabled state