[ 2036.542609][T16912] br0: port 1(dummy0) entered blocking state
[ 2036.542835][T16912] br0: port 1(dummy0) entered disabled state
[ 2036.543015][T16912] dummy0: entered allmulticast mode
[ 2036.543934][T16912] dummy0: entered promiscuous mode
[ 2036.597914][T16913] br0: port 1(dummy0) entered blocking state
[ 2036.598251][T16913] br0: port 1(dummy0) entered forwarding state
[ 2039.170226][   T12] dummy0: left allmulticast mode
[ 2039.170529][   T12] dummy0: left promiscuous mode
[ 2039.170967][   T12] br0: port 1(dummy0) entered disabled state