[ 1714.607775][T16007] br0: port 1(dummy0) entered blocking state
[ 1714.607956][T16007] br0: port 1(dummy0) entered disabled state
[ 1714.608118][T16007] dummy0: entered allmulticast mode
[ 1714.608690][T16007] dummy0: entered promiscuous mode
[ 1714.626419][T16008] br0: port 1(dummy0) entered blocking state
[ 1714.626577][T16008] br0: port 1(dummy0) entered forwarding state
[ 1715.820612][   T12] dummy0: left allmulticast mode
[ 1715.820785][   T12] dummy0: left promiscuous mode
[ 1715.820985][   T12] br0: port 1(dummy0) entered disabled state