[ 2043.739950][T13038] br0: port 1(dummy0) entered blocking state
[ 2043.740135][T13038] br0: port 1(dummy0) entered disabled state
[ 2043.740297][T13038] dummy0: entered allmulticast mode
[ 2043.741148][T13038] dummy0: entered promiscuous mode
[ 2043.773742][T13039] br0: port 1(dummy0) entered blocking state
[ 2043.774405][T13039] br0: port 1(dummy0) entered forwarding state
[ 2045.649881][   T12] dummy0: left allmulticast mode
[ 2045.650070][   T12] dummy0: left promiscuous mode
[ 2045.650291][   T12] br0: port 1(dummy0) entered disabled state