[ 1876.447772][T24362] br0: port 1(dummy0) entered blocking state
[ 1876.447982][T24362] br0: port 1(dummy0) entered disabled state
[ 1876.448174][T24362] dummy0: entered allmulticast mode
[ 1876.449354][T24362] dummy0: entered promiscuous mode
[ 1876.483973][T24363] br0: port 1(dummy0) entered blocking state
[ 1876.484221][T24363] br0: port 1(dummy0) entered forwarding state
[ 1878.329352][   T12] dummy0: left allmulticast mode
[ 1878.329634][   T12] dummy0: left promiscuous mode
[ 1878.329850][   T12] br0: port 1(dummy0) entered disabled state