[ 2105.406542][T15301] br0: port 1(dummy0) entered blocking state
[ 2105.406780][T15301] br0: port 1(dummy0) entered disabled state
[ 2105.407011][T15301] dummy0: entered allmulticast mode
[ 2105.408121][T15301] dummy0: entered promiscuous mode
[ 2105.442235][T15302] br0: port 1(dummy0) entered blocking state
[ 2105.442503][T15302] br0: port 1(dummy0) entered forwarding state
[ 2107.836284][   T12] dummy0: left allmulticast mode
[ 2107.837389][   T12] dummy0: left promiscuous mode
[ 2107.837623][   T12] br0: port 1(dummy0) entered disabled state