[ 1916.407745][ T8104] br0: port 1(dummy0) entered blocking state
[ 1916.407936][ T8104] br0: port 1(dummy0) entered disabled state
[ 1916.408095][ T8104] dummy0: entered allmulticast mode
[ 1916.409402][ T8104] dummy0: entered promiscuous mode
[ 1916.439931][ T8105] br0: port 1(dummy0) entered blocking state
[ 1916.440177][ T8105] br0: port 1(dummy0) entered forwarding state
[ 1918.328220][   T68] dummy0: left allmulticast mode
[ 1918.328970][   T68] dummy0: left promiscuous mode
[ 1918.329194][   T68] br0: port 1(dummy0) entered disabled state