[ 1829.392341][ T9811] br0: port 1(dummy0) entered blocking state
[ 1829.392551][ T9811] br0: port 1(dummy0) entered disabled state
[ 1829.392726][ T9811] dummy0: entered allmulticast mode
[ 1829.394093][ T9811] dummy0: entered promiscuous mode
[ 1829.420846][ T9812] br0: port 1(dummy0) entered blocking state
[ 1829.421090][ T9812] br0: port 1(dummy0) entered forwarding state
[ 1831.183923][   T69] dummy0: left allmulticast mode
[ 1831.184208][   T69] dummy0: left promiscuous mode
[ 1831.184421][   T69] br0: port 1(dummy0) entered disabled state