[ 1831.228325][ T5258] br0: port 1(dummy0) entered blocking state
[ 1831.228932][ T5258] br0: port 1(dummy0) entered disabled state
[ 1831.229153][ T5258] dummy0: entered allmulticast mode
[ 1831.230149][ T5258] dummy0: entered promiscuous mode
[ 1831.262043][ T5259] br0: port 1(dummy0) entered blocking state
[ 1831.262260][ T5259] br0: port 1(dummy0) entered forwarding state
[ 1833.001570][   T69] dummy0: left allmulticast mode
[ 1833.001729][   T69] dummy0: left promiscuous mode
[ 1833.001942][   T69] br0: port 1(dummy0) entered disabled state