[ 2243.285479][ T8824] br0: port 1(dummy0) entered blocking state
[ 2243.285795][ T8824] br0: port 1(dummy0) entered disabled state
[ 2243.286075][ T8824] dummy0: entered allmulticast mode
[ 2243.287290][ T8824] dummy0: entered promiscuous mode
[ 2243.314385][ T8825] br0: port 1(dummy0) entered blocking state
[ 2243.314967][ T8825] br0: port 1(dummy0) entered forwarding state
[ 2245.851817][   T71] dummy0: left allmulticast mode
[ 2245.852915][   T71] dummy0: left promiscuous mode
[ 2245.853235][   T71] br0: port 1(dummy0) entered disabled state