Abstract: A network testing method implemented in a software-defined network (SDN) is disclosed. The network testing method comprising providing a test scenario including one or more network events, injecting said one or more network events to the SDN using an SDN controller, and gathering network traffic statistics. A network testing apparatus used in a software-defined network (SDN) also is disclosed. The network testing apparatus comprising a testing system to provide a test scenario including one or more network events, to inject said one or more network events to the SDN using an SDN controller, and to gather network traffic statistics. Other methods, apparatuses, and systems also are disclosed.

Abstract: An electric drag strip apparatus is set forth wherein the organization includes the various features associated with the sport of "drag racing". Initially a "burn-out" area is provided wherein a plurality of troughs are positioned on either side of elongate guide slots and electrical contact strips wherein the troughs are filled with a fluid, such as water and the like, to simulate a "burn-out" area in a drag strip. A sequencing light arrangement is positioned at a starting line wherein a plurality of solenoid actuated flags indicate a winner wherein the flags are operated by means of a photo-electric eye positioned at the finish line of the drag strip. Further, a parachute docking arrangement is positioned adjacent and beyond the finish line to secure to an associated miniature car to simulate the analogous event at a drag strip.