- Rendezvous among experiment entities appear in network experiments both implicitly and explicitly. When the driving system for a network experiment testbed supports such rendezvous, users are free to focus on the content of the experiments, without having to consider details of the rendezvous (conditions, timing, etc.) and their execution. This paper shows typical entity activities in network experiments, especially rendezvous, and presents our approach in the Kuroyuri network experiment driving program.