In this paper we identify the challenges and open issues involved in providing quality-of-service (QOS) guarantees to sessions in a high-speed wide area network and briefly survey research in this area. Four approaches towards providing QOS guarantees are described and discussed: the tightly controlled approach, the approximate approach, the bounding approach, and the observation-based approach.
/lp/association-for-computing-machinery/open-issues-and-challenges-in-providing-quality-of-service-guarantees-MLu9jjXDay