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학술지 Quality-of-Service Mechanisms for Flow-Based Routers
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저자
고남석, 홍성백, 이경호, 박홍식, 김남
발행일
200804
출처
ETRI Journal, v.30 no.2, pp.183-193
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.08.1107.0014
협약과제
07MT2700, AII IPv6 기반 Fixed-Mobile Convergence 네트워킹 기술 개발, 홍성백
초록
In this paper, we propose quality of service mechanisms for flow-based routers which have to handle several million flows at wire speed in high-speed networks. Traffic management mechanisms are proposed for guaranteed traffic and non-guaranteed traffic separately, and then the effective harmonization of the two mechanisms is introduced for real networks in which both traffic types are mixed together. A simple non-work-conserving fair queuing algorithm is proposed for guaranteed traffic, and an adaptive flow-based random early drop algorithm is proposed for non-guaranteed traffic. Based on that basic architecture, we propose a dynamic traffic identification method to dynamically prioritize traffic according to the traffic characteristics of applications. In a high-speed router system, the dynamic traffic identification method could be a good alternative to deep packet inspection, which requires handling of the IP packet header and payload. Through numerical analysis, simulation, and a real system experiment, we demonstrate the performance of the proposed mechanisms.
키워드
DiffServ, Dynamic flow identification, Fow-based router, IntServ, Packet scheduling, Quality-of-service (QoS)
KSP 제안 키워드
Dynamic flow, Flow identification, Flow-based, Guaranteed Traffic, High speed network, IP packet, Identification method, Numerical Analysis, Packet scheduling, Quality of Service mechanisms, Queuing algorithm