Quality-of-service mechanisms for flow-based routers

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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.
Publisher
ELECTRONICS TELECOMMUNICATIONS RESEARCH INST
Issue Date
2008-04
Language
English
Article Type
Article
Keywords

PACKET-SWITCHED NETWORKS; QUEUE; ALGORITHM

Citation

ETRI JOURNAL, v.30, no.2, pp.183 - 193

ISSN
1225-6463
URI
http://hdl.handle.net/10203/91855
Appears in Collection
EE-Journal Papers(저널논문)
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