應用時間權杖概念於差別性服務等候機制佇列空間配置之研究

A Study on Queuing Buffer Allocation in a Differentiated Service Queuing Scheme with Time Token Concept

傅振華(Chen-Hua Fu) ； 鍾明宏(Ming-Hung Chung) ； 吳漢章(Han-Chang Wu)

《國防管理學術暨實務研討會》 第十九屆 (2011/06) Pp. 405-428

https://doi.org/10.29497/GFGL.201106.0405

摘要

本研究探討導入時間權杖概念於差別性服務等候機制，使原本靜態之時間權杖分配及獲得方式，得以依照網路上各優先等級不同的封包流量，動態的予以調整。依照網路即時狀況，動態的調整時間權杖計算方式，在不違背差別性服務的原則下，增加網路資源的可利用率，並提高整體效能。在一般狀態下，本研究之設計仍保有時間權杖差別性服務之運作模式，提供不同等級的封包優先權順序不同之差別性的服務；而當網路環境轉變為以低優先權封包流量為主時，將提供調節功能，放寬低優先權封包進入佇列的門檻，減少低優先權封包時閃、延遲與遺失率等指標，提升傳輸量，使邏輯上保留給高優先權封包的頻寬資源，適時開放給低優先權封包使用，提升網路效能。

關鍵字

服務品質 ； 時間權杖 ； 差別性服務

並列摘要

This study into the concept of the Time Token Wait a differentiated service mechanism. So that the original time of static allocation and access token means. In accordance with the priority on the network to a different level of packet traffic to be dynamically adjusted. Real-time status in accordance with the network dynamically adjust the calculation of the time token, without violating the principle of differentiated services to increase the availability of network resources, and improve overall performance.Under normal conditions, this study design still retains the time of Token mode of operation of different services to provide different levels of different packets in a different order of priority of service; and when the network environment into a low priority packet flow The Lord, will provide the regulatory function, to relax the low priority packets queued threshold, when the flash to reduce low-priority packet delay and packet loss and other indicators to improve transmission capacity, so logically reserved for high-priority packet bandwidth Resources, timely and open to the use of low-priority packet to improve network performance..

並列關鍵字

Quality of Service ； Time Token ； Differentiated Service