區(qū)分服務(wù)網(wǎng)絡(luò)中的TCP友好公平體系
A TCP friendly fairness architecture for DS IP networks
-
摘要: 區(qū)分服務(wù)(Differentiated Services)是IETF為實現(xiàn)IP服務(wù)質(zhì)量(QoS)而定義的一個體系結(jié)構(gòu)。研究表明,在該體系中存在不公平問題,該文將TCP友好(TCP Friendly)的概念引入到DS網(wǎng)絡(luò)中,并定義了DS網(wǎng)絡(luò)中的TCP友好的公平性,仿真驗證了目前IETF定義的流量調(diào)節(jié)(TrafficConditioning)以及丟包策略等機制不能很好地實現(xiàn)TCP友好公平性,因而提出了直接擁塞控制機制來實現(xiàn)這一公平性。
-
關(guān)鍵詞:
- 服務(wù)質(zhì)量; 區(qū)分服務(wù); TCP友好; 公平性
Abstract: Differentiated Services(DS) architecture has been proposed by IETF to implement QoS in IP networks. However, research shows that there exists unfairness in DS network. This paper introduces the TCP friendly concept into DS network and defines TCP friendly fairness in DS architecture. Elaborate simulations are used to verify that current mechanisms in DS cannot guarantee the TCP friendly fairness; therefore, direct congestion control scheme is proposed to achieve the TCP friendly fairness. -
計量
- 文章訪問數(shù): 2198
- HTML全文瀏覽量: 108
- PDF下載量: 467
- 被引次數(shù): 0