在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法

王榮; 陳越; 鄔江興

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在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法

王榮, 陳越, 鄔江興

文章導(dǎo)航 > 電子與信息學(xué)報 > 2006 > 28(5): 805-809

王榮, 陳越, 鄔江興. 在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法[J]. 電子與信息學(xué)報, 2006, 28(5): 805-809.

引用本文:

王榮, 陳越, 鄔江興. 在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法[J]. 電子與信息學(xué)報, 2006, 28(5): 805-809.

Wang Rong, Chen Yue, Wu Jiang-xing. Implementing Distributed Weighted Fair Scheduling Algorithm in CICQ Switches[J]. Journal of Electronics & Information Technology, 2006, 28(5): 805-809.

Citation:

Wang Rong, Chen Yue, Wu Jiang-xing. Implementing Distributed Weighted Fair Scheduling Algorithm in CICQ Switches[J]. Journal of Electronics & Information Technology, 2006, 28(5): 805-809.

王榮, 陳越, 鄔江興. 在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法[J]. 電子與信息學(xué)報, 2006, 28(5): 805-809.

引用本文:

王榮, 陳越, 鄔江興. 在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法[J]. 電子與信息學(xué)報, 2006, 28(5): 805-809.

Wang Rong, Chen Yue, Wu Jiang-xing. Implementing Distributed Weighted Fair Scheduling Algorithm in CICQ Switches[J]. Journal of Electronics & Information Technology, 2006, 28(5): 805-809.

Citation:

Wang Rong, Chen Yue, Wu Jiang-xing. Implementing Distributed Weighted Fair Scheduling Algorithm in CICQ Switches[J]. Journal of Electronics & Information Technology, 2006, 28(5): 805-809.

在CICQ交換結(jié)構(gòu)下實現(xiàn)分布式的WFQ類加權(quán)公平調(diào)度算法

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出版歷程
- 收稿日期: 2004-10-14
- 修回日期: 2005-04-07
- 刊出日期: 2006-05-19

Implementing Distributed Weighted Fair Scheduling Algorithm in CICQ Switches

摘要

摘要: 傳統(tǒng)的基于crossbar的輸入排隊交換結(jié)構(gòu)在提供良好的QoS方面存在很大的不足，而CICQ(Combined Input and Crosspoint buffered Queuing)交換結(jié)構(gòu)與傳統(tǒng)的交換結(jié)構(gòu)相比，不但能在各種輸入流下提供接近輸出排隊的吞吐率，而且能提供良好的QoS支持。該文基于CICQ結(jié)構(gòu)，提出了在輸入排隊條件下實現(xiàn)基于流的分布式WFQ類分組公平調(diào)度算法的方案，并通過仿真驗證了這一方案的有效性。
- CICQ交換結(jié)構(gòu);WFQ類調(diào)度算法;輸入排隊
Abstract: Traditional input-queued switches based on crossbar are insufficient in providing good QoS performance. As a contrast, the CICQ(Combined Input and Cross-point buffered Queuing) switches can provide almost 100% throughput under different input traffic, the performance of which is very close to the OQ(Output-Queued) switch, and has the potentials to support good QoS. Based on the CICQ switches, a new scheme is put forward, which can realize distributed weighted fair schedule for the packets of variable length, and have both the scalability of input-queued switches and QoS performance of output-queued switches. The issue of updating the virtual time of back-pressured queues is also discussed. Simulation results show the scheme is very effective and has good performance.