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以太网和向量网融合网中QoS控制机制的设计与实现

发表时间:2014-04-30  浏览量:1480  下载量:463
全部作者: 王航,梁满贵
作者单位: 北京交通大学计算机与信息技术学院;北京交通大学信息科学研究所
摘 要: 以一种新型网络体系——向量网为背景,设计以太网环境下的一种按照多优先级进行提前资源预留的服务质量(quality of service, QoS)控制机制。通过区分数据优先级为网络应用提供差异服务,而通过资源预留为网络应用提供绝对的QoS保证。交换设备只记录某一级别的所有会话总预留信息,避免维护单个会话流的状态信息,减少资源预留开销。同时通过引入预留带宽衰减机制,不但解决了资源预留泄漏问题,而且为提高资源利用率提供了条件。最后通过内核编程将其成功部署到向量网等效交换机(equivalent vector switch based on Ethernet, EVSE)中,实验结果验证了QoS机制的可行性和有效性。
关 键 词: 通信网络技术;向量网;等效交换机;服务质量;资源预留
Title: Design and implementation of QoS control mechanism in converged network of Ethernet and vector network
Author: WANG Hang, LIANG Mangui
Organization: School of Computer and Information Technology, Beijing Jiaotong University; Institute of Information Science, Beijing Jiaotong University
Abstract: Setting in a new network architecture of vector network, this paper proposes a mechanism of quality of service (QoS) control in Ethernet, which reserves resource in advance according to the multi-priority. This mechanism provides differential services by distinguishing data priority and guarantees the absolute quality of service by reserving resources. Furthermore, switch facility only records the total reservation information of all sessions at a certain level, which avoids maintaining each class’s status messages, thereby resource reservation cost can be reduced. Meanwhile, by introducing reserved bandwidth’s attenuation scheduling, it not only solves the problem of resource reservation leak, but also provides the conditions for improving resource efficiency. We have successfully deployed it to equivalent vector switch based on Ethernet(EVSE) through kernel programming and demonstrated the feasibility and validity of this QoS mechanism by experiments.
Key words: communication network technology; vector network; equivalent switch; quality of service; resource reservation
发表期数: 2014年4月第8期
引用格式: 王航,梁满贵. 以太网和向量网融合网中QoS控制机制的设计与实现[J]. 中国科技论文在线精品论文,2014,7(8):743-749.
 
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