###
DOI:
Journal of Software:2001.12(5):751-757

QoS映射与自适应协商机制的研究与实现
汤庸,杨学良,区海翔,彭重嘉,汤娜
(中国科学技术大学研究生院计算机科学系,北京 100039;广东工业大学计算机学院,广东广州 510090)
Research and Implementation of QoS Mapping and Adaptive Negotiation Mechanism
TANG Yong,YANG Xue liang,OU Hai xiang,PENG Chong jia,TANG Na
()
Abstract
Chart / table
Reference
Similar Articles
Article :Browse 2528   Download 2579
Received:March 17, 2000    Revised:October 16, 2000
> 中文摘要: TCP/IP协议本身只提供“Best-Effort”级别的服务,而对QoS支持很少.基于此,提出一种基于TCP/IP协议的自适应QoS协商机制,其基本思想是基于资源预留协议RSVP(resource reservation protocol).在提出QoS请求时进行QoS映射,然后启动适应性函数和资源管理函数进行协商,直到获得一组在当前资源状况下最佳的QoS指标为止.然后介绍了应用GQoS实现自适应QoS协商的基本步骤以及重要数据结构和函数.实验结果表明,应用该方法可以根据网络资源的变化,自适应地调整QoS参数.
中文关键词: QoS  QoS协商  自适应  GQoS  TCP/IP
Abstract:TCP/IP protocol only provides services of ‘Best Effort’ level, lacking of the support of QoS. An adaptive QoS negotiation mechanism is proposed in this paper, which relies on RSVP (resource reservation protocol), carries out QoS mapping, starts the adaptability functions and the resource management functions while QoS accepting, and makes negotiate between both sides until a group of QoS values have been achieved. The basic steps of implementation by GQoS, as well as the important data structures and functions are introduced. The experimental results show that by applying the approach the QoS parameters can be adjusted adaptively when the network resources changed.
keywords: QoS  QoS negotiation  adaptability  GQoS  TCP/IP
文章编号:     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(69983007);广东省自然科学基金资助项目(990034) 国家自然科学基金资助项目(69983007);广东省自然科学基金资助项目(990034)
Foundation items:
Reference text:

汤庸,杨学良,区海翔,彭重嘉,汤娜.QoS映射与自适应协商机制的研究与实现.软件学报,2001,12(5):751-757

TANG Yong,YANG Xue liang,OU Hai xiang,PENG Chong jia,TANG Na.Research and Implementation of QoS Mapping and Adaptive Negotiation Mechanism.Journal of Software,2001,12(5):751-757