网络链路状态和服备性能的检测与监控方法的研究

发布时间：2018-06-27 17:06

本文选题：IEEE + 802.1ag协议　；参考：《南京邮电大学》2017年硕士论文

【摘要】：近年来,随着云计算和数据中心的快速发展,以太网技术在电信行业的应用越来越广泛,并逐步向城域网和广域网方面拓展。但以太网最初是为局域网开发的,并没有建立有效的管理和维护机制。为了实现对网络链路状态和服务性能更好的检测与监控,本文基于某通信公司开发项目“福建邮政广域网的需求—Y.1731支持持续性检测”及其软件开发平台,通过研究现有的连通错误检测协议,完成了对以太网链路更好的检测与监控。增加对网络服务性能的持续性检测;设计CFD联动功能;实现对小流量链路的检测与监控,主要工作如下:(1)分析了IEEE 802.1ag协议和Y.1731协议中规定的OAM机制,提出连通错误检测。对比几种常用的网络链路检测方法,得出CFD的高可用性。并对CFD进行了深入的研究和详细的介绍。(2)对CFD协议中定义的网络链路检测功能提出三点优化:一是增加持续性检测,实现对链路服务性能连续不间断的检测;二是设计CFD联动,使得可以通过改变端口状态来实现对链路的自动化管理;三是通过三层子接口对连通错误检测的支持实现对小流量链路的检测,扩展了CFD的应用环境。对优化功能的需求进行详细分析,提出设计方案并进行选择,同时介绍实现过程,对优化前后进行对比。(3)通过主机和设备搭建连通错误检测的测试环境,使用VTP应用软件对文章中提出的优化功能进行验证,并对验证结果进行分析。验证结果表明,连通错误检测已经实现对网络链路服务性能的持续性检测、并且能够根据检测结果来改变端口状态以及支持小流量链路的检测。目前连通错误检测的优化功能已在主流通信公司的路由器设备上应用。
[Abstract]:In recent years, with the rapid development of cloud computing and data center, Ethernet technology is more and more widely used in telecom industry, and gradually expand to metropolitan area network and wide area network. However, Ethernet was originally developed for LAN, and no effective management and maintenance mechanism was established. In order to detect and monitor the network link status and service performance better, based on a communication company development project "Fujian Postal wide area Network (WAN) needs -Y.1731 to support continuous detection" and its software development platform, By studying the existing protocol of connected error detection, the Ethernet link is detected and monitored better. The main work of this paper is as follows: (1) the 802.1ag protocol and Y. 1731 protocol are analyzed, and the connected error detection is proposed. The high availability of CFD is obtained by comparing several commonly used network link detection methods. And the CFD is deeply studied and introduced in detail. (2) the network link detection function defined in CFD protocol is optimized in three aspects: first, increasing continuous detection to realize continuous detection of link service performance; second, designing CFD linkage, The automatic management of the link can be realized by changing the state of the port. Thirdly, the application environment of CFD is extended by the support of the three-layer sub-interface for the connected error detection. The requirement of optimization function is analyzed in detail, the design scheme is put forward and selected, and the realization process is introduced. (3) the test environment of connecting error detection is built through host and equipment. The optimization function proposed in this paper is verified by using VTP application software, and the verification results are analyzed. The verification results show that the connected error detection has realized the continuous detection of the network link service performance, and can change the port state and support the detection of the small traffic link according to the detection results. At present, the optimization function of connection error detection has been applied to the router devices of mainstream communication companies.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.0

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