本文選題：IEEE + 802.1ag協(xié)議　； 參考：《南京郵電大學(xué)》2017年碩士論文

【摘要】：近年來(lái),隨著云計(jì)算和數(shù)據(jù)中心的快速發(fā)展,以太網(wǎng)技術(shù)在電信行業(yè)的應(yīng)用越來(lái)越廣泛,并逐步向城域網(wǎng)和廣域網(wǎng)方面拓展。但以太網(wǎng)最初是為局域網(wǎng)開(kāi)發(fā)的,并沒(méi)有建立有效的管理和維護(hù)機(jī)制。為了實(shí)現(xiàn)對(duì)網(wǎng)絡(luò)鏈路狀態(tài)和服務(wù)性能更好的檢測(cè)與監(jiān)控,本文基于某通信公司開(kāi)發(fā)項(xiàng)目“福建郵政廣域網(wǎng)的需求—Y.1731支持持續(xù)性檢測(cè)”及其軟件開(kāi)發(fā)平臺(tái),通過(guò)研究現(xiàn)有的連通錯(cuò)誤檢測(cè)協(xié)議,完成了對(duì)以太網(wǎng)鏈路更好的檢測(cè)與監(jiān)控。增加對(duì)網(wǎng)絡(luò)服務(wù)性能的持續(xù)性檢測(cè);設(shè)計(jì)CFD聯(lián)動(dòng)功能;實(shí)現(xiàn)對(duì)小流量鏈路的檢測(cè)與監(jiān)控,主要工作如下:(1)分析了IEEE 802.1ag協(xié)議和Y.1731協(xié)議中規(guī)定的OAM機(jī)制,提出連通錯(cuò)誤檢測(cè)。對(duì)比幾種常用的網(wǎng)絡(luò)鏈路檢測(cè)方法,得出CFD的高可用性。并對(duì)CFD進(jìn)行了深入的研究和詳細(xì)的介紹。(2)對(duì)CFD協(xié)議中定義的網(wǎng)絡(luò)鏈路檢測(cè)功能提出三點(diǎn)優(yōu)化:一是增加持續(xù)性檢測(cè),實(shí)現(xiàn)對(duì)鏈路服務(wù)性能連續(xù)不間斷的檢測(cè);二是設(shè)計(jì)CFD聯(lián)動(dòng),使得可以通過(guò)改變端口狀態(tài)來(lái)實(shí)現(xiàn)對(duì)鏈路的自動(dòng)化管理;三是通過(guò)三層子接口對(duì)連通錯(cuò)誤檢測(cè)的支持實(shí)現(xiàn)對(duì)小流量鏈路的檢測(cè),擴(kuò)展了CFD的應(yīng)用環(huán)境。對(duì)優(yōu)化功能的需求進(jìn)行詳細(xì)分析,提出設(shè)計(jì)方案并進(jìn)行選擇,同時(shí)介紹實(shí)現(xiàn)過(guò)程,對(duì)優(yōu)化前后進(jìn)行對(duì)比。(3)通過(guò)主機(jī)和設(shè)備搭建連通錯(cuò)誤檢測(cè)的測(cè)試環(huán)境,使用VTP應(yīng)用軟件對(duì)文章中提出的優(yōu)化功能進(jìn)行驗(yàn)證,并對(duì)驗(yàn)證結(jié)果進(jìn)行分析。驗(yàn)證結(jié)果表明,連通錯(cuò)誤檢測(cè)已經(jīng)實(shí)現(xiàn)對(duì)網(wǎng)絡(luò)鏈路服務(wù)性能的持續(xù)性檢測(cè)、并且能夠根據(jù)檢測(cè)結(jié)果來(lái)改變端口狀態(tài)以及支持小流量鏈路的檢測(cè)。目前連通錯(cuò)誤檢測(cè)的優(yōu)化功能已在主流通信公司的路由器設(shè)備上應(yīng)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.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TP393.0

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