本文選題：波分復(fù)用 + SDH��； 參考：《上海交通大學(xué)》2014年碩士論文

【摘要】：WDM技術(shù)是當(dāng)前骨干傳輸光網(wǎng)絡(luò)采用的基本技術(shù),按網(wǎng)絡(luò)節(jié)點(diǎn)劃分有復(fù)用/解復(fù)用終端、中繼放大和光分插復(fù)用節(jié)點(diǎn)等。其中復(fù)用/解復(fù)用終端和光分插復(fù)用節(jié)點(diǎn)的每個(gè)波長(zhǎng)接口都連接一塊具有波長(zhǎng)適配功能的業(yè)務(wù)板卡,該板卡實(shí)現(xiàn)客戶數(shù)據(jù)信號(hào)從客戶側(cè)到線路側(cè)的波長(zhǎng)適配,也兼顧實(shí)現(xiàn)客戶側(cè)低速業(yè)務(wù)到線路側(cè)高速標(biāo)準(zhǔn)封裝數(shù)據(jù)的匯聚。在波分復(fù)用系統(tǒng)中,業(yè)務(wù)板卡和其他波分系統(tǒng)板卡的數(shù)量比接近n:1(n為復(fù)用波長(zhǎng)數(shù)目,波長(zhǎng)數(shù)目越多越接近),因此對(duì)其的測(cè)試占據(jù)了整個(gè)WDM設(shè)備測(cè)試任務(wù)的很大部分。而業(yè)務(wù)板卡的測(cè)試儀表又是極其昂貴的,成本占整個(gè)系統(tǒng)測(cè)試成本的絕大部分。在當(dāng)前全球網(wǎng)絡(luò)運(yùn)營(yíng)商不斷降低單位比特投資的大環(huán)境下,設(shè)備供應(yīng)商通過降低成本提升競(jìng)爭(zhēng)力變得更加迫切。測(cè)試儀表歷來都是固定成本的很大一塊,傳統(tǒng)的自動(dòng)化測(cè)試中儀表的平均使用率很難超過20%,可見如果能把儀表使用率提升到40%以上,成本便能下降至少一半。傳統(tǒng)的自動(dòng)化測(cè)試平臺(tái)是本地單機(jī)模式的,每個(gè)測(cè)試平臺(tái)有一臺(tái)電腦作為控制器,把所有測(cè)試儀表連接控制起來,在計(jì)算機(jī)上運(yùn)行自動(dòng)化測(cè)試代碼來完成測(cè)試。測(cè)試項(xiàng)目串行執(zhí)行,執(zhí)行測(cè)試項(xiàng)A時(shí)其它測(cè)試項(xiàng)的測(cè)試儀表便處于空閑等待狀態(tài)。這種模式的好處是控制簡(jiǎn)單,實(shí)現(xiàn)和維護(hù)方便。缺點(diǎn)也顯而易見,那就是昂貴的測(cè)試設(shè)備在大多時(shí)刻是空閑的——造成巨大的浪費(fèi)。本文通過構(gòu)建一個(gè)WDM設(shè)備共享測(cè)試服務(wù)器的實(shí)例,來滿足多用戶的測(cè)試需求,達(dá)到最大化共享測(cè)試儀表的目的。不同的用戶只需要在客戶端的測(cè)試界面提交自己的測(cè)試需求,測(cè)試服務(wù)器接收到多個(gè)用戶測(cè)試需求后,運(yùn)行競(jìng)爭(zhēng)算法,獲得無沖突并行測(cè)試組,執(zhí)行多用戶不同測(cè)試用例的并行測(cè)試。按照這種思想可以分別開發(fā)服務(wù)器端和客戶端自動(dòng)測(cè)試程序:服務(wù)器接受來自不同用戶的申請(qǐng),根據(jù)預(yù)設(shè)的仲裁算法,分配資源,執(zhí)行測(cè)試并返送測(cè)試結(jié)果到客戶端;客戶端維護(hù)各自的測(cè)試用例列表,發(fā)出測(cè)試請(qǐng)求,處理測(cè)試數(shù)據(jù)并生成測(cè)試報(bào)告。本文首先介紹波分復(fù)用設(shè)備及其自動(dòng)化測(cè)試系統(tǒng)發(fā)展;然后提出改進(jìn)型的自動(dòng)共享測(cè)試服務(wù)器,介紹其軟硬件架構(gòu)以及服務(wù)器核心的競(jìng)爭(zhēng)算法;最后介紹一個(gè)基于作者單位測(cè)試單元及儀表資源的簡(jiǎn)單服務(wù)器/客戶端實(shí)現(xiàn)。希望本文能為其它需要開發(fā)自動(dòng)共享測(cè)試服務(wù)器的同行提供一種思路和參考。
[Abstract]:WDM technology is the basic technology used in the backbone transmission optical network at present. There are multiplexing / demultiplexing terminals relay amplification and optical add / drop multiplexing nodes according to the network nodes. Each wavelength interface of the multiplexing / demultiplexing terminal and the optical demultiplexing node is connected to a service card with wavelength adaptation function, which realizes the wavelength adaptation of the customer data signal from the client side to the line side. At the same time, to achieve the client-side low-speed service to line-side high-speed standard packaging data convergence. In wavelength division multiplexing system, the number of service cards and other wave sub-system cards is close to n: 1 (n is the number of multiplexed wavelengths, the more wavelengths are closer), so the testing of the service boards occupies a large part of the whole WDM device testing task. The test instrument of the service card is extremely expensive, and the cost accounts for most of the cost of the whole system test. In the current global network operators to reduce the unit bit investment environment, equipment suppliers by reducing costs to enhance competitiveness become more urgent. The test instrument is always a large part of fixed cost, the average utilization rate of the instrument is difficult to exceed 20% in the traditional automatic test, so if the instrument utilization rate can be increased to more than 40%, the cost can be reduced by at least half. The traditional automated test platform is local single-machine mode, each test platform has a computer as a controller, all the test instruments are connected and controlled, and the automation test code is run on the computer to complete the test. The test item is executed serially, and the test instrument of the other test item is idle when the test item A is executed. The advantages of this model are simple control, easy implementation and maintenance. The drawback, too, is that expensive test equipment is idle most of the time-a huge waste. In this paper, an example of WDM device sharing test server is constructed to meet the test requirements of multi-users and to maximize the sharing of test instruments. Different users only need to submit their own test requirements in the client test interface. After receiving more than one user test requirement, the test server runs a competitive algorithm to obtain a conflict-free parallel test group. Perform parallel tests with different test cases for multiple users. According to this idea, we can develop the automatic test program on the server side and the client side: the server accepts the application from different users, according to the default arbitration algorithm, allocates the resources, executes the test and sends back the test result to the client; Clients maintain their test case lists, issue test requests, process test data and generate test reports. This paper first introduces the development of wavelength division multiplexing equipment and its automatic test system, then proposes an improved automatic shared test server, and introduces its hardware and software architecture and the core competition algorithm of the server. Finally, a simple server / client implementation based on author unit test unit and instrument resource is introduced. It is hoped that this paper can provide a kind of thinking and reference for other peers who need to develop automatic shared test server.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.1

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