本文選題：雙冗余以太網(wǎng) + 可靠性　； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：以太網(wǎng)傳輸速度高、安裝容易、兼容性好,而且?guī)缀踔С炙谐Ｓ玫木W(wǎng)絡(luò)協(xié)議,多年來得到廣泛應(yīng)用,也逐漸推廣到一些惡劣和極端環(huán)境下的通信任務(wù)中。在這些環(huán)境下,各硬件失效的概率增大,同時網(wǎng)絡(luò)又要求不會因節(jié)點(diǎn)故障或鏈路失效而受影響。因此,對以太網(wǎng)的研究具有實(shí)際的工程應(yīng)用價值。在很多工業(yè)應(yīng)用場景中,網(wǎng)絡(luò)應(yīng)具有很高的可靠性以及零故障恢復(fù)時間,現(xiàn)在普遍通過增加網(wǎng)絡(luò)冗余的方式來實(shí)現(xiàn)。然而,以太網(wǎng)協(xié)議和TCP/IP協(xié)議本身沒有定義冗余的通信方式,因此冗余以太網(wǎng)通信得到廣泛研究。雙冗余以太網(wǎng)具有可行性,且可靠性高,但是在這方面的研究國內(nèi)外并不是很多,很多理論和具體實(shí)現(xiàn)都需要進(jìn)一步的研究與深入。本文依托航空科學(xué)基金課題項(xiàng)目“高可靠綜合控制的雙冗余以太網(wǎng)絡(luò)技術(shù)研究”,以設(shè)計與實(shí)現(xiàn)高可靠雙冗余以太網(wǎng)的同時進(jìn)一步優(yōu)化雙冗余以太網(wǎng)、提高其性能為研究目的,開展相關(guān)的研究工作。主要研究內(nèi)容和創(chuàng)新點(diǎn)如下:對相關(guān)的網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)進(jìn)行了研究、比較和分析,選擇合適的拓?fù)浣Y(jié)構(gòu)構(gòu)建網(wǎng)絡(luò)平臺,從而易于后期相關(guān)應(yīng)用的實(shí)現(xiàn)。在高可靠雙冗余以太網(wǎng)中應(yīng)用組播,更改雙冗余節(jié)點(diǎn)加入和離開組播組過程,同時對組播數(shù)據(jù)收發(fā)過程進(jìn)行改進(jìn),從而支持不同通路模式下的組播通信。另外,在兩個獨(dú)立的網(wǎng)絡(luò)中運(yùn)行組播協(xié)議,形成兩棵組播樹,對組播數(shù)據(jù)包進(jìn)行路由。通過對重要數(shù)據(jù)的冗余組播,在增加一些成本和犧牲一部分帶寬的條件下,提高組播可靠性、降低其故障恢復(fù)時間。搭建網(wǎng)絡(luò)平臺并進(jìn)行實(shí)驗(yàn)測試,驗(yàn)證冗余組播的可行性和可靠性。構(gòu)建基于MPLS的高可靠雙冗余以太網(wǎng),主機(jī)節(jié)點(diǎn)通信之前預(yù)先建立兩條路徑,基于1+1保護(hù)方式,采用冗余LSP互為備份機(jī)制,把對重復(fù)數(shù)據(jù)的處理放在主機(jī)節(jié)點(diǎn)進(jìn)行。更改主機(jī)節(jié)點(diǎn)的數(shù)據(jù)收發(fā)方式,使其支持冗余通信,并在不同通路模式下使用不同的LSP。在冗余通路模式下同時使用兩條LSP發(fā)送相同的數(shù)據(jù),以達(dá)到提高通信可靠性的目的。搭建基于MPLS的雙冗余以太網(wǎng)并驗(yàn)證其可行性和可靠性。
[Abstract]:Ethernet has high transmission speed, easy installation, good compatibility, and supports almost all commonly used network protocols. It has been widely used over the years, and has been gradually extended to some communication tasks in harsh and extreme environments. In these environments, the probability of hardware failure increases, and the network is not affected by node failure or link failure. Therefore, the study of Ethernet has practical engineering application value. In many industrial application scenarios, the network should have high reliability and zero fault recovery time, now it is generally realized by adding network redundancy. However, Ethernet protocol and TCP/IP protocol itself do not define redundant communication mode, so redundant Ethernet communication has been widely studied. Dual redundant Ethernet is feasible and reliable, but there are not many researches in this field at home and abroad. Based on the aviation science foundation project "double redundant Ethernet Technology Research of High Reliability Integrated Control", the purpose of this paper is to design and implement high reliability double redundancy Ethernet and further optimize double redundancy Ethernet and improve its performance. Carry out related research work. The main research contents and innovations are as follows: the related network topology structure is studied, compared and analyzed, and the appropriate topology structure is selected to construct the network platform, which is easy to implement the related applications in the later stage. Multicast is applied in high reliability double redundancy Ethernet, the process of adding and leaving multicast group is changed, and the process of sending and receiving multicast data is improved to support multicast communication in different path mode. In addition, two multicast trees are formed to route multicast packets by running multicast protocols in two independent networks. Through redundant multicast of important data, the reliability of multicast is improved and the time of fault recovery is reduced under the condition of increasing some cost and sacrificing part of bandwidth. The feasibility and reliability of redundant multicast are verified by setting up the network platform and carrying out experimental tests. A high reliable double redundancy Ethernet based on MPLS is constructed. Two paths are established before the host node communicates. Based on the protection of 1 1, redundant LSP is used to backup each other, and the repeated data is processed in the host node. Change the data transmission mode of the host node to support redundant communication and use different LSPs in different path modes. In redundant path mode, two LSP are used to transmit the same data at the same time, so as to improve the reliability of communication. Build dual redundancy Ethernet based on MPLS and verify its feasibility and reliability.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.11

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相關(guān)碩士學(xué)位論文 前1條

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本文編號：1852286