【摘要】：在三網(wǎng)融合的大背景下,為了迎合市場的需求及適應(yīng)電視新技術(shù)的不斷發(fā)展,需要對(duì)有線電視網(wǎng)絡(luò)進(jìn)行全網(wǎng)的雙向用戶進(jìn)行接入改造。現(xiàn)在雙向網(wǎng)改造中比較熱門的方案是GPON+EOC。 EOC(Ethernet over Coax)是指在同軸電纜中傳輸以太網(wǎng)數(shù)據(jù)信號(hào),基本方法是將以太網(wǎng)信號(hào)經(jīng)過調(diào)制后在同軸電纜中進(jìn)行傳輸。簡單網(wǎng)絡(luò)管理協(xié)議(Simple Network Management Protocol,SNMP)是目前TCP/IP網(wǎng)絡(luò)中應(yīng)用最為廣泛的網(wǎng)絡(luò)管理協(xié)議。使用SNMP協(xié)議管理整個(gè)EOC同軸網(wǎng)絡(luò),可以對(duì)設(shè)備及網(wǎng)絡(luò)進(jìn)行監(jiān)測和控制。 本文是針對(duì)“基于Homeplug AV的低頻EOC系統(tǒng)”的網(wǎng)絡(luò)管理開發(fā)SNMP代理端。NET-SNMP軟件包可以搭建一個(gè)基本的代理端,為了實(shí)現(xiàn)對(duì)同軸網(wǎng)絡(luò)的管理,必須進(jìn)行SNMP代理端擴(kuò)展。所謂擴(kuò)展就是將自定義的模塊加入到NET-SNMP軟件包模塊中,一起編譯。本文提出一種SNMP代理端擴(kuò)展的技術(shù)方案,成功的將廣電國家標(biāo)準(zhǔn)模塊加入到NET-SNMP軟件包模塊中,實(shí)現(xiàn)了代理端擴(kuò)展。本文提出了一種使用mib2c工具將MIB模塊轉(zhuǎn)換成C語言模塊的方法,解決手動(dòng)編寫C語言模塊繁瑣,周期長的弊端。 陷阱(Trap)是代理端到管理端的異步報(bào)告機(jī)制。為了實(shí)現(xiàn)代理端發(fā)送自定義的Trap告警信息,必須要對(duì)Trap進(jìn)行擴(kuò)展,本文提出一種Trap擴(kuò)展的技術(shù)方案,實(shí)現(xiàn)了對(duì)國家廣電Trap模塊的擴(kuò)展。本文提出一種更新Trap會(huì)話鏈表的學(xué)習(xí)型Trap,當(dāng)管理端更新IP地址時(shí),代理端能夠及時(shí)的更新地址列表,進(jìn)而更新Trap會(huì)話鏈表,最終將告警信息發(fā)送給管理端。SNMPv3具有更高的安全性能,本文實(shí)現(xiàn)了代理端向管理端發(fā)送v3版本的Trap。 基于Homeplug AV的低頻EOC系統(tǒng)是一個(gè)大型的軟件系統(tǒng),其中包括交互層,管理層,通信層,數(shù)據(jù)層。SNMP代理端處在交互層,通過共享文件的方式,與管理層通信。設(shè)計(jì)用nscrtv_t和real_time_info_t兩個(gè)結(jié)構(gòu)體分別描述國家廣電MIB庫中的實(shí)時(shí)信息和非實(shí)時(shí)信息, snmp進(jìn)程將共享文件當(dāng)成一個(gè)結(jié)構(gòu)體直接訪問,免去了文件解析的開銷,使得通信速率加快。最后實(shí)現(xiàn)Trap和Snmpset與管理層的通信。
[Abstract]:In order to meet the needs of the market and the development of new TV technology, it is necessary to transform the two-way users of CATV network under the background of the integration of three networks. At present, the popular scheme in bidirectional network reconstruction is that GPON EOC. EOC (Ethernet over Coax) is used to transmit Ethernet data signal in coaxial cable, and the basic method is to transmit Ethernet signal in coaxial cable after modulation. Simple Network Management Protocol (Simple Network Management Protocol) is the most widely used network management protocol in TCP/IP networks. SNMP protocol is used to manage the whole EOC coaxial network, which can monitor and control the equipment and network. This paper is aimed at the network management of "low Frequency EOC system based on Homeplug AV". SNMP agent. NET-SNMP software package can build a basic agent. In order to realize the management of coaxial network, we must extend the SNMP agent. Extension is to add custom modules to NET-SNMP package modules and compile them together. In this paper, a technical scheme of SNMP agent extension is proposed. The national standard module of radio and television is successfully added to the NET-SNMP software package module, and the agent extension is realized. In this paper, a method of converting MIB module into C language module by using mib2c tool is put forward, which solves the drawback of manual programming C language module which is tedious and has long period. Trap (Trap) is an agent-to-management asynchronous reporting mechanism. In order to realize the agent sending self-defined Trap alarm information, it is necessary to extend Trap. In this paper, a technical scheme of Trap extension is proposed, and the extension of the national radio and television Trap module is realized. In this paper, we propose a new Trap session list updating method. When the manager updates the IP address, the agent can update the address list in time, and then update the Trap session list. Finally, sending alarm information to management.SNMPv3 has higher security performance. This paper realizes the agent sending v3 version Trap. The low frequency EOC system based on Homeplug AV is a large software system, which includes interaction layer, management layer, communication layer, data layer. The nscrtv_t and real_time_info_t structures are used to describe the real-time and non-real-time information in the national radio and television MIB library respectively. The shared files are accessed directly by the snmp process, which avoids the overhead of file parsing and speeds up the communication speed. Finally, the communication between Trap and Snmpset and management is realized.
【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】：2012
【分類號(hào)】：TP368.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 藍(lán)波,楊琴,潘淵穎;基于SNMP的MIB庫訪問分析及接口的實(shí)現(xiàn)[J];北京石油化工學(xué)院學(xué)報(bào);2003年03期

2 邵旭,劉紅,丁煒;SNMP Agent和嵌入式Web網(wǎng)管系統(tǒng)的研究與綜合設(shè)計(jì)[J];北京郵電大學(xué)學(xué)報(bào);2001年04期

3 趙小蓉,呂斌,宋凱;基于SNMP網(wǎng)絡(luò)管理協(xié)議的MIB庫分析及存取實(shí)現(xiàn)[J];電腦開發(fā)與應(yīng)用;2001年07期

4 秦瓊;代少升;程鵬程;;基于EoC局終端網(wǎng)絡(luò)管理的設(shè)計(jì)與實(shí)現(xiàn)[J];電視技術(shù);2011年12期

5 高翔;;EoC在廣電網(wǎng)絡(luò)中的應(yīng)用探討[J];廣播與電視技術(shù);2009年10期

6 黃基前;快速理解和掌握MIB[J];光通信技術(shù);2001年01期

7 蔡國森;;基于SNMP的MIB庫訪問實(shí)現(xiàn)的研究[J];計(jì)算機(jī)與信息技術(shù);2005年03期

8 張忱,白雪峰,方樂,徐公權(quán);SNMPv1與SNMPv2、SNMPv3的比較研究[J];計(jì)算機(jī)工程與應(yīng)用;2000年04期

9 劉紅,白棟,孔令山,丁煒;嵌入式SNMP代理軟件的設(shè)計(jì)與實(shí)現(xiàn)[J];計(jì)算機(jī)工程與應(yīng)用;2001年21期

10 尼秀明,徐佩霞;SNMP擴(kuò)展代理的快速實(shí)現(xiàn)及擴(kuò)展技巧[J];計(jì)算機(jī)工程;2002年09期

相關(guān)碩士學(xué)位論文 前2條

1 劉一蘭;基于SNMP MIB編譯器的實(shí)現(xiàn)及其生成器技術(shù)的研究[D];華中師范大學(xué);2004年

2 鄧巍;嵌入式SNMP代理的設(shè)計(jì)與實(shí)現(xiàn)[D];重慶大學(xué);2007年

，

本文編號(hào)：2156826