本文選題：Linux內(nèi)核 + IPv6�。� 參考：《北京郵電大學(xué)》2012年碩士論文

【摘要】：IPv6 (Internet Protocol Version 6)是互聯(lián)網(wǎng)工程任務(wù)組設(shè)計的用于替代現(xiàn)行IP協(xié)議(IPv4 Internet Protocol Version 4)的下一代IP協(xié)議。IPv6將IP地址長度擴展到了128位,能夠有效解決IPv4地址空間不足這一問題以滿足物聯(lián)網(wǎng)等應(yīng)用對IP地址的需求。同時,IPv6將IPv4的IP層報頭進行了簡化,大大降低了核心路由器的表項規(guī)模和流量負擔(dān),能夠適應(yīng)網(wǎng)絡(luò)規(guī)模不斷擴大的發(fā)展趨勢。另外,IPv6加強了對移動設(shè)備的支持,簡化了IP地址配置過程,增強了網(wǎng)絡(luò)層的安全機制,為云計算的興起提供了技術(shù)保障。同時,為滿足網(wǎng)絡(luò)發(fā)展新趨勢對帶寬提升的需求,運營商積極部署了以EPON為基礎(chǔ)的FTTB、FTTH網(wǎng)絡(luò), IEEE組織和各大設(shè)備廠商也提出了帶寬容量大、融合與升級能力優(yōu)異、產(chǎn)業(yè)鏈成熟度高的10G EPON技術(shù)標(biāo)準(zhǔn)。 本論文的研究聚焦在接入網(wǎng)設(shè)備對IPv6協(xié)議的支持上,設(shè)計并實現(xiàn)了Linux內(nèi)核IPv6協(xié)議棧到基于VxWorks的PON接入網(wǎng)設(shè)備軟件平臺的移植與改進,同時基于該軟件平臺制定了10G EPON ONU嵌入式軟件設(shè)計方案。本論文的主要研究開發(fā)工作有： 一、結(jié)合RFC文檔、Linux內(nèi)核代碼和接入網(wǎng)設(shè)備特點,制定了Linux內(nèi)核IPv6協(xié)議棧向某廠商接入網(wǎng)設(shè)備軟件平臺的總體移植方案,包括協(xié)議棧系統(tǒng)模塊的劃分和各模塊之間接口的描述。 二、對IPv6協(xié)議棧的Raw Socket模塊進行了重點研究,闡述了Raw Socket的內(nèi)核處理機制,明確了該模塊的移植改進要點,并在接入網(wǎng)設(shè)備軟件平臺上完成了該模塊的移植編碼和測試工作。 三、設(shè)計了移植IPv6協(xié)議棧的系統(tǒng)聯(lián)調(diào)方案,并在實際OLT設(shè)備上對協(xié)議棧主要功能進行了調(diào)試。系統(tǒng)測試結(jié)果表明：我們移植的IPv6協(xié)議棧符合協(xié)議規(guī)范并能與其他網(wǎng)絡(luò)設(shè)備互通。另外,論文中以鎖機制修改為例介紹了協(xié)議棧移植過程中對Linux系統(tǒng)調(diào)用的修改。 四、設(shè)計了10G EPON ONU設(shè)備的嵌入式軟件方案,包括系統(tǒng)運行需求和設(shè)備功能需求的說明、ONU嵌入式軟件的模塊劃分、模塊功能和模塊間接口的描述。
[Abstract]:IPv6 Internet Protocol version 6) is a next-generation IP protocol designed by the Internet Engineering Task Force to replace the current IP protocol IPv4 Internet Protocol version 4. IPv6 extends the length of IP addresses to 128 bits. It can effectively solve the problem of IPv4 address space shortage to meet the needs of IP address in Internet of things and other applications. At the same time, IPv6 simplifies the IP header of IPv4, greatly reduces the scale of the core router and the burden of traffic, and can adapt to the growing trend of network scale. In addition, IPv6 strengthens the support for mobile devices, simplifies the IP address configuration process, enhances the security mechanism of the network layer, and provides the technical guarantee for the rise of cloud computing. At the same time, in order to meet the demand of the new trend of network development for bandwidth enhancement, operators actively deploy FTTBU FTTH network based on EPON. IEEE organizations and major equipment manufacturers have also proposed that the bandwidth capacity is large, and the ability of integration and upgrading is excellent. High maturity of the industrial chain 10 G EPON technical standards. The research of this paper focuses on the IPv6 protocol support of access network devices, and designs and implements the porting and improvement of Linux kernel IPv6 protocol stack to PON access network equipment software platform based on VxWorks. At the same time, based on the software platform, a 10 G EPON onu embedded software design scheme is developed. The main research and development work of this thesis is as follows: first, according to the RFC document Linux kernel code and access network equipment characteristics, the overall transplant scheme of Linux kernel IPv6 protocol stack to a certain manufacturer access network equipment software platform is established. It includes the partition of protocol stack system module and the description of interface between each module. Secondly, the Raw socket module of IPv6 protocol stack is studied emphatically, the kernel processing mechanism of Raw socket is expounded, the key points of the module's transplantation improvement are clarified, and the transplantation coding and testing work of the module is completed on the access network equipment software platform. Thirdly, the system connection scheme of porting IPv6 protocol stack is designed, and the main functions of the protocol stack are debugged on the actual OLT device. The system test results show that our IPv6 protocol stack conforms to the protocol specification and can interoperate with other network devices. In addition, this paper introduces the modification of Linux system call in the process of protocol stack migration by taking the modification of lock mechanism as an example. Fourthly, the embedded software scheme of 10G EPON ONU device is designed, including the description of system running requirement and device function requirement, module partition, module function and interface between modules.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP368.1;TN929.1

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本文編號：2049590