發(fā)布時間：2018-01-19 05:05

  本文關(guān)鍵詞： 一體化標識網(wǎng)絡 路由決策 多因素 原型系統(tǒng)　出處：《北京郵電大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著互聯(lián)網(wǎng)的高速發(fā)展,網(wǎng)絡已經(jīng)深入人們生活的各個方面,給社會的發(fā)展帶來巨大的變革。當前IP地址不僅標識了用戶的身份信息,而且標識了用戶的位置信息,具有身份和位置的二義性,限制了未來互聯(lián)網(wǎng)的發(fā)展。一體化標識網(wǎng)絡在接入網(wǎng)絡采用了接入標識,在核心網(wǎng)絡采用路由標識,通過接入標識和路由標識的映射關(guān)系,實現(xiàn)身份和位置的相分離,指示著未來網(wǎng)絡的發(fā)展方向。與此同時,由于網(wǎng)絡業(yè)務類型的增多和業(yè)務復雜性的增強,傳統(tǒng)的單因素路由決策機制難以保證可靠的網(wǎng)絡服務質(zhì)量。有鑒于此,本文將基于一體化標識網(wǎng)絡平臺對影響路由決策的因素進行研究,并結(jié)合網(wǎng)絡拓撲,鏈路可用帶寬和節(jié)點的CPU使用率等因素提出多因素路由決策,以保證服務的服務質(zhì)量。主要工作如下： (1)進行網(wǎng)絡拓撲發(fā)現(xiàn),獲得網(wǎng)絡拓撲關(guān)系并通過展示系統(tǒng)顯示,保證了網(wǎng)絡拓撲的完整性,為多因素路由決策奠定基礎(chǔ)。 (2)通過捕獲數(shù)據(jù)包,進行深度包解析,分析出其應用層協(xié)議并利用一體化標識網(wǎng)絡服務信息服務器進行鏈路可用帶寬矩陣的維護,以反映網(wǎng)絡鏈路的實時狀態(tài),為多因素路由決策提供數(shù)據(jù)支持。 (3)根據(jù)網(wǎng)絡拓撲、鏈路可用帶寬、節(jié)點的CPU使用率等因素,提出了一種多因素路由決策算法。仿真實驗結(jié)果表明,多因素路由決策可有效提高鏈路使用率并減少丟包率。 (4)搭建基于一體化標識網(wǎng)絡的網(wǎng)絡拓撲,將路由器的控制平面遷徙到中心服務器,中心服務器負責路由表的計算,而路由器專注于數(shù)據(jù)的轉(zhuǎn)發(fā)并完成了多因素路由決策的原型系統(tǒng)的實現(xiàn)和系統(tǒng)測試。 本文最后通過原型系統(tǒng)的驗證,分別對多因素路由決策和傳統(tǒng)路由協(xié)議OSPF路由協(xié)議進行實驗結(jié)果對比,實驗結(jié)果證實了所提出的多因素路由決策的可行性和高效性,表明多因素路由決策能夠更好地充分利用網(wǎng)絡資源,保證服務的服務質(zhì)量。
[Abstract]:With the rapid development of the Internet, the network has gone deep into all aspects of people's lives, bringing great changes to the development of society. Current IP addresses not only identify the identity of users. Moreover, the location information of the user is identified, which has the ambiguity of identity and location, which limits the future development of the Internet. The integrated identification network adopts access identification in the access network, and the routing identification in the core network. Through the mapping relationship between access and routing identification, identity and location are separated, indicating the future direction of network development. At the same time, because of the increase of network service types and the enhancement of service complexity. Traditional single-factor routing decision mechanism can not guarantee reliable quality of service (QoS). In view of this, this paper will study the factors that affect routing decision based on integrated identification network platform, and combine with network topology. In order to ensure the quality of service, the available link bandwidth and the CPU utilization rate of nodes are proposed to ensure the quality of service. The main work is as follows: 1) Network topology discovery, network topology relationship and display system can ensure the integrity of network topology and lay the foundation for multi-factor routing decision. By capturing the data packet and analyzing the depth packet, the application layer protocol is analyzed and the link available bandwidth matrix is maintained by using the integrated identification network service information server. To reflect the real-time state of the network link and provide data support for multi-factor routing decision. 3) according to the network topology, the available bandwidth of the link and the CPU utilization rate of the node, a multi-factor routing decision algorithm is proposed. The simulation results show that the algorithm is effective. Multi-factor routing decision can effectively improve link utilization and reduce packet loss rate. Build the network topology based on the integrated identification network, transfer the control plane of the router to the central server, the central server is responsible for the calculation of the routing table. The router focuses on data forwarding and completes the implementation and system testing of the prototype system of multi-factor routing decision. Finally, through the verification of the prototype system, the experimental results of multi-factor routing decision and traditional routing protocol OSPF routing protocol are compared. The experimental results show that the proposed multi-factor routing decision is feasible and efficient. It shows that the multi-factor routing decision can make full use of network resources and ensure the quality of service.
【學位授予單位】：北京郵電大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TP393.02;TN929.5

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