面向一体化标识网络多因素路由决策机制的研究

发布时间：2018-01-19 05:05

本文关键词： 一体化标识网络路由决策多因素原型系统　出处：《北京邮电大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着互联网的高速发展,网络已经深入人们生活的各个方面,给社会的发展带来巨大的变革。当前IP地址不仅标识了用户的身份信息,而且标识了用户的位置信息,具有身份和位置的二义性,限制了未来互联网的发展。一体化标识网络在接入网络采用了接入标识,在核心网络采用路由标识,通过接入标识和路由标识的映射关系,实现身份和位置的相分离,指示着未来网络的发展方向。与此同时,由于网络业务类型的增多和业务复杂性的增强,传统的单因素路由决策机制难以保证可靠的网络服务质量。有鉴于此,本文将基于一体化标识网络平台对影响路由决策的因素进行研究,并结合网络拓扑,链路可用带宽和节点的CPU使用率等因素提出多因素路由决策,以保证服务的服务质量。主要工作如下： (1)进行网络拓扑发现,获得网络拓扑关系并通过展示系统显示,保证了网络拓扑的完整性,为多因素路由决策奠定基础。 (2)通过捕获数据包,进行深度包解析,分析出其应用层协议并利用一体化标识网络服务信息服务器进行链路可用带宽矩阵的维护,以反映网络链路的实时状态,为多因素路由决策提供数据支持。 (3)根据网络拓扑、链路可用带宽、节点的CPU使用率等因素,提出了一种多因素路由决策算法。仿真实验结果表明,多因素路由决策可有效提高链路使用率并减少丢包率。 (4)搭建基于一体化标识网络的网络拓扑,将路由器的控制平面迁徙到中心服务器,中心服务器负责路由表的计算,而路由器专注于数据的转发并完成了多因素路由决策的原型系统的实现和系统测试。本文最后通过原型系统的验证,分别对多因素路由决策和传统路由协议OSPF路由协议进行实验结果对比,实验结果证实了所提出的多因素路由决策的可行性和高效性,表明多因素路由决策能够更好地充分利用网络资源,保证服务的服务质量。
[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.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.02;TN929.5

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