基于WiFi的WMN多规模网管平台研究

发布时间：2019-03-14 19:40

【摘要】：近年来基于WiFi的无线Mesh网络,即WWMN网络迅速发展,从家庭套装和校园部署到企业部署乃至运营级部署,WWMN网络逐渐演变为智慧城市的重要支撑。随着网络规模的爆炸式增长,一个单一的网络管理方案越来越无法满足需求,这主要表现在不同场景与不同规模的WWMN网络对网络管理的需求存在巨大差异,因此一套能够适应多种不同规模网络管理的方案成为亟需。本文针对智慧城市建设中的无线网络部署问题,提出了基于WiFi的无线Mesh网的网络管理平台的设计方法,分别解决了适应于不同规模WWMN部署的复杂网管问题。主要研究成果如下：(1)对于小规模WWMN(典型应用场景：家庭、办公室),本文设计实现了基于SNMP协议的网络管理平台。首先分析了小规模WWMN网络的特点以及管理需求,然后在此基础上分别完成了服务器、设备端的管理器和代理的开发。在针对代理的开发过程中,设计了一个全面细致的MIB库。最后,通过把包含网管系统在内的OpenWrt系统移植到路由器上,实现了基于SNMP协议的网管系统应用。通过借助路由器一系列的测试,进一步验证了基于SNMP协议的网络管理平台在小规模WWMN网络管理方面的优势。实践表明该基于SNMP协议实现的WWMN网管平台满足小范围网络部署管理的应用需求。(2)对于中规模WWMN(典型应用场景：校园级部署、社区级部署、轻量级运营部署网络),本文提出了基于CAPWAP协议的网络管理平台。通过分析CAPWAP协议,确立了基于CAPWAP网络平台的设计方案。方案通过采用AC+FITAP结构管理使得较大规模网络管理变得可能,设计方案涵盖了本地转发技术、管理信息库设计、应用程序配置的网络管理、设备配置管理和系统管理等内容。在此基础上,本文进一步探讨了基于CAPWAP协议网管平台的实现,并借助OpenCapwap实现了AC和FIT AP之间代理的CAPWAP通信。最后,将WWMN在校园网部署并规划了其管理模型。(3)对于大规模WWMN(典型应用场景：运营级部署、跨校区、跨地区、跨城市甚至跨国界范围的网络),本文提出了基于CSP思想的网络管理平台。方案通过采用云服务平台、虚拟共享管理器技术使得这种大范围网络管理成为可能。方案将大规模网络划分安全域和VLAN进行分块、分级管理,在云服务平台数据中心、虚拟共享管理器、AP无线接入和用户四层架构下,实现Web管理、带宽管理、漫游管理、虚拟共享模式管理和数据转发控制管理等内容。最后,本文探讨了基于CSP的网管平台的实现,包含了OpenStack虚拟网络管理和基于CSP思想的网管校园网实现。
[Abstract]:In recent years, wireless Mesh network based on WiFi, I. E. WWMN network, has developed rapidly. From home suite and campus deployment to enterprise deployment and even operation-level deployment, WWMN network has gradually evolved into an important support for smart city. With the explosive growth of network scale, a single network management scheme can not meet the demand more and more, which is mainly reflected in the huge difference of network management requirements between different scenarios and different size of WWMN networks. Therefore, a set of solutions that can adapt to a variety of different scale network management has become an urgent need. Aiming at the problem of wireless network deployment in the construction of smart city, this paper presents the design method of network management platform of wireless Mesh network based on WiFi, and solves the complex network management problem which adapts to different scale WWMN deployment respectively. The main research results are as follows: (1) for small-scale WWMN (typical application scenario: home, office), a network management platform based on SNMP protocol is designed and implemented in this paper. This paper first analyzes the characteristics and management requirements of small-scale WWMN network, and then completes the development of server, device-side manager and agent on the basis of this. In the process of agent development, a comprehensive and detailed MIB library is designed. Finally, the OpenWrt system including the network management system is transplanted to the router, and the application of the network management system based on SNMP protocol is realized. Through a series of tests on routers, the advantages of the network management platform based on SNMP protocol in small-scale WWMN network management are further verified. The practice shows that the WWMN network management platform based on SNMP protocol meets the application requirements of small-scale network deployment management. (2) for the medium-scale WWMN (typical application scenario: campus-level deployment, community-level deployment, lightweight operational deployment network), This paper presents a network management platform based on CAPWAP protocol. Through the analysis of CAPWAP protocol, the design scheme based on CAPWAP network platform is established. The scheme adopts AC FITAP structure management to make large-scale network management possible. The design scheme includes local forwarding technology, design of management information base, network management of application configuration, device configuration management and system management, etc. The design scheme includes local forwarding technology, management information base design, network management of application program configuration, device configuration management and system management. On this basis, this paper further discusses the implementation of network management platform based on CAPWAP protocol, and realizes the CAPWAP communication between AC and FIT AP by means of OpenCapwap. Finally, WWMN is deployed on campus network and its management model is planned. (3) for large-scale WWMN (typical application scenario: operational-level deployment, cross-campus, cross-regional, cross-city and even cross-border networks), This paper presents a network management platform based on CSP. The scheme adopts cloud service platform and virtual share manager technology to make this kind of large-scale network management possible. The scheme divides large-scale network into security domain and VLAN for block, hierarchical management, and realizes Web management, bandwidth management and roaming management under the four-layer architecture of cloud service platform data center, virtual sharing manager, AP wireless access and user. Virtual sharing mode management and data forwarding control management. Finally, this paper discusses the implementation of CSP-based network management platform, including OpenStack virtual network management and CSP-based network management campus network implementation.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.07

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