NETCONF协议原型系统的设计与实现

发布时间：2019-02-22 15:00

【摘要】：随着数据通信网络在规模和服务功能上的不断增加，从而导致了网络管理过程越来越复杂。传统的命令行管理方法是依赖设备生产商，每个厂商都有自己一套独立的网络管理功能命令，由于缺乏标准导致了来自不同厂商设备之间的互操作性；简单网络管理协议（SNMP）主要用于网络故障和性能管理，它在配置管理上的应用非常有限的，特别是在系统配置（涉及多节点）和服务提供上。命令行和SNMP管理上的缺陷导致我们需要研究一种可以可替换的网络管理方法。 Internet任务工作组（IETF）提出了一种新的基于XML的网络管理协议，称为NETCONF协议，它提供一种对来自不同厂商的网络设备管理的方法。NETCONF协议向自动化的基于XML网络管理系统方向迈出了重要的一步。然而，NETCONF的一个主要问题是缺乏业界支持，而且很少有关于NETCONF协议实现的发表。为了支持NETCONF协议基本能力，设计和实现了一个NETCONF协议原型系统，，首先详细研究了NETCONF协议，并根据协议的标准提出了需求分析，同时选择XML Schema语言作为基于NETCONF的数据建模。然后以嵌入设备软件平台为开发环境，主要实现了NETCONF协议传输层、RPC层、操作层和内容层的相关机制和流程。本论文实现的NETCONF协议是一个简单的原型系统。它具备RFC6241定义的NETCONF基本功能，并支持2种发送NETCONF请求报文的传输机制，Console、Telnet或者SSH等命令行终端的XML配置模式下输入NETCONF格式的XML请求，以及用户通过HTTP/TLS将NETCONF格式XML请求发送到设备。
[Abstract]:With the increasing scale and service function of the data communication network, the network management process is becoming more and more complex. The traditional command-line management method is dependent on the device manufacturer, each manufacturer has its own set of independent network management function commands, due to the lack of standards led to interoperability between devices from different manufacturers; Simple Network Management Protocol (SNMP) is mainly used in network fault and performance management. Its application in configuration management is very limited, especially in system configuration (involving multiple nodes) and service provision. Command line and SNMP management deficiencies lead to the need to explore a replaceable network management method. Internet Task working Group (IETF) proposes a new network management protocol based on XML, called NETCONF protocol. It provides a method for network equipment management from different manufacturers. The .NET CONF protocol is an important step in the direction of automated network management system based on XML. However, one of the major problems with NETCONF is the lack of industry support, and there is little publication of NETCONF protocol implementations. In order to support the basic capability of NETCONF protocol, a prototype system of NETCONF protocol is designed and implemented. Firstly, the NETCONF protocol is studied in detail, and the requirement analysis is put forward according to the standard of the protocol. At the same time, the XML Schema language is chosen as the data modeling based on NETCONF. Then the embedded device software platform is used as the development environment to realize the related mechanism and flow of NETCONF protocol transport layer, RPC layer, operation layer and content layer. The NETCONF protocol implemented in this paper is a simple prototype system. It has the basic function of NETCONF defined by RFC6241, and supports two kinds of transmission mechanisms for sending NETCONF request message. In the XML configuration mode of Console,Telnet or SSH terminal, it can input XML request in NETCONF format. And the user sends the NETCONF format XML request to the device through the HTTP/TLS.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.04

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