【作者】 熊伟；

【导师】 肖德宝；

【作者基本信息】 华中师范大学 ， 计算机应用技术， 2004， 硕士

【摘要】 随着网络技术与应用的不断发展，计算机网络在我们的日常生活中已经变得越来越普遍。这些网络的发展使得大到国家经济命脉小到个人日常生活严重依赖于计算机网络，因此网络运行的稳定性、可靠性就显得至关重要，于是网络管理就应运而生。 自从八十年代末期SNMP简单网络管理协议面世以来，网络管理技术在短短的十几年里得到了突飞猛进的发展，随着管理功能的增强和管理对象的扩大，网络管理技术正逐步成为网络构建和维护中必不可少的重要因素。 目前商用的网络管理软件都是基于SNMP框架，驻留在被管设备上的管理代理(agent)负责维护该设备的管理信息库(MIB)，管理站则负责所有的数据处理工作。这种工作方式己经暴露出了一些弊病，比如管理代理没有智能，缺少灵活性。虽说在SNMPv2中采用了分级的结构，在一定程度上克服了集中式管理的毛病，但管理者与管理者之问通信能力有限，管理功能仍然缺少灵活性和智能性，没有从根本上解决问题。 移动Agent技术的出现给网络管理带来了一次革命，很快成为国内外研究的热点。移动Agent是能够在网上移动并完成相应任务的智能体，它具有移动性、智能性、并行性、自治性、持续性等特点。移动Agent技术的这些优点，很好地弥补了基于SNMP的网络管理系统的不足，能适应现代网络发展多样性的需要。 随着网络规模的不断扩大，网络管理逐渐由集中式向分稚式发展，同时简单管理协议SNMP作为主流的网络管理协议被现今网络中大多数的设备所支持，因此，基于SNMP移动Agent的分布式网络管理成为当前研究的热点。 本文旨在研究基于移动Agent的代理群的网络管理模型，重点研究了SNMP协议、移动Agent、代理群技术，以及结合SNMP协议、移动Agent、代理群技术的分布式网络管理模型。更多还原

【Abstract】 With the continous development of application and technology of computer network,the computer network has become more and more popular in our common life.The development make everyone’s daily life even the life line of one country depend on the computer network heavily,so stability and reliability of network runing are seemed to be vital,and thus network management emerges as the times requires.Network management technology has been developing rapidly since SNMP (Simple Network Management Protocol) was published at the end of 1980s.lt becomes an essential element in constructing and maintaining networks along with the enhancement of management functions and expanding of managed objects.The current commercial network management softwares are all based on SNMP frame.The management agent daemoning in the managed device is responsible for maintaining the MIB of the device.The management station is responsible for manipulating all the data.The model has exposured some disadvantages,for example that the management agent has no intelligence and is short of flexibility.Though the layer frame of SNMPv2 protocol overcomes the disadvantages of concentrative management in some extent.But the ability of communication between manager and manager is limited.and the management function is yet short of flexibility and intelligence and the problem can’t be resolved in nature.The emergence of mobile agent gives network management an revolution,and soon the mobile agent becomes the hotspot of research.Mobile agent is the intelligence body that can move in the network and complete relevant tasks,it has the feature of mobility,intelligence, concurrent,autonomy,durative.The advantages of mobile agent primely make up for the lack of network management system based on SNMP protocol and meet the variety requirement of the network development.With the expanding of network, network management is from concentration to distribution gradually.At the same time,the SNMP protocol is being seemed as mainstream network management protocol and supported by most of the devices in present network.So the distributed network management based on SNMP protocol and mobile agent is becoming the hotspot of current research.This paper aims at the research of the model of network management based on SNMP protocol and mobile agent and agents group.The emphaseses of the research are on the SNMP protocol,mobile agent,agents group and the distributed network management model which combines SNMP protocol,mobile agent.agents group.更多还原