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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/8465


    Title: 國家實驗網路中以Web為介面的網路管理系統之實作;A Web-based Network Management System for National Broadband Experimental Networks
    Authors: 沈錕章;Kun-Chang Shen
    Contributors: 資訊工程研究所
    Keywords: 移動式代理人;信賴主機;以Web為介面之網路管理工具;網接中心;國家寬頻實驗網路;代理人系統;mobile agent;trusted host;WNMS;NBEN;GigaPOP;mobile agent system
    Date: 2000-07-14
    Issue Date: 2009-09-22 11:27:41 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 國家寬頻實驗網路(National Broadband Experimental Network;簡稱NBEN)之網接中心(Point of Presence with Gigabit capacity;簡稱GigaPOP)及網路骨幹皆已建設完成,其間以ATM網路骨幹連接各大學之GigaPOP,以進行具高頻寬、即時性及服務品質需求之實驗,進而掌握技術發展趨勢及需求成長方向。 本論文在NBEN上研發並實作一以Web為介面之網路管理系統(Web-based Network Management System;簡稱WNMS),讓使用者以人性化且方便的操作介面管理網路,可改善目前NBEN以人工作業方式逐一設定ATM交換機所帶來的不便。它提供一個Web介面(1)讓使用者可以隨時隨地獲得最新網路狀況的資訊,(2)讓使用者透過Web介面線上申請使用網路的頻寬資源,且系統自動回覆處理狀況,(3)自動設定ATM交換機之虛擬路徑或虛擬通道。 為了強化遠程自動遙控各個ATM交換機時所帶來的安全問題,本論文以信賴主機(trusted host)之機制及網路安全技術來克服此一問題。此外,為了能減輕因遠程遙控而在網路中造成額外的負擔,本論文提出使用移動式代理人(mobile agent)的機制。移動式代理人並不會在網路中建立一固定的連線,而是將所需要進行的工作攜帶至遠端的信賴主機執行,而信賴主機上將存在一代理人系統用以執行遠端所交付之任務。因此在使用者眾多的情形下將大幅節省網路頻寬,提高網路品質。使用移動式代理人之攜帶工作的特性,在現有的網路架構下即可發展多樣的網路服務而不需固定的網路連線或特定之通訊協定,讓網路服務之發展更有彈性。 The GigaPOP (Point of Presence with Gigabit capacity) and the ATM-based backbone of the NBEN (National Broadband Experimental Network) have been constructed completely to provide high-bandwidth and real-time services. A Web-based Network Management System (WNMS) is proposed in the thesis to provide a friendly and conveniently control interface for managing NBEN. The WNMS is able to improve the inconvenience of artificial operations for setting GigaPOPs one by one. Furthermore, a Web interface is designed to provide the following features:(1) acquire the newest network information, (2) online application for an end-to-end connection and tracing the status, and (3) automatic setup of the VP/VC connections. In order to enhance the security of remote control for ATM switches, a trusted host mechanism with network security technology is proposed in WNMS. Besides, to reduce the load of the network traffic caused by remotely controlling network devices, a mobile agent technology is proposed in the thesis. A mobile agent could bring the works to remote trusted host without permanent connections. There is a mobile agent system on the trusted host that providing an execution environment to execute the works brought by mobile agents. Therefore, the wasted bandwidth is reduced and the quality of network service is enhanced. Using the properties of mobile agents, various network services can be developed conveniently and permanent connections or a specific protocol at current network infrastructure are not necessary.
    Appears in Collections:[資訊工程研究所] 博碩士論文

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