博碩士論文 88522016 詳細資訊




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姓名 唐可忠(Ko-Chung Tang )  查詢紙本館藏   畢業系所 資訊工程研究所
論文名稱 應用多重移動式代理人之網路管理系統
(Web-based Network Management Systems with Multiple Mobile Agents Support)
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摘要(中) 傳統的網路管理作業多半是以client/server主從式架構來進行,但其效率及擴充性卻有所限制。由於網路架構日趨龐大,網路應用及需求不斷更新,如何快速更新、散播新的政策或機制將是即將面臨的問題。未來的網路管理系統必須以彈性、分散、主動、智慧、效率為主要的規劃考量,進而達到更具有效率及彈性的管理。
本論文研發並實作一應用多重移動式代理人之網路管理系統(Web-based Network Management Systems with Multiple Mobile Agents Support,簡稱WNMS/MMA),將各個網路管理功能整合至多個移動式代理人(mobile agent)中,以達成可靠且具有效率的網路管理環境。本系統以Web為介面,提供了網路拓撲狀況顯示、ATM虛擬通道之自動探索,以及移動式代理人之派送功能。
本系統以移動式代理人為基礎,提供智慧且有效率的管理功能,移動式代理人進行工作期間,並不會在網路中建立一專屬連線,而是將被賦予的工作攜帶至遠端的信賴主機(trusted host)上執行,由於移動式代理人之特性,將可以節省網路頻寬,並且保證工作之持續進行,不因網路斷線或不穩定等問題而被中止。此外,為避免在管理過程中可能遭遇的安全性問題,本論文採用信賴主機之機制及網路安全技術來因應。移動式代理人攜帶工作之特性,在現有的網路下即可發展多樣化的網路服務,而不需要持續性的網路連線或通訊協定,網路服務之發展也因此而更富有彈性。
摘要(英) Traditional network management systems are based on the centralized client/server architecture, and their flexibility and efficiency are limited as the complexity of the network increases. Therefore, the network management systems must be more distributed, flexible, efficient, active and intelligent.
A Web-based Network Management System with Multiple Mobile agents Support (WNMS/MMA) is proposed in the thesis to provide an efficient and intelligent management interface for managing networks. The mobile agent technologies are applied in the WNMS/MMA to develop multiple mobile agents with various functions for network management. A Web interface is designed to provide following features: (1) graphical network topology and related information display, (2) ATM permanent virtual circuit (PVC) auto discovery, and (3) a mobile agent dispatching and messaging interface.
A mobile agent could do the works remotely without permanent connections, so as to overcome network latency, and save the network bandwidth. When management policies are modified, the mobile agents carrying those policies are easily to be exchanged to support various functions. In the proposed system, each GigaPOP has its own trusted host with mobile agent system to provide an execution environment for executing the works carried by mobile agents. In order to enhance the security of the system, the trusted hosts can communicate with the corresponding GigaPOPs by network security technologies.
關鍵字(中) ★ 代理人系統
★  國家實驗網路
★  移動式代理人
★  網接中心
★  網路管理系統
關鍵字(英) ★ GigaPOP
★  mobile agent
★  mobile agent system
★  NBEN
★  WNMS/MMA
論文目次 第一章 緒論1
1.1 網路管理簡介1
1.2 代理人技術簡介2
1.3 研究背景4
1.4 研究目標4
1.5 論文架構5
第二章 相關研究6
2.1 SNMP網路管理協定6
2.1.1 SNMP網路管理協定簡介6
2.1.2 SNMP之網路管理機制7
2.2 移動式代理人9
2.2.1 移動式代理人(Mobile agent)簡介9
2.2.2 移動代理人之功能及特徵10
2.2.3 移動式代理人之應用11
2.2.4 移動式代理人系統介紹15
2.2.4.1 Voyager15
2.2.4.2 Concordia16
2.2.4.3 Grasshopper16
2.2.4.4 Aglets16
2.2.5 移動式代理人系統之實作17
2.2.6 移動式代理人的安全性18
第三章 網路管理系統之設計及實作19
3.1 國家寬頻實驗網路簡介19
3.2 系統需求分析及設計22
3.2.1 GUI user interface 使用者操作介面25
3.2.2 Authorized identity模組28
3.2.3 System and network information模組30
3.2.4 Mobile agent dispatch模組33
3.2.5 System event management模組35
3.3 管理通訊協定設計36
3.3.1 基本系統訊息之通訊協定36
3.3.2 移動式代理人派送之通訊協定41
3.4 系統功能43
3.5 系統架構46
3.6 系統實作50
3.6.1 系統配備及實作環境50
3.6.2 實作成果52
第四章 移動式代理人之設計及實作57
4.1 移動式代理人架構分析57
4.2 移動式代理人之追蹤59
4.2.1 搜索法59
4.2.2 路徑記錄法60
4.2.3 註冊法61
4.3 移動式代理人實作成果62
4.3.1 監測代理人(monitoring agent)62
4.3.2 SNMP 查詢代理人(SNMP query agent)65
4.3.3 PVC自動探索代理人(PVC auto discovery agent)68
第五章 結論及未來發展方向72
參考文獻75
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指導教授 周立德(Li-Der Chou) 審核日期 2001-7-19
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