本文選題：新型互聯(lián)網(wǎng) + 層次化�。� 參考：《北京交通大學(xué)》2017年碩士論文

【摘要】：互聯(lián)網(wǎng)作為整個社會的關(guān)鍵基礎(chǔ)設(shè)施,已經(jīng)滲透到人們生產(chǎn)、生活等各個領(lǐng)域,然而面對著網(wǎng)絡(luò)中海量的資源與服務(wù),傳統(tǒng)的域名系統(tǒng)由于其命名的局限性和解析系統(tǒng)的移動性不足,已經(jīng)無法適應(yīng)新型互聯(lián)網(wǎng)架構(gòu)。因此,本文在調(diào)研國內(nèi)外現(xiàn)有服務(wù)解析機制的基礎(chǔ)上,結(jié)合新型互聯(lián)網(wǎng)特點,在"服務(wù)層"中設(shè)計了一種層次化服務(wù)標(biāo)識解析映射系統(tǒng),該系統(tǒng)提出一種基于內(nèi)容的層次化命名和描述機制,并設(shè)計了相應(yīng)的層次化解析映射系統(tǒng),實現(xiàn)了對服務(wù)和資源的統(tǒng)一描述和管理。本文的工作重點是對服務(wù)資源進(jìn)行統(tǒng)一化命名與描述,設(shè)計相應(yīng)解析映射系統(tǒng),并對解析結(jié)果按"相關(guān)度"排序。首先,本文結(jié)合"服務(wù)層"的需求,在參考NDN命名機制的基礎(chǔ)上,設(shè)計了一種以內(nèi)容為中心的層次化服務(wù)標(biāo)識命名和描述機制,該機制采用服務(wù)標(biāo)識及其映射信息共同去標(biāo)識某個服務(wù)或資源,使得對服務(wù)的描述更加清晰和全面。接著針對新的命名和描述機制,在借鑒現(xiàn)有域名解析系統(tǒng)的基礎(chǔ)上,設(shè)計了一種層次化的服務(wù)標(biāo)識解析映射系統(tǒng),該系統(tǒng)采用一種名稱最長前綴匹配的迭代方式進(jìn)行系統(tǒng)解析,使得每次解析不必都訪問根服務(wù)器,而是直接從名稱匹配最長的中間某臺映射服務(wù)器開始向下解析,很好的均衡層次化系統(tǒng)上層服務(wù)器的壓力,減少查詢跳數(shù),提高查詢速率。最后在查詢完成后,為使用戶能夠更好的對查詢結(jié)果進(jìn)行選擇,本文中對每個查詢結(jié)果定義了 "相關(guān)度"的概念,并對結(jié)果進(jìn)行了"相關(guān)度"排序。本文的主要工作包括:首先對現(xiàn)有的服務(wù)命名和解析機制進(jìn)行了調(diào)研和分析,并對新型互聯(lián)網(wǎng)背景進(jìn)行了簡要介紹。其次詳細(xì)介紹了層次化服務(wù)標(biāo)識及其映射結(jié)構(gòu)信息的設(shè)計。接著詳細(xì)闡述了本文設(shè)計的層次化解析映射系統(tǒng)的體系結(jié)構(gòu)、工作流程、數(shù)據(jù)包設(shè)計和最長前綴匹配的實現(xiàn)機制,并對每一部分的實現(xiàn)進(jìn)行了詳細(xì)說明。然后詳細(xì)介紹了查詢結(jié)果的"相關(guān)度"概念,并對"相關(guān)度"排序的處理流程和主要實現(xiàn)函數(shù)進(jìn)行了詳細(xì)闡述。之后搭建實驗環(huán)境,對上述系統(tǒng)設(shè)計進(jìn)行測試和分析。最后對本文的工作進(jìn)行簡要總結(jié),并對研究內(nèi)容進(jìn)行展望。
[Abstract]:As the key infrastructure of the whole society, the Internet has penetrated into people's production, life and other fields, but in the face of the vast amount of resources and services in the network, The traditional domain name system is unable to adapt to the new Internet architecture because of its limitation of naming and the lack of mobility of the analytic system. Therefore, on the basis of investigating the existing service resolution mechanisms at home and abroad and combining the characteristics of the new Internet, this paper designs a hierarchical service identification parsing mapping system in the "service layer". This system proposes a hierarchical naming and description mechanism based on content, and designs a hierarchical mapping system to describe and manage services and resources. This paper focuses on the unified naming and description of service resources, the design of the corresponding analytic mapping system, and the ranking of the analytical results according to the "correlation degree". First of all, according to the requirement of "service layer" and referring to the naming mechanism of NDN, this paper designs a named and describing mechanism of hierarchical service identification based on content. This mechanism uses service identification and its mapping information to identify a service or resource, which makes the description of the service clearer and more comprehensive. Then, aiming at the new naming and description mechanism, based on the existing domain name resolution system, a hierarchical service identification parsing mapping system is designed. The system uses an iterative method of matching the longest prefix of the name to parse the system. Each parse does not have to visit the root server, but directly from the middle mapping server with the longest name matching to start the downward analysis, which balances the pressure of the upper server of the hierarchical system, reduces the number of query hops, and improves the query speed. Finally, after the completion of the query, in order to enable the user to better select the query results, this paper defines the concept of "relevance degree" for each query result, and sorts the results "relevance degree". The main work of this paper is as follows: firstly, the existing service naming and parsing mechanisms are investigated and analyzed, and the background of the new Internet is briefly introduced. Secondly, the design of hierarchical service identification and its mapping structure information is introduced in detail. Then, the architecture, workflow, packet design and longest prefix matching mechanism of the hierarchical analytic mapping system designed in this paper are described in detail, and the implementation of each part is described in detail. Then, the concept of "relevance degree" of query results is introduced in detail, and the processing flow and main implementation functions of "correlation degree" ranking are described in detail. Then the experimental environment is built to test and analyze the above system design. Finally, the work of this paper is briefly summarized, and the research content is prospected.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP393.09

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 張立成;彭勇華;;一種智能DNS的設(shè)計與實現(xiàn)[J];計算機系統(tǒng)應(yīng)用;2012年11期

2 李曉倩;邱峰;周華春;張宏科;;基于生存時間的映射緩存建模與仿真分析[J];北京交通大學(xué)學(xué)報;2012年05期

3 謝高崗;張玉軍;李振宇;孫毅;謝應(yīng)科;李忠誠;劉韻潔;;未來互聯(lián)網(wǎng)體系結(jié)構(gòu)研究綜述[J];計算機學(xué)報;2012年06期

4 蘇偉;劉琪;張宏科;;一體化標(biāo)識網(wǎng)絡(luò)體系及關(guān)鍵技術(shù)[J];中興通訊技術(shù);2011年02期

5 楊冬;周華春;張宏科;;基于一體化網(wǎng)絡(luò)的普適服務(wù)研究[J];電子學(xué)報;2007年04期

6 董平;秦雅娟;張宏科;;支持普適服務(wù)的一體化網(wǎng)絡(luò)研究[J];電子學(xué)報;2007年04期

7 李靜梅;吳鵬;;智能DNS系統(tǒng)的設(shè)計與實現(xiàn)[J];計算機工程與應(yīng)用;2007年11期

8 李丹,吳建平,崔勇,徐恪;互聯(lián)網(wǎng)名字空間結(jié)構(gòu)及其解析服務(wù)研究[J];軟件學(xué)報;2005年08期

相關(guān)博士學(xué)位論文 前1條

1 李曉倩;一體化標(biāo)識網(wǎng)絡(luò)身份與位置映射關(guān)鍵技術(shù)研究[D];北京交通大學(xué);2013年

相關(guān)碩士學(xué)位論文 前2條

1 張震;未來網(wǎng)絡(luò)信息分發(fā)技術(shù)研究[D];北京郵電大學(xué);2015年

2 潘崢;一種基于DHT的服務(wù)標(biāo)識解析機制的設(shè)計與實現(xiàn)[D];北京交通大學(xué);2008年

，

本文編號：1976576