利用UDP協定改善遠距資料傳輸效率之研究;Research on Improving the Efficiency of Long-distance Data Transmission Using UDP Protocol

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题名:	利用UDP協定改善遠距資料傳輸效率之研究;Research on Improving the Efficiency of Long-distance Data Transmission Using UDP Protocol
作者:	歐富貴;Ou, Fu-Kuei
贡献者:	資訊管理學系在職專班
关键词:	傳輸協定;遠距傳輸;UDP
日期:	2021-07-13
上传时间:	2021-12-07 12:56:23 (UTC+8)
出版者:	國立中央大學
摘要:	在數位化的時代，資料增長的速度遠超過頻寬增加的速度，數位資料要盡可能快速且可靠的流動到世界各地，這對每個致力於國際化的企業都至關重要，目前大多數的資料傳輸方式都是基於TCP通訊協定來實現，TCP固有其可靠傳輸的特性，也是網際網路中使用最廣泛的資料傳輸協定，但TCP在遠距傳輸的流量控制問題始終難以克服，一般的檔案傳輸協定如SMB、FTP、NFS、HTTPS等在面對長距離高延遲的網路環境下，其傳輸效率實在難以滿足企業的需求。本研究是針對數種基於UDP的檔案傳輸軟體，包含開源軟體的Tsunami、商業軟體的Synology公司Presto File Server以及Signiant公司的產品，比較它們在實際應用上架構的差異、優劣勢分析並實驗在不同距離下的傳輸效率，實驗結果確實比TCP傳輸要出色許多，案例公司在評估自身需求、軟體功能、特色及成本之後，最終採用Signiant解決方案，改善遠距檔案傳輸的效率、提升產能並節省管理人員工時。 ;In the digital world, the rate of data growth far exceeds the rate of increase in bandwidth. Digital data must flow as quickly and reliably as possible to all parts of the world. This is very important for every company committed to internationalization. The data transmission methods are all based on the TCP communication protocol. TCP has its inherent characteristics of reliable transmission and is also the most widely used data transmission protocol on the Internet. However, the flow control problem of TCP in long-distance transmission is always difficult to overcome. File transfer protocol such as SMB, FTP, NFS, etc. Facing long-distance and high-latency network environments, their transmission efficiency is difficult to meet the needs of enterprises. This research is aimed at several UDP-based file transfer protocols, including Tsunami for open-source software, Presto File Server and Signiant. Compare their differences in practical application architecture, analyze their advantages and disadvantages, and experiment with different transmission efficiency under the distance is indeed much better than TCP transmission. After evaluating the requirements, software functions, features and costs, the case company finally adopted the Signiant solution to improve the efficiency of long-distance file transmission and save manpower.
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