DEVELOPMENTAL STUDY ON ELECTRONIC MAIL SYSTEM WITH SWITCHING SERVER

带交换服务器的电子邮件系统的开发研究

• 批准号: 61850056
• 负责人: AKIMARU Haruo
• 金额: $ 5.63万
• 依托单位: TOYOHASHI UNIVERSITY OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61850056/
• 关键词: electronic mail; switching server; distributed functions; transparency; date transmission; トラヒック性能評価

An electronic mail system with switching serve ris proposed and fundamental studies have been made for the system development. In this system. functions are dis- tributed between the server and intelligent terminals such as personal computers. The terminal accesses to the serve only when data transmission is required. and thus, the traffic load on the server is reduced, whereby a small processor can serve a large number of terminals. To realized the proposed system, studies have been made on (1) optimum distribution of functions between terminal and server, (2) transparent and reliable protocol for data transmission, and (3) performance evaluation of traffic characteristics. On the TUT campus computer network, and engineering workstation (sharp 1X5) is used as the server and the prototype system is constructed and tested by making programs for the serve and a terminal (NEC PC9801). The traffic analysis shows that the proposed system can serve as many as over ten times terminals compared with the conventional system of concentrated functions.

提出了一种带有交换服务器的电子邮件系统，并对该系统的开发进行了基础研究。在这个系统中。功能分布在服务器和个人计算机等智能终端之间。终端只有在需要传输数据时才接入服务。从而减少了服务器上的流量负载，从而用小的处理器可以服务大量的终端。为了实现所提出的系统，在以下方面进行了研究：（1）终端和服务器之间功能的优化分配，（2）透明可靠的数据传输协议，以及（3）流量特性的性能评估。在TUT校园计算机网络上，以工程工作站（夏普1X5）作为服务器，通过为服务器和终端（NEC PC9801）编写程序，搭建并测试了原型系统。流量分析表明，与传统功能集中的系统相比，该系统可以服务的终端数量多达十倍以上。

项目成果

秋丸春夫,片山正昭,正柳博之: 電子情報通信学会交換研究会技術報告. SE87-100. 31-36 (1987)

Haruo Akimaru、Masaaki Katayama、Hiroyuki Masayagi：IEICE 交流研究组技术报告 SE87-100 (1987)。

正柳博之: 豊橋技術科学大学計算機センターレポート. 第6号. (1987)

Hiroyuki Masayanagi：丰桥工业大学计算机中心报告第 6 号（1987 年）。

Akimaru,H.;Kuribayashi,H.;Inoue,T.: IEEE Tramsactions on Communications. (1988)

Akimaru,H.；Kuribayashi,H.；Inoue,T.：IEEE Tramsactions on Communications。

Akimaru,H., Kuribayashi,H., Inoue,t.: "Approximate Evaluation for Mixed Delay and Non-Delay Systems" IEEE Transactions on Communications.

Akimaru,H.、Kuribayashi,H.、Inoue,t.：“混合延迟和非延迟系统的近似评估”IEEE 通信交易。

片山正昭,堅田浩徳: 豊橋技術科学大学計算機センターレポート. NO.6. 27-30 (1987)

Masaaki Katayama，Hironori Katata：丰桥工业大学计算机中心报告 NO.6（1987）。