Multimedia Communication on LAN Emulation ATM network-Performance of Practical Network and Basic Research on Maximum Connection Network-

局域网仿真ATM网络多媒体通信-实用网络性能及最大连接网络基础研究-

• 批准号: 09650408
• 负责人: NARITA Michiko
• 金额: $ 1.86万
• 依托单位: Gifu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650408/
• 关键词: LANE; ATM-LAN; LAN Emulation; Campus Network; Multimedia Network; Network Performance; Maximum Connection Network; Application of Graph Theory; ATMネットワーク; LAN; IP; マルチメディア通信; 最大コネクション・ネットワーク; ネットワーク性能測定

In order to clarify the feature of LAN emulation network (LANE), the performance of a practical LANE network was measured and, also, an investigation on maximum connection network has been performed.In the Gifu University, we LANE computer network consisted of 25 ATM switches and 60 LAN switches. The performances among ATM switches are 622Mbps and 155Mbps. Firstly, I studied the rate performance (bps) between two computers connected to the network, by IP-protocol communication. Parameters of the measurement are type of computer (hardware and operating system), number of hops and switches in the communication route. As a result of that, LANE improves communication performance compared with thick ethernet because of high performance of ATM network, and because of bounded ethernet communication in the small local area. Communication between computers in a virtual LAN separated via ATM network has very high performance, where number of ATM switches influences on the performance little, On … More the other hand, load of routers during communication are likely to enlarge in LANE.Communications between difference virtual LANs aren't highly improved the performance. So that, efforts to decrease load of routers are effective to improve the performance. For example, in some cases, LES/BUS should run in the LAN switches, rather than in the routers. Hops in the communication path should be decrease from each personal computer to the server computers for the all-compus in the computer center.Secondly, structure of high performance information network is studied based on the graph theory. Weighted graph describe well ATM network, where ATM switches and optical cables corresponds to edges and nodes, respectively.Capacity corresponded to communication rate is given on each edge. Occurrence probability of communication request is given between two nodes. Here, the structure of optimal network that has the least occurrence probability of call los, or the least mean interval of call loss. Here, the optimal network is presupposed. Less

为了阐明LAN模拟网络（LANE）的功能，测量了实用车道网络的性能，并且还进行了最大连接网络的投资。在GIFU大学中，我们巷计算机网络由25个ATM开关和60个LAN开关组成。 ATM开关之间的性能为622Mbps和155Mbps。首先，我通过IP-Aolocol通信研究了两台连接到网络的计算机之间的速率性能（BPS）。测量的参数是计算机类型（硬件和操作系统），通信路由中的啤酒花和开关数。因此，由于ATM网络的高性能以及小型当地的以太网通信，Lane与厚度以太网相比，提高了通信性能。通过ATM网络分离的虚拟LAN中计算机之间的通信具有很高的性能，其中ATM开关的数量对性能的影响很小，另一方面，通信过程中的路由器负载可能会增加车道。虚拟LAN之间的交流并不能高度提高性能。因此，减少路由器负载的努力可以有效地提高性能。例如，在某些情况下，LES/BUS应在LAN开关中运行，而不是在路由器中运行。通信路径中的啤酒花应从每个人的计算机到计算机中心中的全磁场的服务器计算机降低。加权图描述了良好的ATM网络，其中ATM开关和光电缆分别对应于边缘和节点。容量对应于每个边缘的通信速率。在两个节点之间给出了通信请求的发生概率。在这里，最佳网络的结构的发生率最少，或者是呼叫损失的平均间隔最小的间隔。在这里，假定最佳网络。较少的

项目成果

原山美知子: "アプリケーションサーバの配置を考慮したLANE-ATMネットワークの設計" 分散システム/インターネット運用技術シンポジウム論文集. 平成11年2月. 39-44 (1999)

Michiko Harayama：“考虑应用服务器放置的 LANE-ATM 网络设计”分布式系统/互联网操作技术研讨会论文集，1999 年 2 月。39-44 (1999)。

Michiko HARAYAMA and Sunsuke Satoh: ""Design of LANE-ATM Network with Application Servers, "" IPSJ Symposium Series. Vol.99, No.3, ISSN 1344-0640. 39-44 (1999)

Michiko HARAYAMA 和 Sunsuke Satoh：“带有应用服务器的 LANE-ATM 网络设计”，IPSJ 研讨会系列。