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MERIT'S EVOLUTION -- STATISTICALLY SPEAKING

IP.com Disclosure Number: IPCOM000128466D
Original Publication Date: 1984-Jan-01
Included in the Prior Art Database: 2005-Sep-16
Document File: 16 page(s) / 56K

Publishing Venue

Software Patent Institute

Related People

Aupperle, Eric M.: AUTHOR [+3]

Abstract

Merit links four Michigan universities with a packet-switching computer network. This network provides several interactive and batch services to students, faculty, and researchers of these schools. While the network and its services are reviewed, this paper focuses on the statistical performance of Merit during its first ten operational years. Numerous graphs and tables present data including time-series showing the growth of usage , transmission- rate related measures, normalized measures on a per-connection basis, and the distribution of activity among the hosts. The data reveal that on an aggregated basis the current average packet size is nearly 50 bytes with a corresponding transmission rate of 1350 packets per hour for each virtual connection. While these are the aggregate averages, there is considerable variation of these values among the different services Merit offers. This paper concludes with explanation for these differences and general observations about Merit's usage patterns. Index Terms-Data communications, interuniversity networking, network statistics, packets switching, regional network, resource sharing.

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THIS DOCUMENT IS AN APPROXIMATE REPRESENTATION OF THE ORIGINAL.

[ title ] MERIT'S EVOLUTION -- STATISTICALLY SPEAKING

Eric M. Aupperle

CRL-TR-4-84

THE UNIVERSITY OF MICHIGAN COMPUTING RESEARCH LABORATORY1

JANUARY 1984

Room 1079, East Engineering Building
Ann Arbor, Michigan 48109 USA
Tel: (313) 763 8000
This report also appeared in IEEE Transactions on Computers, Vol.C-32,NO.10 (October), l983

Abstract

Merit links four Michigan universities with a packet-switching computer network. This network provides several interactive and batch services to students, faculty, and researchers of these schools. While the network and its services are reviewed, this paper focuses on the statistical performance of Merit during its first ten operational years. Numerous graphs and tables present data including time-series showing the growth of usage , transmission- rate related measures, normalized measures on a per-connection basis, and the distribution of activity among the hosts. The data reveal that on an aggregated basis the current average packet size is nearly 50 bytes with a corresponding transmission rate of 1350 packets per hour for each virtual connection. While these are the aggregate averages, there is considerable variation of these values among the different services Merit offers. This paper concludes with explanation for these differences and general observations about Merit's usage patterns.

Index Terms-Data communications, interuniversity networking, network statistics, packets switching, regional network, resource sharing.

[ Chapter ] I. INTRODUCTTON

THE Merit Computer Network is a packet-switching network developed by three Michigan universities: Michigan State University, the University of Michigan, and Wayne State University. The network became operational in July 1972 and has operated continuously since then. Throughout this period, the network's functional facilities have been enhanced and its performance refined. In January 1979 Western Michigan University became the fourth Merit member.

The first section of this paper offers an overview of the network's current characteristics and capabilities. This background information provides the context for understanding the main topic of the paper, the network's usage statistics. The next section describes statistical information that have been recorded throughout the network's operational life and how these data are

1 Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the authors and do not necessarily reflect the news of the funding agency.

University of Michigan Computing Research Laboratory Page 1 Jan 01, 1984

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MERIT'S EVOLUTION -- STATISTICALLY SPEAKING

processed. This is followed by several sections that present various statistical summaries and data represented in graphical and tabular forms. In the final section the author offers several observations about these network data.

[ Chapter ] II. AN OVERVIEW OF THE MER...