Interlinking of Computer Networks: Proceedings of the NATO Advanced Study Institute held at Bonas, France, August 28 – September 8, 1978 PDF
Preview Interlinking of Computer Networks: Proceedings of the NATO Advanced Study Institute held at Bonas, France, August 28 – September 8, 1978
Interlinking of Computer Networks NATO ADVANCED STUDY INSTITUTES SERIES Proceedings of the Advanced Study Institute Programme, which aims at the dissemination of advanced knowledge and the formation of contacts among scientists from different countries The series is published by an international board of publishers in conjunction with NATO Scientific Affairs Division A Life Sciences Plenum Publishing Corporation B Physics London and New York C Mathematical and D. Reidel Publishing Company Physical Sciences Dordrecht, Boston and London D Behavioral and Sijthoff International Publishing Company Social Sciences Leiden E Applied Sciences Noordhoff International Publishing Leiden Series C - Mathematical and Physical Sciences Volume 42 - Interlinking of Computer Networks Interlinking of Computer Networks Proceedings o/the NATO Advanced Study Institute held at Bonas, France, August 28 -September 8, 1978 edited by KENNETH G. BEAUCHAMP director of computer services University of Lancaster, U.K. D. Reidel Publishing Company Dordrecht : Holland I Boston: U.S.A. I London: England Published in cooperation with NATO Scientific Affairs Division library of Congress Cataloging in Publication Data Nato Advanced Study Institute on Interlinking of Computer Networks, Bonas, France, 1978. Interlinking of computer networks. (NATO advanced study institutes series: Series C, Mathematical and physical sciences; 42) Includes index. 1. Computer networks-Congresses. I. Beauchamps, K. G. II. Title. III. Series. TKSI0S.S.N38 1978 001.6'44'04 79-11438 ISBN-13: 978-94-009-9433-1 e-ISBN-13: 978-94-009-9431-7 DOl: 10.1007/978-94-009-9431-7 Published by D. Reidel Publishing Company P.O. Box 17, Dordrecht, Holland Sold and distributed in the U.S.A., Canada, and Mexico by D. Reidel Publishing Company, Inc. Lincoln Building, 160 Old Derby Street, Hingham, Mass. 02043, U.S.A. All Rights Reserved Copyright © 1979 by D. Reidel Publishing Company, Dordrecht, Holland Softcover reprint of the hardcover 15t edition 1979 No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording or by any informational storage and retrieval system, without written permission from the copyright owner TABLE OF CONTENTS Foreword ix Part 1 INTERNATIONAL NETWORKING Page P.T. Kirstein Some international Developments in Data Services 3 R. Feldman Trends in European Network Developments 31 H.J. Helms Organization and Technical Problems of the European Informatics Network 45 J.W. Burren Satellite Communications Systems and the European Project STELLA 65 Part 2 NETWORK PLANNING R. Feldman U.K. Post Office Current and Future Plans 83 W.A. McCrum Current CCITT Standards 95 A. Belloni and G. Le Moli Protocols Standardization versus Protocols Conversion in Computer Networks Inter connection III v vi TABLE OF CONTENTS R. Feldman Page EPSS Developments lSI J. Howlett 157 Users' View of a National Network S. Miege Transfer of Cyclades Applications towards 161 TRANS PAC Network Part 3 NETWORK DESIGN D. Cohen On Interconnection of Computer Networks 175 E. Raubold A Model for Inter-process Communication 185 D.W. Davies Cryptography and Crypto-Systems 201 S.T. Kent Protocol Design Considerations for Network Security 239 H. Zimmerman and N. Naffah Protocols and Network Interconnection 261 T. Laws and V. Hathway Experience from Two Forms of Inter-network Connection 273 Part 4 NETWORK APPLICATION V.G. Cerf DARPA Activities in Packet Network Inter connection 287 F.F. Kuo Defense Packet Switching Networks in the United States 307 W.A. McCrum Canadian Public-switched Data Networks - Infoswitch and Datapac 315 J.W. Burren The U.K. S.R.C. Computer Network 331 TABLE OF CONTENTS vii I.G. Dewis Page The British Steel Corporation Network 345 R.A. Rosner Networking among U.K. Universities 353 J.D. Rice The North-West Universities Network 365 Part 5 NETWORK MANAGEMENT F.F. Kuo Message Services in Computer Networks 387 D.W. Davies Congestion Control in Hierarchical Networks 397 J.L. Grange Operation of the CYCLADES Network 411 A. Hinchley Some Service Aspects of the X25 Interface 421 E. Raubold Flow Control in the GMD Network 431 List of Participants 469 Index of Names 473 FOREWORD This volume contains the papers presented at the NATO Advanced Study Institute on the Interlinking of Computer Networks held between August 28th and September 8th 1978 at Bonas, France. The development of computer networks has proceeded over the last few decades to the point where a number of scientific and commercial networks are firmly established - albeit using different philosophies of design and operation. Many of these networks are serving similar communities having the same basic computer needs and those communities where the computer resources are complementary. Consequently there is now a considerable interest in the possibility of linking computer networks to provide resource sharing over quite wide geographical distances. The purpose of the Institute organisers was to consider the problems that arise when this form of interlinking is attempted. The problems fall into three categories, namely technical problems, compatibility and management. Only within the last few years have the technical problems been understood sufficiently well to enable interlinking to take place. Consequently considerable value was given during the meeting to discussing the compatibility and management problems that require solution before x FOREWORD global interlinking becomes an accepted and cost effective operation. Existing computer networks were examined in depth and case-histories of their operations were presented by delegates drawn from the international community. The scope and detail of the papers presented should provide a valuable contribution to this emerging field and be useful to Communications Specialists and Managers as well as those concerned with Computer Operations and Development. The Editor would like to acknowledge the financial support and assistance of the NATO Scientific Affairs Division together with the help of his co-director Dr. Howlett, Professor Simon of the University of Paris, and many others who assisted in the organisation of the meeting. Finally thanks are due to the authors of the papers who have provided this extremely valuable compilation. K.G. Beauchamp. Lancaster October 1978 Part 1 INTERNATIONAL NETWORKING
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