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INTERFACE MESSAGE PROCESSORS FOR THE ARPA COMPUTER NETWORK

IP.com Disclosure Number: IPCOM000128802D
Original Publication Date: 1971-Dec-31
Included in the Prior Art Database: 2005-Sep-19
Document File: 10 page(s) / 36K

Publishing Venue

Software Patent Institute

Related People

Bolt, Beranek & Newman, Inc.: OWNER [+2]

Abstract

!^ This Quarterly Technical Report, No. 10, describes aspects . of our work on the ARPA Computer Network during the second w. quarter of 1971 . Our efforts during this period were devoted primarily, "~ though not exclusively, to the Terminal IMP. The quarter saw the ARPA Network remain stable in size; we used this opportu- nity to study traffic in the net, to plan and implement improve- - ments in the operation of the Network Control Center at BBN, to "" discover and correct some minor bugs in the operational IMP hardware and software, and to continue investigation of routing problems. During the quarter our participation in the Network Working ... , Group increased substantially, with several members of the staff devoting significant amounts of time to Working Group subcom- mittees and to the preparation of Network documents. Some of our activities in this area are described in Section 2. " Work on the Terminal IMP progressed on several fronts. By the end of the quarter we had received three additional 316s ,~., from Honeywell. Two Multi-Line Controllers are in final assembly and three more are under construction. A variety of terminal devices have now been tested with the Terminal IMP hardware and prototype software. Significant portions of the Terminal IMP software have been written and partially debugged, and the Terminal IMP command language has been largely specified. By the end of the quarter a terminal connected to the prototype Terminal IMP had successfully logged into the BBN TENEX system. All of these developments are covered in some detail in Section 3. 1

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THIS DOCUMENT IS AN APPROXIMATE REPRESENTATION OF THE ORIGINAL.

INTERFACE MESSAGE PROCESSORS FOR THE ARPA COMPUTER NETWORK

Bolt Beranek and Newman Inc.

Report No. 2175

QUARTERLY TECHNICAL REPORT NO. 10

"~ 1 April 1971 to 30 June 1971 Submitted to:

Advanced Research Projects Agency Washington, D.C. 22209 Attn: Dr. L.G. Roberts

''~ This research was supported by the Advanced Research Projects Agency of the Department of Defense under Contract No. DAHC-15- 69-C-0179. Report No. 2175 Bolt Beranek and Newman Inc.

1. INTRODUCTION

!^ This Quarterly Technical Report, No. 10, describes aspects . of our work on the ARPA Computer Network during the second w. quarter of 1971 . Our efforts during this period were devoted primarily, "~ though not exclusively, to the Terminal IMP. The quarter saw the ARPA Network remain stable in size; we used this opportu- nity to study traffic in the net, to plan and implement improve- - ments in the operation of the Network Control Center at BBN, to "" discover and correct some minor bugs in the operational IMP hardware and software, and to continue investigation of routing problems. During the quarter our participation in the Network Working ... , Group increased substantially, with several members of the staff devoting significant amounts of time to Working Group subcom- mittees and to the preparation of Network documents. Some of our activities in this area are described in Section 2.

" Work on the Terminal IMP progressed on several fronts. By the end of the quarter we had received three additional 316s ,~., from Honeywell. Two Multi-Line Controllers are in final assembly and three more are under construction. A variety of terminal devices have now been tested with the Terminal IMP hardware and prototype software. Significant portions of the Terminal IMP software have been written and partially debugged, and the Terminal IMP command language has been largely specified. By the end of the quarter a terminal connected to the prototype Terminal IMP had successfully logged into the BBN TENEX system. All of these developments are covered in some detail in Section 3.

2. NETWORK WORKING GROUP PARTICIPATION

Early in 1969 the Network Host organizations formed a Network Working Group (NWG), under the chairmanship of Steve Crocker, to facilitate the exchange of ideas about network use and to formu-late specifications for Host-to-Host communications. Although BBN has participated in the activities of the N',dG since its inception, during the last two quarters we have significantly expanded our participation, and have been particularly involved in the following areas: Host-to- Host Protocol: The so-called Host-to-iIost Protocol was the first protocol developed by the NWG.

Bolt, Beranek & Newman, Inc. Page 1 Dec 31, 1971

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INTERFACE MESSAGE PROCESSORS FOR THE ARPA COMPUTER NETWORK

It is primarily concerned with the method of establish-ing process-to-process "connections" over the network, and with the control...