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Data Reconfiguration Service: An implementation specification (RFC0166)

IP.com Disclosure Number: IPCOM000004877D
Original Publication Date: 1971-May-25
Included in the Prior Art Database: 2001-Jul-11
Document File: 21 page(s) / 42K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R.H. Anderson: AUTHOR [+9]

Abstract

PURPOSE OF THIS RFC

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group Bob Anderson Request for Comments: 166 Rand NIC 6780 Vint Cerf

UCLA Eric Harslem John Haefner

Rand

Jim Madden U. of Illinois Bob Metcalfe

MIT Arie Shoshani

SDC Jim White

UCSB David Wood

Mitre 25 May 1971

DATA RECONFIGURATION SERVICE AN IMPLEMENTATION SPECIFICATION

CONTENTS

I. INTRODUCTION ................................... 2

Purpose of this RFC ............................ 2 Motivation ..................................... 2

II. OVERVIEW OF THE DATA RECONFIGURATION SERVICE ... 3

Elements of the Data Reconfiguration SERVICE ... 3 Conceptual Network Connections ................. 3 Conception Protocols and Message Formats ....... 4 Example Connection Configurations .............. 7

III. THE FORM MACHINE ............................... 8

Input/Output Streams and Forms ................. 8 Form Machine BNF Syntax ........................ 8 Alternate Specification of Form Machine Syntax . 9 Forms .......................................... 10 Rules .......................................... 10 Terms .......................................... 11

Term Format 1 ................................ 11 Term Format 2 ................................ 11 Term Format 3 ................................ 14 Term Format 4 ................................ 14

Anderson, et al. [Page 1]

RFC 166 Data Reconfiguration Service May 1971

The Application of a Term .................... 14 Restrictions and Interpretations of Term

Functions .................................. 15

Term and Rule Sequencing ..................... 16

IV. EXAMPLES ....................................... 17

Remarks ........................................ 17 Field Insertion ................................ 17 Deletion ....................................... 17 Variable Length Records ........................ 18 String Length Computation ...................... 18 Transposition .................................. 18 Character Packing and Unpacking ................ 18

I. INTRODUCTION

PURPOSE OF THIS RFC

The Purpose of this RFC is to specify the Data Reconfiguration Service (DRS.)

The DRS experiment involves a software mechanism to reformat Network data streams. The mechanism can be adapted to numerous Network application programs. We hope that the result of the experiment will lead to a future standard service that embodies the principles described in this RFC.

MOTIVATION

Application programs require specific data I/O formats yet the formats are different from program to program. We take the position that the Network should adapt to the individual program requirements rather than changing each program to comply with a standard. This position doesn't preclude the use of standards that describe the formats of regular message contents; it is merely an interpretation of a standard as b...