Network Working Group Bob Anderson Request for Comments: 138 Rand NIC 6715 Vint Cerf UCLA Eric Harslem John Heafner Rand Jim Madden U. of Illinois Bob Metcalfe MIT Arie Shoshani SDC Jim White UCSB David Wood Mitre 28 April 1971 STATUS REPORT ON PROPOSED DATA RECONFIGURATION SERVICE CONTENTS I. INTRODUCTION ................................. 2 Purpose of this RFC .......................... 2 Motivation ................................... 2 II. OVERVIEW OF DATA RECONFIGURATION SERVICE ..... 3 Elements of Data Reconfiguration Service ..... 3 Conceptual Network Connections ............... 3 Connection Protocols and Message Formats ..... 4 Example Connection Configurations ............ 6 III. THE FORM MACHINE ............................. 7 Input/Output Stream and Forms ................ 7 Form Machine BNF Syntax ...................... 7 Alternate Specification of Form Machine Syntax 8 Forms ........................................ 9 Rules ........................................ 10 Terms ........................................ 10 Term Format 1 .............................. 11 Term Format 2 .............................. 11 Term Format 3 .............................. 13 Term Format 4 .............................. 13 Application of a Term ...................... 14 Anderson, et al.