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ARPANET 1822L Host Access Protocol (RFC0802)

IP.com Disclosure Number: IPCOM000003851D
Original Publication Date: 1981-Nov-01
Included in the Prior Art Database: 2004-Aug-15
Document File: 91 page(s) / 61K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A.G. Malis: AUTHOR

Abstract

This document proposes two major changes to the current ARPANET

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 6% of the total text.

                                      

                                              

         RFC 802: The ARPANET 1822L Host Access Protocol

                         Andrew G. Malis

                     Netmail: malis@bbn-unix

                  Bolt Beranek and Newman Inc.

                          November 1981

RFC 802                                           Andrew G. Malis

                        Table of Contents

1   INTRODUCTION.......................................... 1

2   THE ARPANET 1822L HOST ACCESS PROTOCOL................ 4

2.1   Addresses and Names................................. 6

2.2   Name Authorization and Effectiveness................ 8

2.3   Uncontrolled Messages.............................. 14

2.4   The Short-Blocking Feature......................... 15

2.4.1   Host Blocking.................................... 16

2.4.2   Reasons for Host Blockage........................ 19

2.5   Establishing Host-IMP Communications............... 22

3   1822L LEADER FORMATS................................. 25

3.1   Host-to-IMP 1822L Leader Format.................... 26

3.2   IMP-to-Host 1822L Leader Format.................... 34

4   REFERENCES........................................... 42

                              - i -

RFC 802                                           Andrew G. Malis

                             FIGURES

1822 Address Format....................................... 6

1822L Name Format......................................... 7

1822L Address Format...................................... 7

Communications between different host types.............. 13

Host-to-IMP 1822L Leader Format.......................... 27

NDM Message Format....................................... 30

IMP-to-Host 1822L Leader Format.......................... 35

                             - ii -

RFC 802                                           Andrew G. Malis

1  INTRODUCTION

This document proposes two major changes to the  current  ARPANET

host  access  protocol.  The first change will allow hosts to use

logical addressing (i.e., host addresses that are independent  of

their  physical location on the ARPANET) to communicate with each

other, and the second will allow a host to shorten the amount  of

time  that  it  may  be  blocked  by  its IMP after it presents a

message to the network (currently,  the  IMP  can  block  further

input from a host for up to 15 seconds).

The new host access protocol is known as the ARPANET  1822L  (for

Logical)  Host  Access Protocol, and it represents an addition to

the current ARPANET 1822 Host Access Protocol, which is described...