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Host Access Protocol specification (RFC0907)

IP.com Disclosure Number: IPCOM000003957D
Original Publication Date: 1984-Jul-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

Bolt: AUTHOR [+3]

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 2% of the total text.

RFC 907

HOST ACCESS PROTOCOL SPECIFICATION

July 1984

prepared for

Defense Advanced Research Projects Agency

1400 Wilson Boulevard

Arlington, Virginia 22209

by

Bolt Beranek and Newman Laboratories

10 Moulton Street

Cambridge, Massachusetts 02238

RFC 907 Host Access Protocol

July 1984 Specification

Preface (Status of this Memo)

This document specifies the Host Access Protocol (HAP).

Although HAP was originally designed as the network-access level

protocol for the DARPA/DCA sponsored Wideband Packet Satellite

Network, it is intended that it evolve into a standard interface

between hosts and packet-switched satellite networks such as

SATNET and TACNET (aka MATNET) as well as the Wideband Network.

The HAP specification presented here is a minor revision of, and

supercedes, the specification presented in Chapter 4 of BBN

Report No. 4469, the "PSAT Technical Report". As such, the

details of the current specification are still most closely

matched to the characteristics if the Wideband Satellite Network.

Revisions to the specification in the "PSAT Technical Report"

include the definition of three new control message types

(Loopback Request, Link Going Down, and NOP), a "Reason" field in

Restart Request control messages, new Unnumbered Response codes,

and new values for the setup codes used to manage streams and

groups.

HAP is an experimental protocol, and will undergo further

revision as new capabilities are added and/or different satellite

networks are supported. Implementations of HAP should be

performed in coordination with satellite network development and

operations personnel.

RFC 907 Host Access Protocol

July 1984 Specification

Table of Contents

1 Introduction.......................................... 1

2 Overview.............................................. 3

3 Datagram Messages..................................... 8

4 Stream Messages...................................... 14

5 Flow Control Messages................................ 17

6 Setup Level Messages................................. 24

6.1 Stream Setup Messages.............................. 32

6.2 Group Setup Messages............................... 44

7 Link Monitoring...................................... 58

8 Initialization....................................... 62

9 Loopback Control................................