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Final text of DIS 8473, Protocol for Providing the Connectionless-mode Network Service (RFC0994)

IP.com Disclosure Number: IPCOM000004991D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2001-Jul-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

International Organization for Standardization: AUTHOR

Abstract

This Protocol Standard is one of a set of International Standards produced to facilitate the interconnection of open systems. The set of standards covers the services and protocols required to achieve such interconnection.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 3% of the total text.

Network Working Group ANSI X3S3.3 86-80 Request for Comments: 994 ISO TC97/SC6/N 3998

March 1986

I S O INTERNATIONAL ORGANIZATION FOR STANDARDIZATION

ORGANISATION INTERNATIONALE DE NORMALISATION

ISO/TC 97/SC 6 TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS Secretariat: USA (ANSI)

Title: Final Text of DIS 8473, Protocol for Providing the Connectionless-

mode Network Service

Source: DIS 8473 Editor

ISO 8473 [Page 1]

RFC 994 December 1986

Contents

1 Scope and Field of Application 6

2 References 7

SECTION ONE. GENERAL 9

3 Definitions 9 3.1 Reference Model Definitions . . . . . . . . . . . . . . . . . 9 3.2 Service Conventions Definitions . . . . . . . . . . . . . . . 9 3.3 Network Layer Architecture Definitions . . . . . . . . . . . . 9 3.4 Network Layer Addressing Definitions . . . . . . . . . . . . . 10 3.5 Additional Definitions . . . . . . . . . . . . . . . . . . . . 10

4 Symbols and Abbreviations 11 4.1 Data Units . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.2 Protocol Data Units . . . . . . . . . . . . . . . . . . . . . 11 4.3 Protocol Data Unit Fields . . . . . . . . . . . . . . . . . . 11 4.4 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.5 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Overview of the Protocol 12 5.1 Internal Organization of the Network Layer . . . . . . . . . . 12 5.2 Subsets of the Protocol . . . . . . . . . . . . . . . . . . . 12 5.3 Addresses and Titles . . . . . . . . . . . . . . . . . . . . . 13 5.3.1 Addresses . . . . . . . . . . . . . . . . . . . . . . 13

5.3.2 Network-entity Titles . . . . . . . . . . . . . . . . 13 5.4 Service Provided by the Network Layer . . . . . . . . . . . . 14 5.5 Underlying Service Assumed by the Protocol . . . . . . . . . . 14 5.5.1 Subnetwork Points of Attachment . . . . . . . . . . . 15 5.5.2 Subnetwork Quality of Service . . . . . . . . . . . . 15 5.5.3 Subnetwork User Data . . . . . . . . . . . . . . . . 16

5.5.4 Subnetwork Dependent Convergence Functions . . . . . . 16 5.6 Service Assumed from Local Environment . . . . . . . . . . . . 16

SECTION TWO. SPECIFICATION OF THE PROTOCOL 18

6 Protocol Functions 18 6.1 PDU Composition Function . . . . . . . . . . . . . . . . . . . 18 6.2 PDU Decomposition Function . . . . . . . . . . . . . . . . . . 19 6.3 Header Format Analysis Function . . . . . . . . . . . . . . . 19

ISO 8473 [Page 2]

RFC 994 December 1986

6.4 PDU Lifetime Control Function . . . . . . . . . . . . . . . . 20 6.5 Route PDU Function . . . . . . . . . . . . . . . . . . . . . . 20 6.6 Forward PDU Function . . . . . . . . . . . . . . . . . . . . . 21 6.7 Segmentation Function . . . . . . . . . . . . . . . . . . . . 21 6.8 Reassembly Function . . . . . . . . . . . . . . . . . . . . . 22 6.9 Discard PDU Function . . . . . . . . . . . . . . . . ....