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Requirements for IP Version 4 Routers (RFC1812)

IP.com Disclosure Number: IPCOM000004069D
Original Publication Date: 1995-Jun-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. Baker: AUTHOR

Abstract

This memo replaces for RFC 1716, "Requirements for Internet Gateways" ([INTRO:1]).

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 1% of the total text.

Network Working Group F. Baker, Editor

Request for Comments: 1812 Cisco Systems

Obsoletes: 1716, 1009 June 1995

Category: Standards Track

Requirements for IP Version 4 Routers

Status of this Memo

This document specifies an Internet standards track protocol for the

Internet community, and requests discussion and suggestions for

improvements. Please refer to the current edition of the "Internet

Official Protocol Standards" (STD 1) for the standardization state

and status of this protocol. Distribution of this memo is unlimited.

PREFACE

This document is an updated version of RFC 1716, the historical

Router Requirements document. That RFC preserved the significant

work that went into the working group, but failed to adequately

describe current technology for the IESG to consider it a current

standard.

The current editor had been asked to bring the document up to date,

so that it is useful as a procurement specification and a guide to

implementors. In this, he stands squarely on the shoulders of those

who have gone before him, and depends largely on expert contributors

for text. Any credit is theirs; the errors are his.

The content and form of this document are due, in large part, to the

working group's chair, and document's original editor and author:

Philip Almquist. It is also largely due to the efforts of its

previous editor, Frank Kastenholz. Without their efforts, this

document would not exist.

Table of Contents

1. INTRODUCTION ........................................ 6

1.1 Reading this Document .............................. 8

1.1.1 Organization ..................................... 8

1.1.2 Requirements ..................................... 9

1.1.3 Compliance ....................................... 10

1.2 Relationships to Other Standards ................... 11

1.3 General Considerations ............................. 12

1.3.1 Continuing Internet Evolution .................... 12

1.3.2 Robustness Principle ............................. 13

1.3.3 Error Logging .................................... 14

1.3.4 Configuration .................................... 14

1.4 Algorithms ......................................... 16

2. INTERNET ARCHITECTURE ............................... 16

2.1 Introduction ....................................... 16

2.2 Elements of the Architecture ....................... 17

2.2.1 Protocol Layering ................................ 17

2.2.2 Networks ......................................... 19

2.2.3 Routers .......................................... 20

2.2.4 Autonomous Systems ............................... 21

2.2.5 Addressing Architecture .......................... 21

2.2.5.1 Classical IP Addressing Architecture ........... 21

2.2.5.2 Classless Inter Domain Routing (CIDR) ..........