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RAP: Internet Route Access Protocol (RFC1476)

IP.com Disclosure Number: IPCOM000002303D
Original Publication Date: 1993-Jun-01
Included in the Prior Art Database: 2019-Feb-10
Document File: 20 page(s) / 27K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Ullmann: AUTHOR

Related Documents

10.17487/RFC1476: DOI

Abstract

This RFC describes an open distance vector routing protocol for use at all levels of the internet, from isolated LANs to the major routers of an international commercial network provider. This memo defines an Experimental Protocol for the Internet community. It does not specify an Internet standard.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 8% of the total text.

Network Working Group R. Ullmann Request for Comments: 1476 Process Software Corporation June 1993

RAP: Internet Route Access Protocol

Status of this Memo

This memo defines an Experimental Protocol for the Internet community. It does not specify an Internet standard. Discussion and suggestions for improvement are requested. Please refer to the current edition of the "IAB Official Protocol Standards" for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Abstract

This RFC describes an open distance vector routing protocol for use at all levels of the internet, from isolated LANs to the major routers of an international commercial network provider.

Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . 2 1.1 Link-State and Distance-Vector . . . . . . . . . . 3 1.2 Terminology . . . . . . . . . . . . . . . . . . . 3 1.3 Philosophy . . . . . . . . . . . . . . . . . . . . 3 2. RAP Protocol . . . . . . . . . . . . . . . . . . . 4 2.1 Command Header Format . . . . . . . . . . . . . . 4 2.1.1 Length field . . . . . . . . . . . . . . . . . . . 4 2.1.2 RAP version . . . . . . . . . . . . . . . . . . . 5 2.2 RAP Commands . . . . . . . . . . . . . . . . . . . 5 2.2.1 No operation . . . . . . . . . . . . . . . . . . . 5 2.2.2 Poll . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.3 Error . . . . . . . . . . . . . . . . . . . . . . 7 2.2.4 Add Route . . . . . . . . . . . . . . . . . . . . 8 2.2.5 Purge Route . . . . . . . . . . . . . . . . . . . 9 3. Attributes of Routes . . . . . . . . . . . . . . . 9 3.1 Metric and Option Format . . . . . . . . . . . . .10 3.1.1 Option Class . . . . . . . . . . . . . . . . . . 10 3.1.2 Type . . . . . . . . . . . . . . . . . . . . . . 10 3.1.3 Format . . . . . . . . . . . . . . . . . . . . . 11 3.2 Metrics and Options . . . . . . . . . . . . . . 11 3.2.1 Distance . . . . . . . . . . . . . . . . . . . . 12 3.2.2 Delay . . . . . . . . . . . . . . . . . . . . . 12 3.2.3 MTU . . . . . . . . . . . . . . . . . . . . . . 12 3.2.4 Bandwidth . . . . . . . . . . . . . . . . . . . 12

Ullmann [Page 1]

RFC 1476 RAP June 1993

3.2.5 Origin . . . . . . . . . . . . . . . . . . . . . 12 3.2.6 Target . . . . . . . . . . . . . . . . . . . . . 13 3.2.7 Packet Cost . . . . . . . . . . . . . . . . . . 13 3.2.8 Time Cost . . . . . . . . . . . . . . . . . . . 13 3.2.9 Source Restriction . . . . . . . . . . . . . . . 14 3.2.10 Destination Restriction . . . . . . . . . . . . 14 3.2.11 Trace . . . . . . . . . . . . . . . . . . . . . 14 3.2.12 AUP . . . . . . . . . . . . . . . . . . . . . . 15 3.2.13 Public . . . . . . . . . . . . . . . . . . . . . 15 4. Procedure . . . . . . . . . . . . . . . . . . . 15 4.1 Receiver filtering . . . . . . . . . . . . . . . 16 4.2 Update of metrics and options . . . . . . . . . 16 4.3 Aggregation . . . . . . . . . . . . . . . . . . 17 4.4 Active route selection . . . . . . . . . . . . . 17 4.5 Transmitter filtering . . . . . . . . . . . . . 17 4.6 Last res...

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