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OSPF Standardization Report (RFC2329)

IP.com Disclosure Number: IPCOM000002896D
Original Publication Date: 1998-Apr-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 6 page(s) / 14K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Moy: AUTHOR

Abstract

o OSPF responds quickly to topology changes, expending a minimum of network bandwidth in the process.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 19% of the total text.

Network Working Group J. Moy

Request for Comments: 2329 Ascend Communications, Inc.

Category: Informational April 1998

OSPF Standardization Report

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard of any kind. Distribution of this

memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

Abstract

This memo documents how the requirements for advancing a routing

protocol to Full Standard, set out in [Ref2], have been met for

OSPFv2.

Please send comments to ospf@gated.cornell.edu.

Table of Contents

1 Introduction ........................................... 2

2 Modifications since Draft Standard status .............. 3

2.1 Point-to-MultiPoint interface .......................... 4

2.2 Cryptographic Authentication ........................... 5

3 Updated implementation and deployment experience ....... 5

4 Protocol Security ...................................... 7

References ............................................. 8

Security Considerations ................................ 8

Author's Address ....................................... 8

Full Copyright Statement ............................... 9

1. Introduction

OSPFv2, herein abbreviated simply as OSPF, is an IPv4 routing

protocol documented in [Ref8]. OSPF is a link-state routing

protocol. It is designed to be run internal to a single Autonomous

System. Each OSPF router maintains an identical database describing

the Autonomous System's topology. From this database, a routing

table is calculated by constructing a shortest-path tree. OSPF

features include the following:

o OSPF responds quickly to topology changes, expending a minimum

of network bandwidth in the process.

o Support for CIDR addressing.

o OSPF routing exchanges can be authenticated, providing routing

security.

o Equal-cost multipath.

o An area routing capability is provided, enabling an Autonomous

system to be split into a two level hierarchy to further reduce

the amount of routing protocol traffic.

o OSPF allows import of external routing information into the

Autonomous System, including a tagging feature that can be

exploited to exchange extra information at the AS boundary (see

[Ref7]).

An analysis of OSPF together with a more detailed description of

OSPF features was originally provided in [Ref6], as a part of

promoting OSPF to Draft Standard status. The analysis of OSPF

rema...