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Graceful OSPF Restart Implementation Report (RFC4167)

IP.com Disclosure Number: IPCOM000129249D
Original Publication Date: 2005-Oct-01
Included in the Prior Art Database: 2005-Oct-04
Document File: 7 page(s) / 12K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A. Lindem: AUTHOR

Abstract

Graceful OSPF Restart, as specified in RFC 3623, provides a mechanism whereby an OSPF router can stay on the forwarding path even as its OSPF software is restarted. This document provides an implementation report for this extension to the base OSPF protocol.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 24% of the total text.

Network Working Group                                          A. Lindem
Request for Comments: 4167                            Cisco Systems, Inc
Category: Informational                                     October 2005


              Graceful OSPF Restart Implementation 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 (2005).

Abstract

   Graceful OSPF Restart, as specified in RFC 3623, provides a mechanism
   whereby an OSPF router can stay on the forwarding path even as its
   OSPF software is restarted.  This document provides an implementation
   report for this extension to the base OSPF protocol.

Table of Contents

   1. Overview ........................................................2
   2. Implementation Experience .......................................2
      2.1. Implementation Differences .................................2
   3. MIB Reference ...................................................3
   4. Authentication Mechanisms .......................................3
   5. List of Implementations .........................................3
   6. Test Scenarios ..................................................3
   7. Operational Experience ..........................................4
   8. Security Considerations .........................................4
   9. Normative References ............................................4
   10. Informative References .........................................4
   11. Acknowledgments ................................................5

Lindem                       Informational                      [Page 1]
RFC 4167      Graceful OSPF Restart Implementation Report   October 2005


1.  Overview

   Today, many Internet routers implement a separation of control and
   forwarding functions.  Certain processors are dedicated to control
   and management tasks such as OSPF routing, while other processors
   perform the data forwarding tasks.  This separation creates the
   possibility of maintaining a router's data forwarding capability
   while the router's control software is restarted/reloaded.  For the
   OSPF protocol [OSPF], the protocol mechanisms necessary to accomplish
   this are described in Graceful OSPF Restart [GRACE].

   This document satisfies the RFC 1264 [CRITERIA] requirement for a
   report on implementation experience for Graceful OSPF Restart.
   Section 2 of this document contains the results of an implementation
   survey.  It also documents implementation differences between the
   vendors responding to the survey.  Section 3 contains a MIB
   refer...