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Benchmarking Basic OSPF Single Router Control Plane Convergence
RFC 4061

Document type: RFC - Informational (April 2005; No errata)
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 4061 (Informational)
Responsible AD: David Kessens
Send notices to: <kdubray@juniper.net>, <acmorton@att.com>

Network Working Group                                          V. Manral
Request for Comments: 4061                                  SiNett Corp.
Category: Informational                                         R. White
                                                           Cisco Systems
                                                               A. Shaikh
                                                    AT&T Labs (Research)
                                                              April 2005

    Benchmarking Basic OSPF Single Router Control Plane Convergence

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

   This document provides suggestions for measuring OSPF single router
   control plane convergence.  Its initial emphasis is on the control
   plane of a single OSPF router.  We do not address forwarding plane
   performance.

   NOTE: In this document, the word "convergence" relates to single
   router control plane convergence only.

Table of Contents

   1.  Introduction....................................................2
   2.  Specification of Requirements...................................2
   3.  Overview and Scope..............................................3
   4.  Reference Topologies............................................4
   5.  Basic Performance Tests.........................................5
       5.1.  Time Required to Process an LSA...........................5
       5.2.  Flooding Time.............................................6
       5.3.  Shortest Path First Computation Time......................6
   6.  Basic Intra-area OSPF Tests.....................................8
       6.1.  Forming Adjacencies on Point-to-Point Links
             (Initialization)..........................................9
       6.2.  Forming Adjacencies on Point-to-Point Links...............9
       6.3.  Forming Adjacencies with Information Already in the
             Database.................................................10
       6.4.  Designated Router Election Time on a Broadcast Network...11

Manral, et al.               Informational                      [Page 1]
RFC 4061                Basic OSPF Benchmarking               April 2005

       6.5.  Initial Convergence Time on a Broadcast Network,
             Test 1...................................................11
       6.6.  Initial Convergence Time on a Broadcast Network,
             Test 2...................................................12
       6.7.  Link Down with Layer Two Detection.......................12
       6.8.  Link Down with Layer Three Detection.....................13
   7.  Security Considerations........................................13
   8.  Acknowledgements...............................................13
   9.  Normative References...........................................14
   10. Informative References.........................................14
   Authors' Addresses.................................................15
   Full Copyright Statement...........................................16

1.  Introduction

   There is a growing interest in routing protocol convergence testing,
   with many people looking at various tests to determine how long it
   takes for a network to converge after various conditions occur.  The
   major problem with this sort of testing is that the framework of the
   tests has a major impact on the results; for instance, determining
   when a network is converged, what parts of the router's operation are
   considered within the testing, and other such things will have a
   major impact on the apparent performance that routing protocols
   provide.

   This document attempts to provide a framework for Open Shortest Path
   First [OSPF] performance testing, and to provide some tests for
   measuring some aspects of OSPF performance.  The motivation of the
   document is to provide a set of tests that can provide the user
   comparable data from various vendors with which to evaluate the OSPF
   protocol performance on the devices.

2.  Specification of Requirements

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].  RFC 2119
   key words in this document are used to ensure methodological control,
   which is very important in the specification of benchmarks.  This
   document does not specify a network-related protocol.

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