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Terminology for ATM Benchmarking
RFC 2761

Document type: RFC - Informational (February 2000)
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

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IESG State: RFC 2761 (Informational)
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Network Working Group                                           J. Dunn
Request for Comments: 2761                                    C. Martin
Category: Informational                                       ANC, Inc.
                                                          February 2000

                    Terminology for ATM Benchmarking

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 (2000).  All Rights Reserved.

Abstract

   This memo discusses and defines terms associated with performance
   benchmarking tests and the results of these tests in the context of
   Asynchronous Transfer Mode (ATM) based switching devices. The terms
   defined in this memo will be used in addition to terms defined in
   RFCs 1242, 2285, and 2544. This memo is a product of the Benchmarking
   Methodology Working Group (BMWG) of the Internet Engineering Task
   Force (IETF).

Introduction

   This document provides terminology for benchmarking ATM based
   switching devices. It extends terminology already defined for
   benchmarking network interconnect devices in RFCs 1242, 2285, and
   2544. Although some of the definitions in this memo may be applicable
   to a broader group of network interconnect devices, the primary focus
   of the terminology in this memo is on ATM cell relay and signaling.

   This memo contains two major sections: Background and Definitions.
   Within the definitions section is a formal definitions subsection,
   provided as a courtesy to the reader, and a measurement definitions
   sub-section, that contains performance metrics with inherent units.
   The divisions of the measurement sub-section follow the BISDN model.

Dunn & Martin                Informational                      [Page 1]
RFC 2761            Terminology for ATM Benchmarking       February 2000

   The BISDN model comprises four layers and two planes. This document
   addresses the interactions between these layers and how they effect
   IP and TCP throughput. A schematic of the B-ISDN model follows:

   ---------|--------------------------|-------------------------------
            |     User Plane           |       Control Plane
   ---------|--------------------------|--------------------------------
   Services |          IP              |   ILMI   |       UNI, PNNI
   ---------|--------------------------|----------|---------------------
   AAL      | AAL1, AAL2, AAL3/4, AAL5 |   AAL5   |        SAAL
   ---------|--------------------------|----------|---------------------
   ATM      |      Cell Relay          |        OAM, RM
   ---------|--------------------------|--------------------------------
            |       Convergence        |
   Physical |--------------------------|--------------------------------
            |         Media            |
   ---------|--------------------------|--------------------------------

   This document assumes that necessary services are available and
   active.  For example, IP connectivity requires SSCOP connectivity
   between signaling entities.  Further, it is assumed that the SUT has
   the ability to configure ATM addresses (via hard coded addresses,
   ILMI or PNNI neighbor discovery), has the ability to run SSCOP, and
   has the ability to perform signaled call setups (via UNI or PNNI
   signaling).  This document covers only CBR, VBR and UBR traffic
   types.  ABR will be handled in a separate document.  Finally, this
   document presents only the terminology associated with benchmarking
   IP performance over ATM; therefore, it does not represent a total
   compilation of ATM test terminology.

   The BMWG produces two major classes of documents: Benchmarking
   Terminology documents and Benchmarking Methodology documents. The
   Terminology documents present the benchmarks and other related terms.
   The Methodology documents define the procedures required to collect
   the benchmarks cited in the corresponding Terminology documents.

Existing Definitions

   RFC 1242, "Benchmarking Terminology for Network Interconnect Devices"
   should be consulted before attempting to make use of this document.
   RFC 2544, "Benchmarking Methodology for Network Interconnect Devices"
   contains discussions of a number of terms relevant to the
   benchmarking of switching devices and should be consulted.  RFC 2285,
   "Benchmarking Terminology for LAN Switching Devices" contains a
   number of terms pertaining to traffic distributions and datagram
   interarrival.  For the sake of clarity and continuity, this RFC
   adopts the template for definitions set out in Section 2 of RFC 1242.
   Definitions are indexed and grouped together in sections for ease of

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