Browse Prior Art Database

Benchmarking Terminology for LAN Switching Devices (RFC2285)

IP.com Disclosure Number: IPCOM000002847D
Original Publication Date: 1998-Feb-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 21 page(s) / 40K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Mandeville: AUTHOR

Abstract

This document is intended to provide terminology for the benchmarking of local area network (LAN) switching devices. It extends the terminology already defined for benchmarking network interconnect devices in RFCs 1242 and 1944 to switching devices.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group R. Mandeville

Request for Comments: 2285 European Network Laboratories

Category: Informational February 1998

Benchmarking Terminology for LAN Switching Devices

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.

Table of Contents

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

2. Existing definitions . . . . . . . . . . . . . . . . . . . . . . 2

3. Term definitions . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1 Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1.1 Device under test (DUT) . . . . . . . . . . . . . . . . 3

3.1.2 System under test (SUT) . . . . . . . . . . . . . . . . 3

3.2 Traffic orientation. . . . . . . . . . . . . . . . . . . . . 4

3.2.1 Unidirectional traffic. . . . . . . . . . . . . . . . . 4

3.2.2 Bidirectional traffic . . . . . . . . . . . . . . . . . 5

3.3 Traffic distribution . . . . . . . . . . . . . . . . . . . . 6

3.3.1 Non-meshed traffic. . . . . . . . . . . . . . . . . . . 6

3.3.2 Partially meshed traffic. . . . . . . . . . . . . . . . 7

3.3.3 Fully meshed traffic. . . . . . . . . . . . . . . . . . 8

3.4 Bursts . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.4.1 Burst . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.4.2 Burst size . . . . . . . . . . . . . . . . . . . . . . 10

3.4.3 Inter-burst gap (IBG). . . . . . . . . . . . . . . . . 10

3.5 Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.5.1 Intended load (Iload) . . . . . . . . . . . . . . . . 11

3.5.2 Offered load (Oload) . . . . . . . . . . . . . . . . . 12

3.5.3 Maximum offered load (MOL) . . . . . . . . . . . . . . 13

3.5.4 Overloading . . . . . . . . . . . . . . . . . . . . . 14

3.6 Forwarding rates . . . . . . . . . . . . . . . . . . . . . 15

3.6.1 Forwarding rate (FR) . . . . . . . . . . . . . . . . . 15

3.6.2 Forwarding rate at maximum offered load (FRMOL). . . . 16

3.6.3 Maximum forwarding rate (MFR). . . . . . . . . . . . . 16

3.7 Congestion control . . . . . . . . . . . . . . . . . . . . 17

3.7.1 Backpressure . . . . . . . . . . . . . . . . . . . . . 17

3.7.2 Forward pressure . . . . . . . . . . . . . . . . . . . 18

3.7.3 Head of line blockin...