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Overview and Principles of Internet Traffic Engineering (RFC3272)

IP.com Disclosure Number: IPCOM000008132D
Original Publication Date: 2002-May-01
Included in the Prior Art Database: 2002-May-21

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Awduche: AUTHOR [+5]

Abstract

This memo describes the principles of Traffic Engineering (TE) in the Internet. The document is intended to promote better understanding of the issues surrounding traffic engineering in IP networks, and to provide a common basis for the development of traffic engineering capabilities for the Internet. The principles, architectures, and methodologies for performance evaluation and performance optimization of operational IP networks are discussed throughout this document.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group                                         D. Awduche

Request for Comments: 3272                                Movaz Networks

Category: Informational                                          A. Chiu

                                                         Celion Networks

                                                              A. Elwalid

                                                              I. Widjaja

                                                     Lucent Technologies

                                                                 X. Xiao

                                                        Redback Networks

                                                                May 2002

        Overview and Principles of Internet Traffic Engineering

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 (2002).  All Rights Reserved.

Abstract

   This memo describes the principles of Traffic Engineering (TE) in the

   Internet.  The document is intended to promote better understanding

   of the issues surrounding traffic engineering in IP networks, and to

   provide a common basis for the development of traffic engineering

   capabilities for the Internet.  The principles, architectures, and

   methodologies for performance evaluation and performance optimization

   of operational IP networks are discussed throughout this document.

Table of Contents

   1.0 Introduction...................................................3

      1.1 What is Internet Traffic Engineering?.......................4

      1.2 Scope.......................................................7

      1.3 Terminology.................................................8

   2.0 Background....................................................11

      2.1 Context of Internet Traffic Engineering....................12

      2.2 Network Context............................................13

      2.3 Problem Context............................................14

         2.3.1 Congestion and its Ramifications......................16

      2.4 Solution Context...........................................16

         2.4.1 Combating the Congestion Problem......................18

      2.5 Implementation and Operational Context.....................21

Awduche, et. al.             Informational                      [Page 1]

RFC 3272        Overview and Principles of Internet TE          May 2002

   3.0 Traffic Engineering Process Model.............................21

      3.1 Components of the Traffic Engineering Process Model........23

      3.2 Measurement................................................23

      3.3 Modeling, Analysis, and Simulation.........................24

      3.4 Optimization...............................................25

   4.0 Historical Review and Recent Developments.....................26

      4.1 Traffic Engineering in Classical Telephone Networks........26

      4.2 Evolution of Traffic Engineering in the Internet...........28

         4.2.1 Adaptive Routing in ARPANET...........................28

         4.2.2 Dynamic Routing in the Internet.......................29

         4.2.3 ToS Routing...........................................30

         4.2.4 Equal Cost Multi-Path.................................30

         4.2.5 Nimrod................................................31

      4.3 Overlay Model..............................................31

      4.4 Constraint-Based Routing...................................32

      4.5 Overview of Other IETF Projects Related to Traffic

          Engineering................................................3...