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Russian Dolls Bandwidth Constraints Model for Diffserv-aware MPLS Traffic Engineering (RFC4127)

IP.com Disclosure Number: IPCOM000126015D
Original Publication Date: 2005-Jun-01
Included in the Prior Art Database: 2005-Jun-28
Document File: 14 page(s) / 24K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. Le Faucheur: AUTHOR [+2]

Abstract

This document provides specifications for one Bandwidth Constraints Model for Diffserv-aware MPLS Traffic Engineering, which is referred to as the Russian Dolls Model.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 11% of the total text.

Network Working Group                                F. Le Faucheur, Ed.
Request for Comments: 4127                           Cisco Systems, Inc.
Category: Experimental                                         June 2005


            Russian Dolls Bandwidth Constraints Model for
                Diffserv-aware MPLS Traffic Engineering

Status of This Memo

   This memo defines an Experimental Protocol for the Internet
   community.  It does not specify an Internet standard of any kind.
   Discussion and suggestions for improvement are requested.
   Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document provides specifications for one Bandwidth Constraints
   Model for Diffserv-aware MPLS Traffic Engineering, which is referred
   to as the Russian Dolls Model.

Table of Contents

   1. Introduction ....................................................2
      1.1. Specification of Requirements ..............................2
   2. Contributing Authors ............................................3
   3. Definitions .....................................................4
   4. Russian Dolls Model Definition ..................................5
   5. Example Formulas for Computing "Unreserved TE-Class [i]" with
      Russian Dolls Model .............................................7
   6. Receiving Both Maximum Reservable Bandwidth and Bandwidth
      Constraints sub-TLVs ............................................8
   7. Security Considerations .........................................8
   8. IANA Considerations .............................................8
   9. Acknowledgements ................................................9
   Appendix A: Addressing [DSTE-REQ] Scenarios .......................10
   Normative References ..............................................11
   Informative References ............................................12

Le Faucheur                   Experimental                      [Page 1]
RFC 4127             Russian Dolls Model for DS-TE             June 2005


1.  Introduction

   [DSTE-REQ] presents the Service Providers requirements for support of
   Diffserv-aware MPLS Traffic Engineering (DS-TE).  This includes the
   fundamental requirement to be able to enforce different Bandwidth
   Constraints for different classes of traffic.

   [DSTE-REQ] also defines the concept of Bandwidth Constraints Model
   for DS-TE and states that "The DS-TE technical solution MUST specify
   at least one Bandwidth Constraints Model and MAY specify multiple
   Bandwidth Constraints Models".

   This document provides a detailed description of one particular
   Bandwidth Constraints Model for DS-TE which is introduc...