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Performance Analysis of Inter-Domain Path Computation Methodologies (RFC5468)

IP.com Disclosure Number: IPCOM000181604D
Original Publication Date: 2009-Apr-01
Included in the Prior Art Database: 2009-Apr-07
Document File: 11 page(s) / 24K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Dasgupta: AUTHOR [+3]

Abstract

This document presents a performance comparison between the per- domain path computation method and the Path Computation Element (PCE) Architecture-based Backward Recursive Path Computation (BRPC) procedure. Metrics to capture the significant performance aspects are identified, and detailed simulations are carried out on realistic scenarios. A performance analysis for each of the path computation methods is then undertaken.

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

Network Working Group                                        S. Dasgupta Request for Comments: 5468                                J. de Oliveira Category: Informational                                Drexel University                                                              JP. Vasseur                                                            Cisco Systems                                                               April 2009

   Performance Analysis of Inter-Domain Path Computation Methodologies

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) 2009 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents in effect on the date of    publication of this document (http://trustee.ietf.org/license-info).    Please review these documents carefully, as they describe your rights    and restrictions with respect to this document.

Abstract

   This document presents a performance comparison between the per-    domain path computation method and the Path Computation Element (PCE)    Architecture-based Backward Recursive Path Computation (BRPC)    procedure.  Metrics to capture the significant performance aspects    are identified, and detailed simulations are carried out on realistic    scenarios.  A performance analysis for each of the path computation    methods is then undertaken.

Dasgupta, et al.             Informational                      [Page 1]
 RFC 5468       Analysis of Inter-Domain Path Computation      April 2009

 Table of Contents

   1. Introduction ....................................................2    2. Terminology .....................................................3    3. Evaluation Metrics ..............................................4    4. Simulation Setup ................................................5    5. Results and Analysis ............................................6       5.1. Path Cost ..................................................7       5.2. Crankback/Setup Delay ......................................7       5.3. Signaling Failures .........................................8       5.4. Failed TE-LSPs/Bandwidth on Link Failures ..................8       5.5. TE LSP/Bandwidth Setup Capacity ............................8    6. Security...