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Path Computation Element Communication Protocol (PCEP) Requirements for Wavelength Switched Optical Network (WSON) Routing and Wavelength Assignment (RFC7449)

IP.com Disclosure Number: IPCOM000240479D
Original Publication Date: 2015-Feb-01
Included in the Prior Art Database: 2015-Feb-04
Document File: 24 page(s) / 25K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

Y. Lee: AUTHOR [+8]

Abstract

[RFC4655] defines the PCE-based architecture and explains how a Path Computation Element (PCE) may compute Label Switched Paths (LSPs) in networks controlled by Multiprotocol Label Switching Traffic Engineering (MPLS-TE) and Generalized MPLS (GMPLS) at the request of Path Computation Clients (PCCs). A PCC is shown to be any network component that makes such a request and may be, for instance, an optical switching element within a Wavelength Division Multiplexing (WDM) network. The PCE itself can be located anywhere within the network; it may be within an optical switching element, a Network Management System (NMS), or an Operational Support System (OSS), or it may be an independent network server.

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Internet Engineering Task Force (IETF)                       Y. Lee, Ed. Request for Comments: 7449                                        Huawei Category: Informational                                G. Bernstein, Ed. ISSN: 2070-1721                                        Grotto Networking                                                            J. Martensson                                                                    Acreo                                                                T. Takeda                                                                      NTT                                                             T. Tsuritani                                                                     KDDI                                                      O. Gonzalez de Dios                                                               Telefonica                                                            February 2015

   Path Computation Element Communication Protocol (PCEP) Requirements              for Wavelength Switched Optical Network (WSON)                    Routing and Wavelength Assignment

Abstract

   This memo provides application-specific requirements for the Path    Computation Element Communication Protocol (PCEP) for the support of    Wavelength Switched Optical Networks (WSONs).  Lightpath provisioning    in WSONs requires a Routing and Wavelength Assignment (RWA) process.    From a path computation perspective, wavelength assignment is the    process of determining which wavelength can be used on each hop of a    path and forms an additional routing constraint to optical light path    computation.  Requirements for PCEP extensions in support of optical    impairments will be addressed in a separate document.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Not all documents    approved by the IESG are a candidate...