Path Computation Element Communication Protocol (PCEP) Requirements for Wavelength Switched Optical Network (WSON) Routing and Wavelength Assignment (RFC7449)
Original Publication Date: 2015-Feb-01
Included in the Prior Art Database: 2015-Feb-04
Internet Society Requests For Comment (RFCs)
Y. Lee: AUTHOR [+7]
[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.
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
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...