WSON Information Encoding

General Network Element Constraint Encoding for GMPLS Controlled Networks

Abstract

Generalized Multiprotocol Label Switching can be used to control a wide variety of technologies. In some of these technologies network elements and links may impose additional routing constraints such as asymmetric switch connectivity, label limitation and label availability on links.

This document provides efficient, protocol-agnostic encodings for general information elements representing connectivity and label constraints as well as label availability. These encodings are applicable to a wide range of technologies and not limited to WSON. It is intended that protocol-specific documents will reference this memo to describe how information is carried for specific uses.

Status and Background

This is a CCAMP working group document. This document is ready for last call. The official document is available at http://datatracker.ietf.org/doc/draft-ietf-ccamp-general-constraint-encode/

Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks

Abstract

A wavelength switched optical network (WSON) requires that certain key information elements are made available to facilitate path computation and the establishment of label switching paths (LSPs). The information model described in "Routing and Wavelength Assignment Information for Wavelength Switched Optical Networks" shows what information is required at specific points in the WSON. Part of the WSON information model contains aspects that may be of general applicability to other technologies, while other parts are fairly specific to WSONs.

This document provides efficient, protocol-agnostic encodings for the WSON specific information elements. It is intended that protocol-specific documents will reference this memo to describe how information is carried for specific uses. Such encodings can be used to extend GMPLS signaling and routing protocols. In addition these encodings could be used by other mechanisms to convey this same information to a path computation element (PCE).
 

Status and Background

This is a CCAMP working group document. This document is ready for last call. The official copy can be found at http://datatracker.ietf.org/doc/draft-ietf-ccamp-rwa-wson-encode/