Network Working Group G. Bernstein
Internet Draft Grotto Networking
Intended status: Standards Track Y. Lee
Expires: May 2014 D. Li
Huawei
W. Imajuku
NTT
November 13, 2013
Routing and Wavelength Assignment Information Encoding for
Wavelength Switched Optical Networks
draft-ietf-ccamp-rwa-wson-encode-23.txt
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Bernstein and Lee Expires May 13, 2014 [Page 1]Internet-Draft Wavelength Switched Optical Networks November 2013
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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).
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC-2119 [RFC2119].
Table of Contents
1. Introduction...................................................3
1. Terminology....................................................4
2. Resources, Resource Blocks, and the Resource Pool..............4
2.1. Resource Block Set Field..................................5
3. Resource Accessibility/Availability............................6
Bernstein and Lee Expires May 13, 2014 [Page 2]Internet-Draft Wavelength Switched Optical Networks November 2013
3.1. Resource Accessibility Field..............................6
3.2. Resource Wavelength Constraints Field.....................8
3.3. Resource Block Pool State (RBPoolState) Field............10
3.4. Resource Block Shared Access Wavelength Availability
(RBSharedAccessWaveAvailability) Field........................11
4. Resource Signal Constraints and Processing Capabilities.......13
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