Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks
RFC 7581
Internet Engineering Task Force (IETF) G. Bernstein, Ed.
Request for Comments: 7581 Grotto Networking
Category: Standards Track Y. Lee, Ed.
ISSN: 2070-1721 D. Li
Huawei
W. Imajuku
NTT
J. Han
Huawei
June 2015
Routing and Wavelength Assignment Information Encoding for
Wavelength Switched Optical Networks
Abstract
A Wavelength Switched Optical Network (WSON) requires certain key
information fields be made available to facilitate path computation
and the establishment of Label Switched Paths (LSPs). The
information model described in "Routing and Wavelength Assignment
Information Model for Wavelength Switched Optical Networks" (RFC
7446) 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 specific to WSONs.
This document provides efficient, protocol-agnostic encodings for the
WSON-specific information fields. 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 of This Memo
This is an Internet Standards Track document.
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). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7581.
Bernstein, et al. Standards Track [Page 1]
RFC 7581 WSON Information Encoding June 2015
Copyright Notice
Copyright (c) 2015 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
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include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Bernstein, et al. Standards Track [Page 2]
RFC 7581 WSON Information Encoding June 2015
Table of Contents
1. Introduction ....................................................4
1.1. Terminology ................................................4
1.2. Conventions Used in This Document ..........................5
2. Resources, Resource Blocks, and the Resource Pool ...............5
2.1. Resource Block Set Field ...................................6
3. Resource Accessibility/Availability .............................7
3.1. Resource Accessibility Field ...............................7
3.2. Resource Wavelength Constraints Field ......................9
3.3. Resource Block Pool State Field ...........................10
3.4. Resource Block Shared Access Wavelength
Availability Field ........................................12
4. Resource Block Information Field ...............................13
4.1. Optical Interface Class List Subfield .....................15
4.1.1. ITU-T G.698.1 Application Code Mapping .............17
4.1.2. ITU-T G.698.2 Application Code Mapping .............18
4.1.3. ITU-T G.959.1 Application Code Mapping .............20
4.1.4. ITU-T G.695 Application Code Mapping ...............22
4.2. Acceptable Client Signal List Subfield ....................23
4.3. Input Bit Rate List Subfield ..............................24
4.4. Processing Capability List Subfield .......................24
5. Security Considerations ........................................26
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