Signaling Extensions for Wavelength Switched Optical Networks
RFC 7689

Document Type RFC - Proposed Standard (November 2015; No errata)
Last updated 2015-11-18
Replaces draft-bernstein-ccamp-wson-signaling
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Internet Engineering Task Force (IETF)                 G. Bernstein, Ed.
Request for Comments: 7689                             Grotto Networking
Category: Standards Track                                          S. Xu
ISSN: 2070-1721                                                     NICT
                                                             Y. Lee, Ed.
                                                                  Huawei
                                                           G. Martinelli
                                                                   Cisco
                                                                H. Harai
                                                                    NICT
                                                           November 2015

     Signaling Extensions for Wavelength Switched Optical Networks

Abstract

   This document provides extensions to Generalized Multiprotocol Label
   Switching (GMPLS) signaling for control of Wavelength Switched
   Optical Networks (WSONs).  Such extensions are applicable in WSONs
   under a number of conditions including: (a) when optional processing,
   such as regeneration, must be configured to occur at specific nodes
   along a path, (b) where equipment must be configured to accept an
   optical signal with specific attributes, or (c) where equipment must
   be configured to output an optical signal with specific attributes.
   This document provides mechanisms to support distributed wavelength
   assignment with a choice of distributed wavelength assignment
   algorithms.

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/rfc7689.

Bernstein, et al.            Standards Track                    [Page 1]
RFC 7689                WSON Signaling Extensions          November 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   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.

Table of Contents

   1. Introduction ....................................................3
   2. Terminology .....................................................3
      2.1. Conventions Used in This Document ..........................4
   3. Requirements for WSON Signaling .................................4
      3.1. WSON Signal Characterization ...............................4
      3.2. Per-Node Processing Configuration ..........................5
      3.3. Bidirectional WSON LSPs ....................................5
      3.4. Distributed Wavelength Assignment Selection Method .........6
      3.5. Optical Impairments ........................................6
   4. WSON Signal Traffic Parameters, Attributes, and Processing ......6
      4.1. Traffic Parameters for Optical Tributary Signals ...........7
      4.2. WSON Processing Hop Attribute TLV ..........................7
           4.2.1. ResourceBlockInfo Sub-TLV ...........................8
           4.2.2. WavelengthSelection Sub-TLV .........................9
   5. Security Considerations ........................................11
   6. IANA Considerations ............................................11
   7. References .....................................................13
      7.1. Normative References ......................................13
      7.2. Informative References ....................................14
   Acknowledgments ...................................................15
   Contributors ......................................................15
   Author's Addresses ................................................16

Bernstein, et al.            Standards Track                    [Page 2]
RFC 7689                WSON Signaling Extensions          November 2015
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