PCEP Extension for WSON Routing and Wavelength Assignment
draft-lee-pce-wson-rwa-ext-03

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Authors Ramon Casellas  , Young Lee 
Last updated 2011-10-31 (latest revision 2011-07-08)
Replaced by RFC 8780, RFC 8780
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Network Working Group                                       Y. Lee, Ed.
Internet Draft                                      Huawei Technologies

Intended status: Standard                              R. Casellas, Ed.
Expires: April 2012                                              CTTC

                                                       October 31, 2011

         PCEP Extension for WSON Routing and Wavelength Assignment

                     draft-lee-pce-wson-rwa-ext-03.txt

Abstract

   This draft provides the Path Computation Element communication
   Protocol (PCEP) extensions for the support of Routing and Wavelength
   Assignment (RWA) in Wavelength Switched Optical Networks (WSON).
   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.

Status of this Memo

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Internet-Draft       PCEP Extension for WSON RWA           October 2011

   The list of Internet-Draft Shadow Directories can be accessed at
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   This Internet-Draft will expire on April 31, 2009.

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors. All rights reserved.

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Table of Contents

   1. Terminology....................................................3
   2. Requirements Language..........................................3
   3. Introduction...................................................3
   4. Encoding of a RWA Path Request.................................6
      4.1. Wavelength Assignment (WA) Object.........................6
      4.2. Wavelength Restriction Constraint TLV.....................9
         4.2.1. Link Identifier sub-TLV.............................11
         4.2.2. Wavelength Restriction Field sub-TLV................12
      4.3. Signal processing capability restrictions................13
         4.3.1. MODULATION-FORMAT-LIST Restriction TLV..............14
         4.3.2. FEC-LIST Restriction TLV............................15
         4.3.3. Signal Processing Exclusion XRO Sub-Object..........15
         4.3.4. IRO sub-object: signal processing inclusion.........16
         4.3.5. Objective Functions.................................16
   5. Encoding of a RWA Path Reply..................................17
      5.1. Error Indicator..........................................17
      5.2. NO-PATH Indicator........................................18
   6. Manageability Considerations..................................18
      6.1. Control of Function and Policy...........................18
      6.2. Information and Data Models, e.g. MIB module.............19
      6.3. Liveness Detection and Monitoring........................19
      6.4. Verifying Correct Operation..............................19

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      6.5. Requirements on Other Protocols and Functional Components19
      6.6. Impact on Network Operation..............................20
   7. Security Considerations.......................................20
   8. IANA Considerations...........................................20
   9. Acknowledgments...............................................20
   10. References...................................................20
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