PCEP Extension for Flexible Grid Networks
draft-ietf-pce-flexible-grid-01

Document Type Active Internet-Draft (pce WG)
Last updated 2019-03-11
Replaces draft-lee-pce-flexible-grid
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PCE Working Group                                       Y. Lee (Editor)
Internet Draft                                                 H. Zheng
Intended status: Standard Track                                  Huawei
Expires: September 12, 2019
                                                            R. Casellas
                                                             R. Vilalta
                                                                    CTTC

                                                           D. Ceccarelli
                                                             F. Lazzeri
                                                               Ericsson

                                                         March 11, 2019

                 PCEP Extension for Flexible Grid Networks

                      draft-ietf-pce-flexible-grid-01

Abstract

   This document provides the Path Computation Element Communication
   Protocol (PCEP) extensions for the support of Routing and Spectrum
   Assignment (RSA) in Flexible Grid networks.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with
   the provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
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   The list of Internet-Draft Shadow Directories can be accessed at
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   This Internet-Draft will expire on September 12, 2019.

Copyright Notice

   Copyright (c) 2019 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
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   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. Terminology....................................................3
   2. Requirements Language..........................................3
   3. Introduction...................................................3
   4. Spectrum Assignment (SA) Object................................4
      4.1. Frequency-Slot Selection TLV..............................6
      4.2. Frequency-slot Restriction Constraint TLV.................8
         4.2.1. Frequency-Slot Restriction Field....................10
   5. Encoding of a RSA Path Reply..................................10
      5.1. Error Indicator..........................................12
      5.2. NO-PATH Indicator........................................12
   6. Manageability Considerations..................................13
      6.1. Control of Function and Policy...........................13
      6.2. Information and Data Models..............................13
      6.3. Verifying Correct Operation..............................13
      6.4. Requirements on Other Protocols and Functional Components14
      6.5. Impact on Network Operation..............................14
   7. Security Considerations.......................................14
   8. IANA Considerations...........................................14
      8.1. New PCEP Object..........................................14
      8.2. New PCEP TLV: Frequency Slot Selection TLV...............15
      8.3. New PCEP TLV: Frequency Slot Restriction Constraint TLV..15
      8.4. New PCEP TLV: Spectrum Allocation TLV....................15
      8.5. New No-Path Reasons......................................16
      8.6. New Error-Types and Error-Values.........................16
   9. References....................................................17

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      9.1. Normative References.....................................17
      9.2. Informative References...................................18
   10. Contributors.................................................19
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