PCEP Extension for Flexible Grid Networks
draft-ietf-pce-flexible-grid-02

Document Type Active Internet-Draft (pce WG)
Last updated 2019-09-10
Replaces draft-lee-pce-flexible-grid
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PCE Working Group                                              Y. Lee  
Internet Draft                                                   SKKU 
Intended status: Standard Track                                       
Expires: March 10, 2020                               H. Zheng (Editor) 
                                                                 Huawei 
                                                          R. Casellas         
                                                             R. Vilalta         
                                                                  CTTC 
                                                                              
                                                          D. Ceccarelli 
                                                           F. Lazzeri 
                                                               Ericsson  
                                                                      
                                   
                                   
                                                    September 10, 2019 
 
                                      
                 PCEP Extension for Flexible Grid Networks 

                      draft-ietf-pce-flexible-grid-02 

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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   reference material or to cite them other than as "work in progress." 

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   The list of Internet-Draft Shadow Directories can be accessed at 
   http://www.ietf.org/shadow.html. 
 
 
 
Lee, et al               Expires March 2020                   [Page 1] 


Internet-Draft    PCEP Extension for Flexible Grid      September 2019 
    

   This Internet-Draft will expire on June 19, 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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   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........................................ 11 
      5.2. NO-PATH Indicator ..................................... 12 
   6. Manageability Considerations ............................... 12 
      6.1. Control of Function and Policy ........................ 12 
      6.2. Information and Data Models ........................... 13 
      6.3. Verifying Correct Operation ........................... 13 
      6.4. Requirements on Other Protocols and Functional Components13 
      6.5. Impact on Network Operation ........................... 13 
   7. Security Considerations .................................... 13 
   8. IANA Considerations ........................................ 14 
      8.1. New PCEP Object........................................ 14 
      8.2. New PCEP TLV: Frequency Slot Selection TLV ............. 14 
      8.3. New PCEP TLV: Frequency Slot Restriction Constraint TLV. 14 
      8.4. New PCEP TLV: Spectrum Allocation TLV .................. 15 
      8.5. New No-Path Reasons ................................... 15 
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