YANG Data Model for Segment Routing
draft-ietf-spring-sr-yang-14
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Last updated 2019-11-03
Replaces draft-litkowski-spring-sr-yang
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SPRING Working Group                                        S. Litkowski
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                                   Y. Qu
Expires: May 6, 2020                                           Futurewei
                                                               A. Lindem
                                                           Cisco Systems
                                                               P. Sarkar
                                                              Individual
                                                             J. Tantsura
                                                                  Apstra
                                                        November 3, 2019

                  YANG Data Model for Segment Routing
                      draft-ietf-spring-sr-yang-14

Abstract

   This document defines a YANG data model ([RFC6020], [RFC7950]) for
   segment routing ([RFC8402]) configuration and operation.  This YANG
   model is intended to be used on network elements to configure or
   operate segment routing.  This document defines also generic
   containers that SHOULD be reused by IGP protocol modules to support
   segment routing.

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire on May 6, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Litkowski, et al.          Expires May 6, 2020                  [Page 1]
Internet-Draft                 sr-yang-cfg                 November 2019

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://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
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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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology and Notation  . . . . . . . . . . . . . . . . . .   3
     2.1.  Tree diagram  . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Prefixes in Data Node Names . . . . . . . . . . . . . . .   3
   3.  Design of the Data Model  . . . . . . . . . . . . . . . . . .   3
   4.  Configuration . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  IGP Control plane configuration . . . . . . . . . . . . . . .   6
     5.1.  IGP interface configuration . . . . . . . . . . . . . . .   7
       5.1.1.  Adjacency SID properties  . . . . . . . . . . . . . .   7
         5.1.1.1.  Bundling  . . . . . . . . . . . . . . . . . . . .   7
         5.1.1.2.  Protection  . . . . . . . . . . . . . . . . . . .   8
   6.  States  . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  Notifications . . . . . . . . . . . . . . . . . . . . . . . .   8
   8.  YANG Module . . . . . . . . . . . . . . . . . . . . . . . . .   8
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  25
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  26
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  26
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  27
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  27
     12.2.  Informative References . . . . . . . . . . . . . . . . .  28
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  29

1.  Introduction

   This document defines a YANG data model for segment routing
   configuration and operation.  This document does not define the IGP
   extensions to support segment routing but defines generic groupings
   that SHOULD be reused by IGP extension modules.  The reason of this
   design choice is to not require implementations to support all IGP
   extensions.  For example, an implementation may support IS-IS
   extension but not OSPF.

   The YANG modules in this document conform to the Network Management
   Datastore Architecture (NMDA) [RFC8342].

Litkowski, et al.          Expires May 6, 2020                  [Page 2]
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