YANG Data Model for Layer 3 TE Topologies
draft-ietf-teas-yang-l3-te-topo-08
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Network Working Group                                             X. Liu
Internet-Draft                                            Volta Networks
Intended status: Standards Track                              I. Bryskin
Expires: January 13, 2021                                     Individual
                                                               V. Beeram
                                                                 T. Saad
                                                        Juniper Networks
                                                                 H. Shah
                                                                   Ciena
                                                     O. Gonzalez de Dios
                                                              Telefonica
                                                           July 12, 2020

               YANG Data Model for Layer 3 TE Topologies
                   draft-ietf-teas-yang-l3-te-topo-08

Abstract

   This document defines a YANG data model for layer 3 traffic
   engineering topologies.

Status of This Memo

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   This document is subject to BCP 78 and the IETF Trust's Legal
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   (https://trustee.ietf.org/license-info) in effect on the date of
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Liu, et al.             Expires January 13, 2021                [Page 1]
Internet-Draft             YANG L3 TE Topology                 July 2020

   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Modeling Considerations for L3 TE Topologies  . . . . . . . .   3
     2.1.  Relationship Between Layer 3 Unicast Topology and TE
           topology  . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Relationship Modeling . . . . . . . . . . . . . . . . . .   5
       2.2.1.  Topology Referencing  . . . . . . . . . . . . . . . .   5
       2.2.2.  Node Referencing  . . . . . . . . . . . . . . . . . .   6
       2.2.3.  Link Termination Point Referencing  . . . . . . . . .   6
       2.2.4.  Link Referencing  . . . . . . . . . . . . . . . . . .   6
     2.3.  Topology Type Modeling  . . . . . . . . . . . . . . . . .   7
   3.  Packet Switching Technology Extensions  . . . . . . . . . . .   7
     3.1.  Technology Specific Link Attributes . . . . . . . . . . .   7
     3.2.  Performance Metric  . . . . . . . . . . . . . . . . . . .   7
   4.  Complete Model Tree Structure . . . . . . . . . . . . . . . .   8
     4.1.  Layer 3 TE Topology Module  . . . . . . . . . . . . . . .   8
     4.2.  Packet Switching TE Topology Module . . . . . . . . . . .   9
   5.  YANG Modules  . . . . . . . . . . . . . . . . . . . . . . . .  29
     5.1.  Layer 3 TE Topology Module  . . . . . . . . . . . . . . .  29
     5.2.  Packet Switching TE Topology Module . . . . . . . . . . .  34
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  42
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  43
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  46
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  46
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  48
   Appendix A.  Companion YANG Model for Non-NMDA Compliant
                Implementations  . . . . . . . . . . . . . . . . . .  49
     A.1.  Layer 3 TE Topology State Module  . . . . . . . . . . . .  49
     A.2.  Packet Switching TE Topology State Module . . . . . . . .  52
   Appendix B.  Data Tree Example  . . . . . . . . . . . . . . . . .  59
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  69

1.  Introduction
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