YANG Data Model for Segment Routing
draft-litkowski-spring-sr-yang-00

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SPRING Working Group                                        S. Litkowski
Internet-Draft                                   Orange Business Service
Intended status: Standards Track                               A. Lindem
Expires: September 6, 2015                                 Cisco Systems
                                                               P. Sarkar
                                                        Juniper Networks
                                                                 I. Chen
                                                                Ericsson
                                                          March 05, 2015

                  YANG Data Model for Segment Routing
                   draft-litkowski-spring-sr-yang-00

Abstract

   This document defines a YANG data model for segment routing
   configuration and operation.  This YANG model is intended to be used
   on network elements to configure or operate segment routing.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

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   This Internet-Draft will expire on September 6, 2015.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Tree diagram  . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Design of the Data Model  . . . . . . . . . . . . . . . . . .   3
   3.  Configuration . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Adjacency SID properties  . . . . . . . . . . . . . . . .   5
       3.1.1.  Bundling  . . . . . . . . . . . . . . . . . . . . . .   5
       3.1.2.  Protection  . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Prefix SID properties . . . . . . . . . . . . . . . . . .   6
   4.  Control plane configuration . . . . . . . . . . . . . . . . .   7
   5.  States  . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   6.  Notifications . . . . . . . . . . . . . . . . . . . . . . . .   7
   7.  YANG Module . . . . . . . . . . . . . . . . . . . . . . . . .   8
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
   11. Normative References  . . . . . . . . . . . . . . . . . . . .  20
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  21

1.  Introduction

   This document defines a YANG data model for segment routing
   configuration and operation.

1.1.  Tree diagram

   A simplified graphical representation of the data model is presented
   in Section 2.

   The meaning of the symbols in these diagrams is as follows:

   o  Brackets "[" and "]" enclose list keys.

   o  Curly braces "{" and "}" contain names of optional features that
      make the corresponding node conditional.

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   o  Abbreviations before data node names: "rw" means configuration
      (read-write), and "ro" state data (read-only).

   o  Symbols after data node names: "?" means an optional node and "*"
      denotes a "list" or "leaf-list".

   o  Parentheses enclose choice and case nodes, and case nodes are also
      marked with a colon (":").

   o  Ellipsis ("...") stands for contents of subtrees that are not
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