YANG Data Model for IS-IS Segment Routing
draft-ietf-isis-sr-yang-10
Document Type Active Internet-Draft (lsr WG)
Authors Stephane Litkowski  , Yingzhen Qu  , Pushpasis Sarkar  , Ing-Wher Chen  , Jeff Tantsura 
Last updated 2021-02-21
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IS-IS Working Group                                         S. Litkowski
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                                   Y. Qu
Expires: August 25, 2021                                       Futurewei
                                                               P. Sarkar
                                                              Individual
                                                                 I. Chen
                                                   The MITRE Corporation
                                                             J. Tantsura
                                                                  Apstra
                                                       February 21, 2021

               YANG Data Model for IS-IS Segment Routing
                       draft-ietf-isis-sr-yang-10

Abstract

   This document defines a YANG data module that can be used to
   configure and manage IS-IS Segment Routing, as well as a YANG data
   module for the management of Signaling Maximum SID Depth (MSD) Using
   IS-IS.

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 25, 2021.

Copyright Notice

   Copyright (c) 2021 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
   (https://trustee.ietf.org/license-info) in effect on the date of

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   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this 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.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     1.2.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   2.  IS-IS MSD . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  IS-IS MSD YANG Module . . . . . . . . . . . . . . . . . .   4
   3.  IS-IS Segment Routing . . . . . . . . . . . . . . . . . . . .   8
     3.1.  IS-IS Segment Routing configuration . . . . . . . . . . .  11
       3.1.1.  Segment Routing activation  . . . . . . . . . . . . .  11
       3.1.2.  Advertising mapping server policy . . . . . . . . . .  11
       3.1.3.  IP Fast reroute . . . . . . . . . . . . . . . . . . .  11
     3.2.  IS-IS Segment Routing YANG Module . . . . . . . . . . . .  11
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  26
   5.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  27
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  27
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  27
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .  28
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  30

1.  Overview

   YANG [RFC6020] [RFC7950] is a data definition language used to define
   the contents of a conceptual data store that allows networked devices
   to be managed using NETCONF [RFC6241].  YANG is proving relevant
   beyond its initial confines, as bindings to other interfaces (e.g.,
   ReST) and encodings other than XML (e.g., JSON) are being defined.
   Furthermore, YANG data models can be used as the basis for
   implementation of other interfaces, such as CLI and programmatic
   APIs.

   This document defines a YANG data module that can be used to
   configure and manage IS-IS Segment Routing [RFC8667] and it is an
   augmentation to the IS-IS YANG data model.

   This document also defines a YANG data module for the management of
   Signaling Maximum SID Depth (MSD) Using IS-IS [RFC8491], which
   augments the base IS-IS YANG data model.

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

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