YANG Data Model for IS-IS SRv6
draft-hu-isis-srv6-yang-02
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Network Working Group                                              Z. Hu
Internet-Draft                                       Huawei Technologies
Intended status: Standards Track                                   D. Ye
Expires: May 7, 2020                                       Cisco Systems
                                                                   Y. Qu
                                                                 J. Dong
                                                     Huawei Technologies
                                                        November 4, 2019

                     YANG Data Model for IS-IS SRv6
                       draft-hu-isis-srv6-yang-02

Abstract

   This document defines a YANG data model that can be used to configure
   and manage IS-IS SRv6 [I-D.ietf-lsr-isis-srv6-extensions].

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 RFC 2119 [RFC2119].

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 May 7, 2020.

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

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   (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
   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
   2.  IS-IS SRv6  . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  IS-IS SRv6 configuration  . . . . . . . . . . . . . . . . . .   5
     3.1.  SRv6 activation . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Locator setting . . . . . . . . . . . . . . . . . . . . .   5
     3.3.  IP Fast reroute . . . . . . . . . . . . . . . . . . . . .   5
     3.4.  Microloop avoidance . . . . . . . . . . . . . . . . . . .   6
   4.  IS-IS SRv6 YANG Module  . . . . . . . . . . . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   6.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  19
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  21

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 model that can be used to configure
   and manage IS-IS SRv6 and it is an augmentation to the IS- IS YANG
   data model.

2.  IS-IS SRv6

   This document defines a model for IS-IS SRv6 feature.  It is an
   augmentation of the IS-IS base model.

   The IS-IS SRv6 YANG module requires support for the base srv6
   module[I-D.raza-spring-srv6-yang], which defines the global srv6
   configuration independent of any specific routing protocol

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   configuration, and support of IS-IS base model
   [I-D.ietf-isis-yang-isis-cfg] which defines basic IS-IS configuration
   and state.

   The figure below describes the overall structure of the isis-srv6
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