A YANG Data Model for the Virtual Router Redundancy Protocol (VRRP)
RFC 8347

Document Type RFC - Proposed Standard (March 2018; No errata)
Last updated 2018-03-28
Replaces draft-liu-rtgwg-yang-vrrp
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- Yang catalog entry for ietf-vrrp@2018-01-09.yang
- Yang impact analysis for draft-ietf-rtgwg-yang-vrrp
Stream WG state Submitted to IESG for Publication
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Send notices to Yingzhen Qu <yingzhen.qu@huawei.com>
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Internet Engineering Task Force (IETF)                       X. Liu, Ed.
Request for Comments: 8347                                   A. Kyparlis
Category: Standards Track                                          Jabil
ISSN: 2070-1721                                                R. Parikh
                                                                  VMware
                                                               A. Lindem
                                                           Cisco Systems
                                                                M. Zhang
                                                     Huawei Technologies
                                                              March 2018

  A YANG Data Model for the Virtual Router Redundancy Protocol (VRRP)

Abstract

   This document describes a data model for the Virtual Router
   Redundancy Protocol (VRRP).  Both versions 2 and 3 of VRRP are
   covered.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8347.

Copyright Notice

   Copyright (c) 2018 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
   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.

Liu, et al.                  Standards Track                    [Page 1]
RFC 8347                        YANG VRRP                     March 2018

Table of Contents

   1. Introduction ....................................................2
      1.1. Terminology ................................................2
      1.2. Tree Diagrams ..............................................3
      1.3. Prefixes in Data Node Names ................................3
   2. Design of the Data Model ........................................3
      2.1. Scope of the Model .........................................3
      2.2. Relationships with the Interface Model and IP Model ........4
      2.3. Protocol Configuration .....................................5
      2.4. Protocol States ............................................6
      2.5. Notifications ..............................................9
   3. Tree Structure .................................................10
   4. YANG Module ....................................................13
   5. IANA Considerations ............................................35
   6. Security Considerations ........................................36
   7. References .....................................................37
      7.1. Normative References ......................................37
      7.2. Informative References ....................................38
   Appendix A. Data Tree Example .....................................40
   Authors' Addresses ................................................45

1.  Introduction

   This document introduces a YANG data model [RFC6020] [RFC7950] for
   the Virtual Router Redundancy Protocol (VRRP) [RFC3768] [RFC5798].
   VRRP provides higher resiliency by specifying an election protocol
   that dynamically assigns responsibility for a virtual router to one
   of the VRRP routers on a LAN.

   The YANG module specified in this document supports both versions 2
   and 3 of VRRP.  VRRP version 2 (defined in [RFC3768]) supports IPv4.
   VRRP version 3 (defined in [RFC5798]) supports both IPv4 and IPv6.

1.1.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

Liu, et al.                  Standards Track                    [Page 2]
RFC 8347                        YANG VRRP                     March 2018

   The following terms are defined in [RFC7950] and are not redefined
   here:

   o  augment

   o  data model

   o  data node

1.2.  Tree Diagrams

   A simplified graphical representation of the data model is used in
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