A YANG Data Model for Layer-2 Network Topologies
draft-ietf-i2rs-yang-l2-network-topology-06

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Last updated 2018-10-22
Replaces draft-dong-i2rs-l2-network-topology
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Network Working Group                                            J. Dong
Internet-Draft                                                    X. Wei
Intended status: Standards Track                                   Q. Wu
Expires: April 25, 2019                              Huawei Technologies
                                                        October 22, 2018

            A YANG Data Model for Layer-2 Network Topologies
              draft-ietf-i2rs-yang-l2-network-topology-06

Abstract

   This document defines a YANG data model for Layer 2 network
   topologies.

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
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   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
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   This Internet-Draft will expire on April 25, 2019.

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

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   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.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Layer 2 Topology Model  . . . . . . . . . . . . . . . . . . .   2
   3.  Layer 2 Topology Yang Module  . . . . . . . . . . . . . . . .   5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  19
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  19
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  20
   Appendix A.  Companion YANG model for non-NMDA compliant
                implementations  . . . . . . . . . . . . . . . . . .  20
   Appendix B.  An Example . . . . . . . . . . . . . . . . . . . . .  24
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  29

1.  Introduction

   [RFC8345] defines the YANG [RFC6020] [RFC7950] data models of the
   abstract (generic) network and network topology.  Such models can be
   augmented with technology-specific details to build more specific
   topology models.

   This document defines the YANG data model for Layer 2 network
   topologies by augmenting the generic network and network topology
   data models with L2 specific topology attributes.

2.  Layer 2 Topology Model

   The Layer 2 network topology model is designed to be generic and
   applicable to Layer 2 networks built with different L2 technologies.
   It can be used to describe both the physical and the logical
   (virtual) L2 network topologies.

   The Layer 2 topology model applies the generic network and network
   topology models to Layer 2 network topologies, and augments the
   generic models with information specific to Layer 2 networks.  The
   relationship between the Layer 2 topology model and the generic
   network and network topology model is shown in the figure below:

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Internet-Draft     Layer-2 Network Topology Data Model      October 2018

                                 +---------------------+
                                 |    ietf-network     |
                                 +----------^----------+
                                            |
                                            |
                                 +---------------------+
                                 |ietf-network-topology|
                                 +----------^----------+
                                            |
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