A YANG Data Model for Layer-2 Network Topologies
draft-ietf-i2rs-yang-l2-network-topology-01

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Last updated 2015-07-06
Replaces draft-dong-i2rs-l2-network-topology
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Network Working Group                                            J. Dong
Internet-Draft                                                    X. Wei
Intended status: Standards Track                     Huawei Technologies
Expires: January 7, 2016                                    July 6, 2015

            A YANG Data Model for Layer-2 Network Topologies
              draft-ietf-i2rs-yang-l2-network-topology-01

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
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   This Internet-Draft will expire on January 7, 2016.

Copyright Notice

   Copyright (c) 2015 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
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   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  . . . . . . . . . . . . . . . .   6
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  18
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  18
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  18
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

   [I-D.ietf-i2rs-yang-network-topo] defines the Yang [RFC6020]
   [RFC6021] 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.

   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 in 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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                           +---------------------+
                           |    ietf-network     |
                           +----------^----------+
                                      |
                                      |
                           +---------------------+
                           |ietf-network-topology|
                           +----------^----------+
                                      |
                                      |
                           +----------^----------+
                           |   ietf-l2-topology  |
                           +---------------------+
                   Figure 1. L2-topology model structure

   In order to represent a Layer 2 network topology, the generic network
   and topology models are augmented with Layer-2 specific information,
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