A YANG Data Model for Fabric Topology in Data Center Network
draft-zhuang-i2rs-yang-dc-fabric-network-topology-01

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I2RS Working Group                                             Y. Zhuang
Internet-Draft                                                    D. Shi
Intended status: Standards Track                                  Huawei
Expires: April 2, 2017                                             R. Gu
                                                            China Mobile
                                                      September 29, 2016

      A YANG Data Model for Fabric Topology in Data Center Network
          draft-zhuang-i2rs-yang-dc-fabric-network-topology-01

Abstract

   This document defines a YANG data model for fabric topology in Data
   Center Network.

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Zhuang, et al.            Expires April 2, 2017                 [Page 1]
Internet-Draft      Data model for DC fabric topology     September 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions an Acronyms . . . . . . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Tree diagram  . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Model Overview  . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Topology Model structure  . . . . . . . . . . . . . . . .   4
     3.2.  Fabric Topology Model . . . . . . . . . . . . . . . . . .   5
       3.2.1.  Fabric Toplogy  . . . . . . . . . . . . . . . . . . .   5
       3.2.2.  Fabric Device Module  . . . . . . . . . . . . . . . .  10
   4.  Fabric YANG Modules . . . . . . . . . . . . . . . . . . . . .  12
   5.  Security Consideration  . . . . . . . . . . . . . . . . . . .  29
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  30
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  30
     7.1.  Informative References  . . . . . . . . . . . . . . . . .  30
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  30
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  30

1.  Introduction

   Normally, a data center network is composed of single or multiple
   fabrics which are also known as PODs (a Point Of Delivery).  These
   fabrics may be heterogeneous due to implementation of different
   technologies while DC network upgrading or enrolling new techniques
   and features.  For example, for a DC network, Fabric A may use VXLAN
   while Fabric B may use VLAN.  Likewise, a legacy Fabric may use VXLAN
   while a new Fabric B implemented technique such as GPE[] may be built
   due to DC expansion.  The configuration and management of such DC
   networks with heterogeneous fabrics will be sophisticated and complex
   especially.

   Luckily, for a DC network, fabric can be considered as an atomic
   structure to provide network services and deploy network management,
   as well as expand network capacity.  From this point of view, the
   miscellaneous DC network management can be decomposed to task of
   managing each fabric respectively along with their connections, which
   can make the entire management much concentrated and flexible, also
   easy to expand.

   With this purpose, this document defines a YANG data model for the
   Fabric-based Data center topology by using YANG [6020][7950].  To do
   so, it augments the generic network and network topology data models
   defined in [I-D.ietf-i2rs-yang-network-topo] with information
   specific to Data Center application.

   This model defines the generic configuration and operational state
   for a fabric-based network topology, which can be extended by vendors
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