A YANG Data Model for Fabric Topology in Data Center Network
draft-zhuang-i2rs-yang-dc-fabric-network-topology-02

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I2RS Working Group                                             Y. Zhuang
Internet-Draft                                                    D. Shi
Intended status: Standards Track                                  Huawei
Expires: May 1, 2017                                               R. Gu
                                                            China Mobile
                                                      H. Ananthakrishnan
                                                           Packet Design
                                                        October 28, 2016

      A YANG Data Model for Fabric Topology in Data Center Network
          draft-zhuang-i2rs-yang-dc-fabric-network-topology-02

Abstract

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

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   This Internet-Draft will expire on May 1, 2017.

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   Copyright (c) 2016 IETF Trust and the persons identified as the
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions an Acronyms . . . . . . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Tree diagram  . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Model Overview  . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Topology Model structure  . . . . . . . . . . . . . . . .   4
     3.2.  Fabric Topology Model . . . . . . . . . . . . . . . . . .   5
       3.2.1.  Fabric Topology . . . . . . . . . . . . . . . . . . .   5
       3.2.2.  Fabric Capable Device . . . . . . . . . . . . . . . .  10
   4.  Fabric YANG Modules . . . . . . . . . . . . . . . . . . . . .  12
   5.  Security Consideration  . . . . . . . . . . . . . . . . . . .  29
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  30
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  30
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  30
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  30
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  31

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, Fabric A may use VXLAN while Fabric B may
   use VLAN within a DC network.  Likewise, a legacy Fabric may use
   VXLAN while a new Fabric B implemented technique discussed in NVO3 WG
   such as GPE[I-D. draft-ietf-nvo3-vxlan-gpe] may be built due to DC
   expansion and upgrading.  The configuration and management of such DC
   networks with heterogeneous fabrics will be sophisticated and
   complex.

   Luckily, for a DC network, a fabric can be considered as an atomic
   structure to provide network services and 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

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