A YANG Model for Network and VPN Service Performance Monitoring
draft-www-bess-yang-vpn-service-pm-02

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BESS Working Group                                               M. Wang
Internet-Draft                                                     Q. Wu
Intended status: Standards Track                                 R. Even
Expires: September 9, 2019                                        Huawei
                                                                  B. Wen
                                                                 Comcast
                                                                  C. Liu
                                                            China Unicom
                                                           March 8, 2019

    A YANG Model for Network and VPN Service Performance Monitoring
                 draft-www-bess-yang-vpn-service-pm-02

Abstract

   The data model defined in [RFC8345] introduces vertical layering
   relationships between networks that can be augmented to cover
   network/service topologies.  This document defines a YANG model for
   Network and VPN Service Performance Monitoring that can be used to
   monitor and manage network performance on the topology at different
   layer or the overlay topology between VPN sites.  This model is an
   augmentation to the network topology YANG data model defined in
   [RFC8345].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on September 9, 2019.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Wang, et al.            Expires September 9, 2019               [Page 1]
Internet-Draft       Network and VPN Service PM YANG          March 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
     2.1.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Network and VPN service assurance model . . . . . . . . . . .   3
   4.  Layering relationship between underlay topology and overlay
       topology  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   5.  Model Usage Guideline . . . . . . . . . . . . . . . . . . . .   5
     5.1.  Performance Monitoring Data Source  . . . . . . . . . . .   5
     5.2.  Retrieval via I2RS Pub/Sub [RFC7923]  . . . . . . . . . .   5
     5.3.  On demand Retrieval via RPC model . . . . . . . . . . . .   6
   6.  Design of the Data Model  . . . . . . . . . . . . . . . . . .   6
     6.1.  Network Level . . . . . . . . . . . . . . . . . . . . . .   6
     6.2.  Node Level  . . . . . . . . . . . . . . . . . . . . . . .   6
     6.3.  Link and Termination Point Level  . . . . . . . . . . . .   7
   7.  Example of I2RS Pub/Sub Retrieval [RFC7923] . . . . . . . . .   9
   8.  Example of RPC model based Retrieval  . . . . . . . . . . . .  11
   9.  Network and VPN Service Assurance YANG Module . . . . . . . .  11
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  20
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
   12. Normative References  . . . . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

1.  Introduction

   [RFC8345] defines an abstract YANG data model for network/service
   topologies and inventories.  Service topology in [RFC8345] includes
   the a virtual topology for a service layer above the L1, L2, and L3
   layers.  This virtual topology has the generic topology elements of
   node, link, and terminating point.  One typical example of a service
   topology is described in figure 3 of [RFC8345], two VPN service
   topologies instantiated over a common L3 topology.  Each VPN service
   topology is mapped onto a subset of nodes from the common L3
   topology.
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