Network Telemetry Framework
draft-song-opsawg-ntf-02

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OPSAWG                                                      H. Song, Ed.
Internet-Draft                                                   T. Zhou
Intended status: Informational                                    ZB. Li
Expires: June 17, 2019                                            Huawei
                                                                  ZQ. Li
                                                            China Mobile
                                                       P. Martinez-Julia
                                                                    NICT
                                                            L. Ciavaglia
                                                                   Nokia
                                                                 A. Wang
                                                           China Telecom
                                                       December 14, 2018

                      Network Telemetry Framework
                        draft-song-opsawg-ntf-02

Abstract

   This document provides an architectural framework for network
   telemetry to address the current and future network operation
   challenges and requirements.  The defining characteristics of network
   telemetry show a clear distinction from the conventional network
   Operations, Administration, and Management (OAM).  Network telemetry
   promises better scalability, accuracy, coverage, and performance and
   allows automated control loops to suit both today's and tomorrow's
   network operation requirements.  This document clarifies the
   terminologies and classifies the modules and components of a network
   telemetry system.  The framework and taxonomy help to set a common
   ground for the collection of related work and provide guidance for
   future technique and standard developments.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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Song, et al.              Expires June 17, 2019                 [Page 1]
Internet-Draft         Network Telemetry Framework         December 2018

   This Internet-Draft will expire on June 17, 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Motivation  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Challenges  . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.4.  Network Telemetry . . . . . . . . . . . . . . . . . . . .   8
   3.  The Necessity of a Network Telemetry Framework  . . . . . . .   9
   4.  Network Telemetry Framework . . . . . . . . . . . . . . . . .  10
     4.1.  Existing Works Mapped in the Framework  . . . . . . . . .  14
   5.  Evolution of Network Telemetry  . . . . . . . . . . . . . . .  15
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  16
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  16
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  16
   Appendix A.  A Survey on Existing Network Telemetry Techniques  .  19
     A.1.  Management Plane Telemetry  . . . . . . . . . . . . . . .  19
       A.1.1.  Requirements and Challenges . . . . . . . . . . . . .  19
       A.1.2.  Push Extensions for NETCONF . . . . . . . . . . . . .  20
       A.1.3.  gRPC Network Management Interface . . . . . . . . . .  20