Network Telemetry Framework
draft-ietf-opsawg-ntf-03

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Last updated 2020-04-13
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OPSAWG                                                           H. Song
Internet-Draft                                                 Futurewei
Intended status: Informational                                    F. Qin
Expires: October 15, 2020                                   China Mobile
                                                       P. Martinez-Julia
                                                                    NICT
                                                            L. Ciavaglia
                                                                   Nokia
                                                                 A. Wang
                                                           China Telecom
                                                          April 13, 2020

                      Network Telemetry Framework
                        draft-ietf-opsawg-ntf-03

Abstract

   Network telemetry is the technology for gaining network insight and
   facilitating efficient and automated network management.  It engages
   various techniques for remote data collection, correlation, and
   consumption.  This document provides an architectural framework for
   network telemetry, motivated by the network operation challenges and
   requirements.  As evidenced by some key characteristics and industry
   practices, network telemetry covers technologies and protocols beyond
   the conventional network Operations, Administration, and Management
   (OAM).  It promises better flexibility, scalability, accuracy,
   coverage, and performance and allows automated control loops to suit
   both today's and tomorrow's network operation.  This document
   clarifies the terminologies and classifies the modules and components
   of a network telemetry system from several different perspectives.
   The framework and taxonomy help to set a common ground for the
   collection of related work and provide guidance for related technique
   and standard developments.

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
   Task Force (IETF).  Note that other groups may also distribute
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   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any

Song, et al.            Expires October 15, 2020                [Page 1]
Internet-Draft         Network Telemetry Framework            April 2020

   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on October 15, 2020.

Copyright Notice

   Copyright (c) 2020 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
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Motivation  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  Challenges  . . . . . . . . . . . . . . . . . . . . . . .   6
     2.3.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . .   7
     2.4.  Network Telemetry . . . . . . . . . . . . . . . . . . . .   8
   3.  The Necessity of a Network Telemetry Framework  . . . . . . .  10
   4.  Network Telemetry Framework . . . . . . . . . . . . . . . . .  11
     4.1.  Data Acquiring Mechanisms and Data Types  . . . . . . . .  12
     4.2.  Data Object Modules . . . . . . . . . . . . . . . . . . .  13
       4.2.1.  Requirements and Challenges for each Module . . . . .  16
     4.3.  Function Components . . . . . . . . . . . . . . . . . . .  19
     4.4.  Existing Works Mapped in the Framework  . . . . . . . . .  21
   5.  Evolution of Network Telemetry  . . . . . . . . . . . . . . .  22
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  23
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  24
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  24
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  24
   10. Informative References  . . . . . . . . . . . . . . . . . . .  25
   Appendix A.  A Survey on Existing Network Telemetry Techniques  .  28
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