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