Network Telemetry Framework
draft-ietf-opsawg-ntf-02
OPSAWG H. Song, Ed.
Internet-Draft Futurewei
Intended status: Informational F. Qin
Expires: April 10, 2020 China Mobile
P. Martinez-Julia
NICT
L. Ciavaglia
Nokia
A. Wang
China Telecom
October 8, 2019
Network Telemetry Framework
draft-ietf-opsawg-ntf-02
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.
To the best of our knowledge, this document is the first such effort
for network telemetry in industry standards organizations. 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
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
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Internet-Draft Network Telemetry Framework October 2019
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This Internet-Draft will expire on April 10, 2020.
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Copyright (c) 2019 IETF Trust and the persons identified as the
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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 . . . . . 15
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
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