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
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
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
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
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
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
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
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
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