UDP based Publication Channel for Streaming Telemetry
draft-ietf-netconf-udp-pub-channel-00
NETCONF G. Zheng
Internet-Draft T. Zhou
Intended status: Standards Track A. Clemm
Expires: March 27, 2018 Huawei
September 23, 2017
UDP based Publication Channel for Streaming Telemetry
draft-ietf-netconf-udp-pub-channel-00
Abstract
This document describes a UDP-based publication channel for streaming
telemetry use to collect data from devices. A new shim header is
proposed to facilitate the distributed data collection mechanism
which directly pushes data from line cards to the collector. Because
of the lightweight UDP encapsulation, higher frequency and better
transit performance can be achieved.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
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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This Internet-Draft will expire on March 27, 2018.
Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved.
Zheng, et al. Expires March 27, 2018 [Page 1]
Internet-Draft udp-pub-channel September 2017
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Solution Overview . . . . . . . . . . . . . . . . . . . . . . 4
4. UDP Transport for Publication Channel . . . . . . . . . . . . 6
4.1. Data Format . . . . . . . . . . . . . . . . . . . . . . . 6
4.2. Options . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2.1. Reliability Option . . . . . . . . . . . . . . . . . 8
4.2.2. Authentication Option . . . . . . . . . . . . . . . . 9
4.3. Data Encoding . . . . . . . . . . . . . . . . . . . . . . 10
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
6. Operational Considerations . . . . . . . . . . . . . . . . . 10
7. Security Considerations . . . . . . . . . . . . . . . . . . . 10
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 10
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
9.1. Normative References . . . . . . . . . . . . . . . . . . 10
9.2. Informative References . . . . . . . . . . . . . . . . . 11
9.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 12
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 12
1. Introduction
Streaming telemetry refers to sending a continuous stream of
operational data from a device to a remote receiver. This provides
an ability to monitor a network from remote and to provide network
analytics. Devices generate telemetry data and push that data to a
collector for further analysis. By streaming the data, much better
performance, finer-grained sampling, monitoring accuracy, and
bandwidth utilization can be achieved than with polling-based
alternatives.
Sub-Notif [I-D.ietf-netconf-subscribed-notifications] and YANG-Push
[I-D.ietf-netconf-yang-push] defines a mechanism that allows a
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