UDP based Publication Channel for Streaming Telemetry
draft-ietf-netconf-udp-pub-channel-02
NETCONF G. Zheng
Internet-Draft T. Zhou
Intended status: Standards Track A. Clemm
Expires: September 19, 2018 Huawei
March 18, 2018
UDP based Publication Channel for Streaming Telemetry
draft-ietf-netconf-udp-pub-channel-02
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
Task Force (IETF). Note that other groups may also distribute
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This Internet-Draft will expire on September 19, 2018.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
Zheng, et al. Expires September 19, 2018 [Page 1]
Internet-Draft udp-pub-channel March 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Solution Overview . . . . . . . . . . . . . . . . . . . . . . 4
4. Transport Mechanisms . . . . . . . . . . . . . . . . . . . . 5
4.1. Dynamic Subscription . . . . . . . . . . . . . . . . . . 5
4.2. Configured Subscription . . . . . . . . . . . . . . . . . 6
5. UDP Transport for Publication Channel . . . . . . . . . . . . 7
5.1. Design Overview . . . . . . . . . . . . . . . . . . . . . 7
5.2. Data Format of the Message Header . . . . . . . . . . . . 8
5.3. Options . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3.1. Reliability Option . . . . . . . . . . . . . . . . . 10
5.3.2. Fragmentation Option . . . . . . . . . . . . . . . . 11
5.4. Data Encoding . . . . . . . . . . . . . . . . . . . . . . 11
6. Congestion Control . . . . . . . . . . . . . . . . . . . . . 12
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
8. Security Considerations . . . . . . . . . . . . . . . . . . . 12
9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 13
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
10.1. Normative References . . . . . . . . . . . . . . . . . . 13
10.2. Informative References . . . . . . . . . . . . . . . . . 13
10.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15
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
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