UDP based Publication Channel for Streaming Telemetry
draft-zheng-netconf-udp-pub-channel-00

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NETCONF                                                         G. Zheng
Internet-Draft                                                   T. Zhou
Intended status: Standards Track                                A. Clemm
Expires: January 3, 2018                                          Huawei
                                                            July 2, 2017

         UDP based Publication Channel for Streaming Telemetry
                 draft-zheng-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 January 3, 2018.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Zheng, et al.            Expires January 3, 2018                [Page 1]
Internet-Draft               udp-pub-channel                   July 2017

   This document is subject to BCP 78 and the IETF Trust's Legal
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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
       4.2.3.  Encryption Option . . . . . . . . . . . . . . . . . .   9
     4.3.  Data encoding . . . . . . . . . . . . . . . . . . . . . .   9
   5.  YANG Data Model for Subscription Management . . . . . . . . .   9
   6.  Retransmission Request  . . . . . . . . . . . . . . . . . . .  10
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     10.2.  Informative References . . . . . . . . . . . . . . . . .  11
   Appendix A.  An Appendix  . . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

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
   collector to subscribe to updates of YANG-defined data that is
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