Performance Measurement for Geneve
draft-xiao-nvo3-pm-geneve-01

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NVO3 Working Group                                                X. Min
Internet-Draft                                                 G. Mirsky
Intended status: Standards Track                               ZTE Corp.
Expires: November 22, 2020                                 S. Pallagatti
                                                                  VMware
                                                            May 21, 2020

                   Performance Measurement for Geneve
                      draft-xiao-nvo3-pm-geneve-01

Abstract

   This document describes the method to achieve Performance Measurement
   (PM) in point-to-point Generic Network Virtualization Encapsulation
   (Geneve) tunnels used to make up an overlay network.

Status of This Memo

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   This Internet-Draft will expire on November 22, 2020.

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   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   2
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   2
     2.2.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   3.  PM Packet Transmission over Geneve Tunnel . . . . . . . . . .   3
     3.1.  PM Encapsulation With Inner Ethernet/IP/UDP Header  . . .   3
     3.2.  PM Encapsulation With Inner IP/UDP Headers  . . . . . . .   5
   4.  Reception of PM packet from Geneve Tunnel . . . . . . . . . .   7
     4.1.  Demultiplexing of the PM packet . . . . . . . . . . . . .   7
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   "Generic Network Virtualization Encapsulation" (Geneve)
   [I-D.ietf-nvo3-geneve] provides an encapsulation scheme that allows
   building an overlay network by decoupling the address space of the
   attached virtual hosts from that of the network.

   This document describes the use of Simple Two-way Active Measurement
   Protocol [RFC8762] to enable measuring the performance of the path
   between two Geneve tunnel endpoints.

   Analogous to [I-D.xiao-nvo3-bfd-geneve], in this document, NVE
   (Network Virtualization Edge) represents the Geneve tunnel endpoint,
   TS (Tenant System) represents the physical or virtual device attached
   to a Geneve tunnel endpoint from the outside, and VAP (Virtual Access
   Point) represents the NVE side of the interface between the NVE and
   the TS.

2.  Conventions Used in This Document

2.1.  Terminology

   Geneve: Generic Network Virtualization Encapsulation

   NVE: Network Virtualization Edge

   PM: Performance Measurement

   STAMP: Simple Two-way Active Measurement Protocol

   TS: Tenant System

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   VAP: Virtual Access Point

   VNI: Virtual Network Identifier

2.2.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.
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