Performance Measurement (PM) with Alternate Marking Method in Service Function Chaining (SFC) Domain
draft-mirsky-sfc-pmamm-12

Document Type Active Internet-Draft (sfc WG)
Authors Greg Mirsky  , Giuseppe Fioccola  , Tal Mizrahi 
Last updated 2021-01-10
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SFC  Working Group                                             G. Mirsky
Internet-Draft                                                 ZTE Corp.
Intended status: Experimental                                G. Fioccola
Expires: July 14, 2021                               Huawei Technologies
                                                              T. Mizrahi
                                        Huawei Network.IO Innovation Lab
                                                        January 10, 2021

 Performance Measurement (PM) with Alternate Marking Method in Service
                     Function Chaining (SFC) Domain
                       draft-mirsky-sfc-pmamm-12

Abstract

   This document describes how the alternate marking method can be used
   as the efficient performance measurement method taking advantage of
   the actual data flows in a Service Function Chaining (SFC) domain.

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   This Internet-Draft will expire on July 14, 2021.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
     2.1.  Acronyms  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   3.  Mark Field in NSH Base Header . . . . . . . . . . . . . . . .   3
   4.  Theory of Operation . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Single Mark Enabled Measurement . . . . . . . . . . . . .   4
     4.2.  Multiplexed Mark Enabled Measurement  . . . . . . . . . .   5
     4.3.  Residence Time Measurement with the Alternate Marking
           Method  . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     5.1.  Mark Field in NSH Base Header . . . . . . . . . . . . . .   6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   7.  Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .   7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   [RFC7665] introduced the architecture of a Service Function Chain
   (SFC) in the network and defined its components.  These include
   Classifier, Service Function Forwarder (SFF), Service Function (SF),
   and Service Function proxy.  [RFC8924] provides a reference framework
   for Operations, Administration and Maintenance (OAM) for SFC.
   [RFC8321] describes the hybrid performance measurement method, which
   can be used to measure packet loss, latency, and jitter on live
   traffic.  Because this method is based on marking consecutive batches
   of packets, the procedure is often referred to as Alternate Marking
   Method (AMM).

   This document defines how packet loss and delay metrics of a service
   flow over end-to-end (E2E) Service Function Path (SFP) or any SFP
   segment can be measured using AMM.  This document is aligned with the
   SFC OAM Performance Measurement requirements defined in [RFC8924].
   It states that any SFC-aware network device must have the ability to
   perform loss and delay measurements over the service function chain
   as a unit, i.e., E2E, or to a specific segment of service function
   through the SFC.  Besides, AMM can be used in combination with
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