Performance Measurement (PM) with Alternate Marking Method in Service Function Chaining (SFC) Domain
draft-mirsky-sfc-pmamm-10

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Last updated 2020-06-29
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SFC  Working Group                                             G. Mirsky
Internet-Draft                                                 ZTE Corp.
Intended status: Experimental                                G. Fioccola
Expires: December 31, 2020                           Huawei Technologies
                                                              T. Mizrahi
                                        Huawei Network.IO Innovation Lab
                                                           June 29, 2020

 Performance Measurement (PM) with Alternate Marking Method in Service
                     Function Chaining (SFC) Domain
                       draft-mirsky-sfc-pmamm-10

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 December 31, 2020.

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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  . . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     5.1.  Mark Field in NSH Base Header . . . . . . . . . . . . . .   6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   7.  Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     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.  [I-D.ietf-sfc-oam-framework] 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 method 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 (Session-Reflector) or any segment of the SFC
   can be measured using AMM.  This document is aligned with the SFC OAM
   Performance Measurement requirements defined in
   [I-D.ietf-sfc-oam-framework].  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
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