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