draft-ietf-bmwg-dcbench-terminology-14.txt   draft-ietf-bmwg-dcbench-terminology-15.txt 
Internet Engineering Task Force L. Avramov Internet Engineering Task Force L. Avramov
INTERNET-DRAFT, Intended status: Informational Google INTERNET-DRAFT, Intended status: Informational Google
Expires: December 22,2017 J. Rapp Expires: December 22,2017 J. Rapp
June 20, 2017 VMware June 20, 2017 VMware
Data Center Benchmarking Terminology Data Center Benchmarking Terminology
draft-ietf-bmwg-dcbench-terminology-14 draft-ietf-bmwg-dcbench-terminology-15
Abstract Abstract
The purpose of this informational document is to establish definitions The purpose of this informational document is to establish definitions
and describe measurement techniques for data center benchmarking, as and describe measurement techniques for data center benchmarking, as
well as it is to introduce new terminologies applicable to data center well as it is to introduce new terminologies applicable to performance
performance evaluations. The purpose of this document is not to define evaluations of data center network equipment. This document establishes
the test methodology, but rather establish the important concepts for the important concepts for benchmarking network switches and routers in
benchmarking network switches and routers in the data center. Many of the data center and, is a pre-requisite to the test methodology
these terms and methods may be applicable beyond this publication's publication [1]. Many of these terms and methods may be applicable to
scope as the technologies originally applied in the data center are network equipment beyond this publication's scope as the technologies
deployed elsewhere. originally applied in the data center are deployed elsewhere.
Status of this Memo Status of this Memo
This Internet-Draft is submitted in full conformance with the provisions This Internet-Draft is submitted in full conformance with the provisions
of BCP 78 and BCP 79. of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Task Internet-Drafts are working documents of the Internet Engineering Task
Force (IETF). Note that other groups may also distribute working Force (IETF). Note that other groups may also distribute working
documents as Internet-Drafts. The list of current Internet-Drafts is at documents as Internet-Drafts. The list of current Internet-Drafts is at
http://datatracker.ietf.org/drafts/current. http://datatracker.ietf.org/drafts/current.
skipping to change at page 3, line 27 skipping to change at page 3, line 27
a single network device simultaneously. Benchmarking of network a single network device simultaneously. Benchmarking of network
devices have long used [RFC1242], [RFC2432], [RFC2544], [RFC2889] and devices have long used [RFC1242], [RFC2432], [RFC2544], [RFC2889] and
[RFC3918]. These benchmarks have largely been focused around various [RFC3918]. These benchmarks have largely been focused around various
latency attributes and max throughput of the Device Under Test being latency attributes and max throughput of the Device Under Test being
benchmarked. These standards are good at measuring theoretical max benchmarked. These standards are good at measuring theoretical max
throughput, forwarding rates and latency under testing conditions, throughput, forwarding rates and latency under testing conditions,
but they do not represent real traffic patterns that may affect these but they do not represent real traffic patterns that may affect these
networking devices. The data center networking devices covered are networking devices. The data center networking devices covered are
switches and routers. switches and routers.
Currently, typical data Center networking devices are characterized
by:
-High port density (48 ports of more)
-High speed (up to 100 Gb/s currently per port)
-High throughput (line rate on all ports for Layer 2 and/or Layer 3)
-Low latency (in the microsecond or nanosecond range)
-Low amount of buffer (in the Mb range)
-Layer 2 and Layer 3 forwarding capability (Layer 3 not mandatory)
The following document defines a set of definitions, metrics and The following document defines a set of definitions, metrics and
terminologies including congestion scenarios, switch buffer analysis terminologies including congestion scenarios, switch buffer analysis
and redefines basic definitions in order to represent a wide mix of and redefines basic definitions in order to represent a wide mix of
traffic conditions. The test methodologies are defined in [1]. traffic conditions. The test methodologies are defined in [1].
1.1. Requirements Language 1.1. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119]. document are to be interpreted as described in RFC 2119 [RFC2119].
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