Multiple Loss Ratio Search for Packet Throughput (MLRsearch)
draft-ietf-bmwg-mlrsearch-00
Benchmarking Working Group M. Konstantynowicz, Ed.
Internet-Draft V. Polak, Ed.
Intended status: Informational Cisco Systems
Expires: August 13, 2021 February 09, 2021
Multiple Loss Ratio Search for Packet Throughput (MLRsearch)
draft-ietf-bmwg-mlrsearch-00
Abstract
This document proposes changes to [RFC2544], specifically to packet
throughput search methodology, by defining a new search algorithm
referred to as Multiple Loss Ratio search (MLRsearch for short).
Instead of relying on binary search with pre-set starting offered
load, it proposes a novel approach discovering the starting point in
the initial phase, and then searching for packet throughput based on
defined packet loss ratio (PLR) input criteria and defined final
trial duration time. One of the key design principles behind
MLRsearch is minimizing the total test duration and searching for
multiple packet throughput rates (each with a corresponding PLR)
concurrently, instead of doing it sequentially.
The main motivation behind MLRsearch is the new set of challenges and
requirements posed by NFV (Network Function Virtualization),
specifically software based implementations of NFV data planes.
Using [RFC2544] in the experience of the authors yields often not
repetitive and not replicable end results due to a large number of
factors that are out of scope for this draft. MLRsearch aims to
address this challenge in a simple way of getting the same result
sooner, so more repetitions can be done to describe the
replicability.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
Konstantynowicz & Polak Expires August 13, 2021 [Page 1]
Internet-DraftMultiple Loss Ratio Search for Packet ThroughFebruary 2021
This Internet-Draft will expire on August 13, 2021.
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Table of Contents
1. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. MLRsearch Background . . . . . . . . . . . . . . . . . . . . 4
3. MLRsearch Overview . . . . . . . . . . . . . . . . . . . . . 5
4. Sample Implementation . . . . . . . . . . . . . . . . . . . . 8
4.1. Input Parameters . . . . . . . . . . . . . . . . . . . . 8
4.2. Initial Phase . . . . . . . . . . . . . . . . . . . . . . 9
4.3. Non-Initial Phases . . . . . . . . . . . . . . . . . . . 10
5. FD.io CSIT Implementation . . . . . . . . . . . . . . . . . . 12
5.1. Additional details . . . . . . . . . . . . . . . . . . . 12
5.1.1. FD.io CSIT Input Parameters . . . . . . . . . . . . . 14
5.2. Example MLRsearch Run . . . . . . . . . . . . . . . . . . 14
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
7. Security Considerations . . . . . . . . . . . . . . . . . . . 16
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 17
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.1. Normative References . . . . . . . . . . . . . . . . . . 17
9.2. Informative References . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 17
1. Terminology
o Frame size: size of an Ethernet Layer-2 frame on the wire,
including any VLAN tags (dot1q, dot1ad) and Ethernet FCS, but
excluding Ethernet preamble and inter-frame gap. Measured in
bytes.
o Packet size: same as frame size, both terms used interchangeably.
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