QUIC for SATCOM
draft-kuhn-quic-4-sat-05
Internet Engineering Task Force N. Kuhn
Internet-Draft CNES
Intended status: Informational G. Fairhurst
Expires: November 30, 2020 University of Aberdeen
J. Border
Hughes Network Systems, LLC
E. Stephan
Orange
May 29, 2020
QUIC for SATCOM
draft-kuhn-quic-4-sat-05
Abstract
QUIC has been designed for use across Internet paths. Initial
designs of QUIC focused on common deployment scenarios for web
traffic. This document focuses on the performance when using a path
with a large Bandwidth-Delay Product (BDP).
A large BDP path can result from using a satellite communication
(SATCOM) system. The BDP is also high for paths where a satellite
network segment is combined with other network technologies
(Ethernet, cable modems, WiFi, cellular, radio links, etc), resulting
in more complex characteristics. These path characteristics have
implications on the efficiency of the network traffic and unless
considered in a design can impact the end-to-end quality of
experience by the transport service.
This memo identifies the characteristics of a SATCOM link that impact
the operation of the QUIC transport protocol. It proposes regression
tests to evaluate QUIC over SATCOM links. It discusses how to ensure
acceptable protocol performance.
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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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
Kuhn, et al. Expires November 30, 2020 [Page 1]
Internet-Draft QUIC 4 SAT May 2020
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 30, 2020.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Operating over a path with a large BDP . . . . . . . . . . . 3
3. TCP Split Solution . . . . . . . . . . . . . . . . . . . . . 5
4. Regression tests . . . . . . . . . . . . . . . . . . . . . . 6
4.1. Medium public satellite broadband access . . . . . . . . 6
4.2. Congested medium public satellite broadband access . . . 7
4.3. Variable medium public satellite broadband access . . . . 7
4.4. Loss-free large public satellite broadband access . . . . 8
4.5. Lossy large public satellite broadband access . . . . . . 9
5. Mechanisms that improve the performance of QUIC for SATCOM . 9
5.1. Getting up to speed . . . . . . . . . . . . . . . . . . . 9
5.2. Maximum window . . . . . . . . . . . . . . . . . . . . . 10
5.3. Reliability . . . . . . . . . . . . . . . . . . . . . . . 10
5.4. ACK ratio . . . . . . . . . . . . . . . . . . . . . . . . 10
6. Discussion . . . . . . . . . . . . . . . . . . . . . . . . . 11
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 12
8. Security Considerations . . . . . . . . . . . . . . . . . . . 12
9. Informative References . . . . . . . . . . . . . . . . . . . 12
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction
The end-to-end performance of an application using an Internet path
can be impacted by the Bandwidth-Delay Product (BDP) of the links and
network devices forming the path. For instance, the page load time
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