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Yuan, Gina; Zhang, David K.; Sotoudeh, Matthew; Welzl, Michael; Winstein, Keith

doi:10.1145/3563766.3564113

Proceedings of the 21st ACM Workshop on Hot Topics in Networks 2022

DOI: 10.1145/3563766.3564113

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Sidecar

Gina Yuan

David K. Zhang

Matthew Sotoudeh

et al.

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Cited by 3 publications

References 22 publications

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A Stability-First Approach to Running TCP Over Starlink

Stock,

Fraire,

Henn

et al. 2024

2024 IEEE International Conference on Communications Workshops (ICC Workshops)

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The end-to-end connectivity patterns between two points on Earth are highly volatile if mediated via a Low-Earth orbit (LEO) satellite constellation. This is rooted in the enormous speeds at which satellites in LEO must travel relative to the Earth's surface. While changes in end-to-end routes are rare events in stationary and terrestrial applications, they are a dominating factor for connection-oriented services running over LEO constellations and mega-constellations. This paper discusses how TCP-over-constellations is affected by the need for rerouting and how orbital route selection algorithms impact the end-to-end performance of communication. In contrast to the state of the art that primarily optimizes for instantaneous shortest routes (i.e. lowest delay), we propose several algorithms that have route stability and longevity in their focus. We show that this shift in focus comes with vastly improved end-to-end communication performance, and we discuss peculiar effects of the typical TCP-like implementations, taking inspiration from the Starlink constellation in our empirical investigations. The spectrum of algorithms proposed provides a basis for co-designing suitable orbital route selection algorithms and tailored transport control algorithms.

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A Stability-First Approach to Running TCP Over Starlink

Stock,

Fraire,

Henn

et al. 2024

2024 IEEE International Conference on Communications Workshops (ICC Workshops)

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CUBIC Local Loss Recovery vs. BBR on (Satellite) Internet Paths

Deutschmann¹,

Hielscher²,

German³

2023

2023 IEEE 29th International Symposium on Local and Metropolitan Area Networks (LANMAN)

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Secure Middlebox-Assisted QUIC

Kosek

Spies

Ott

2023

2023 IFIP Networking Conference (IFIP Networking)

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While the evolution of the Internet was driven by the end-to-end model, it has been challenged by many flavors of middleboxes over the decades. Yet, the basic idea is still fundamental: reliability and security are usually realized end-toend, where the strong trend towards ubiquitous traffic protection supports this notion. However, reasons to break up, or redefine the ends of, end-to-end connections have always been put forward in order to improve transport layer performance. Yet, the consolidation of the transport layer with the end-to-end security model as introduced by QUIC protects most protocol information from the network, thereby eliminating the ability to modify protocol exchanges. In this paper, we enhance QUIC to selectively expose information to intermediaries, thereby enabling endpoints to consciously insert middleboxes into an end-to-end encrypted QUIC connection while preserving its privacy, integrity, and authenticity. We evaluate our design in a distributed Performance Enhancing Proxy environment over satellite networks, finding that the performance improvements are dependent on the path and application layer properties: the higher the round-trip time and loss, and the more data is transferred over a connection, the higher the benefits of Secure Middlebox-Assisted QUIC.

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Sidecar

Cited by 3 publications

References 22 publications

A Stability-First Approach to Running TCP Over Starlink

A Stability-First Approach to Running TCP Over Starlink

CUBIC Local Loss Recovery vs. BBR on (Satellite) Internet Paths

Secure Middlebox-Assisted QUIC

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