Observing the Evolution of QUIC Implementations

Piraux, Maxime; Coninck, Quentin De; Bonaventure, Olivier

doi:10.1145/3284850.3284852

Cited by 24 publications

(11 citation statements)

References 18 publications

(29 reference statements)

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“…For example, some implementers utilize it as part of their (unit) testing pipeline, validating protocol behaviour by observing events in the qlog output [6,48]. QUIC-Tracker and QUIC-Network-Simulator [67,73] are also considering using it to verify interoperability testing results. Another example is Facebook, which stores all qlog events in a relational database.…”

Section: Qlog and Qvis Usage In Practicementioning

confidence: 99%

“…Spread over 440 pages in ten documents [86], the protocols are challenging to understand and implement. In 2018, by working on our own implementations [28,57,67], it became evident that the QUIC community would need extensive tooling to help debug and validate their systems. These tools would ideally be re-usable across codebases, in turn requiring a common input data format.…”

mentioning

confidence: 99%

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Debugging QUIC and HTTP/3 with qlog and qvis

Marx

Piraux

Quax

et al. 2020

Proceedings of the Applied Networking Research Workshop

Self Cite

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The QUIC and HTTP/3 protocols are powerful but complex and difficult to debug and analyse. Our previous work proposed the qlog format for structured endpoint logging to aid in taming this complexity. This follow-up study evaluates the real-world implementations, uses and deployments of qlog and our associated qvis tooling in academia and industry. Our survey among 28 QUIC experts shows high community involvement, while Facebook confirms qlog can handle Internet scale. Lessons learned from researching 16 QUIC+HTTP/3 and five TCP+TLS+HTTP/2 implementations demonstrate that qlog and qvis are essential tools for performing root-cause analysis when debugging modern Web protocols. CCS CONCEPTS • Networks → Transport protocols; Protocol testing and verification; Network protocol design.

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Section: Qlog and Qvis Usage In Practicementioning

confidence: 99%

mentioning

confidence: 99%

Debugging QUIC and HTTP/3 with qlog and qvis

Marx

Piraux

Quax

et al. 2020

Proceedings of the Applied Networking Research Workshop

Self Cite

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“…Since the standardization of the QUIC protocol by the Internet Engineering Task Force (IETF), multiple QUIC implementations have been developed. To enhance the interoperability of QUIC implementations, some studies have proposed test cases, log formats and visual tools for debugging [25][26][27]. Several works have attempted to improve the performance of the QUIC protocol.…”

Section: Related Workmentioning

confidence: 99%

“…However, latency reduction in the QUIC protocol is limited because it also sets a small initial congestion window and employs slow start. Several studies have been conducted focusing on performance improvement, implementation validation and security [19][20][21][22][23][24][25][26][27][28]. Among these studies, some authors have proposed latency reduction schemes for QUIC.…”

Section: Introductionmentioning

confidence: 99%

Access Latency Reduction in the QUIC Protocol Based on Communication History

Jung¹,

2019

Electronics

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Internet traffic is experiencing rapid growth, with the majority of traffic generated from video steaming, web data services and Internet of Things. As these services include the transmission of small data, such as web pages, video chunks and sensing data, data latency affects the quality of experience rather than the throughput. Therefore, this study aims to decrease latency to improve the quality of the user experience. To this end, we measure the web service delay and throughput in mobile networks. The results indicate a low quality experience for mobile users, even though mobile networks support a large throughput. We therefore propose a light-weight latency reduction scheme for the Quick UDP Internet Connections (QUIC) protocol. The proposed scheme calculates the average congestion window, which is utilized as the initial congestion window when a new connection is established. The proposed scheme is evaluated through experiments on a testbed. The results show that our scheme reduces latency significantly. The results of this study can help improve user experiences of video streaming and web data services.

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“…Uncovering occurrences of non-conformities hence reveal areas of improvement for future standards. A recent example is QUIC, where effort is put into the avoidance of such misconceptions during standardization [46].…”

Section: Introductionmentioning

confidence: 99%

MUST, SHOULD, DON’T CARE: TCP Conformance in the Wild

Kosek

Blöcher

Rüth

et al. 2020

Passive and Active Measurement

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Standards govern the SHOULD and MUST requirements for protocol implementers for interoperability. In case of TCP that carries the bulk of the Internets' traffic, these requirements are defined in RFCs. While it is known that not all optional features are implemented and nonconformance exists, one would assume that TCP implementations at least conform to the minimum set of MUST requirements. In this paper, we use Internet-wide scans to show how Internet hosts and paths conform to these basic requirements. We uncover a non-negligible set of hosts and paths that do not adhere to even basic requirements. For example, we observe hosts that do not correctly handle checksums and cases of middlebox interference for TCP options. We identify hosts that drop packets when the urgent pointer is set or simply crash. Our publicly available results highlight that conformance to even fundamental protocol requirements should not be taken for granted but instead checked regularly.

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Observing the Evolution of QUIC Implementations

Cited by 24 publications

References 18 publications

Debugging QUIC and HTTP/3 with qlog and qvis

Debugging QUIC and HTTP/3 with qlog and qvis

Access Latency Reduction in the QUIC Protocol Based on Communication History

MUST, SHOULD, DON’T CARE: TCP Conformance in the Wild

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