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The October 2023 Issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2024-02-20 Steve Uhlig
This October 2023 issue contains three editorial notes. The observing reader of CCR will have noticed that there is no July 2023 issue. There are three main factors at play here. Given the timing of our SIGCOMM conferences, summer is a low period for submissions to CCR. Then, as CCR is selective and its scope limited to timely works relevant to our community, few technical papers make it above our
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On Integrating eBPF into Pluginized Protocols ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2024-02-20 Quentin De Coninck, Louis Navarre, Nicolas Rybowski
eBPF is a popular technology originating from the Linux kernel that enables safely running user-provided programs in a kernel-context. This technology opened the door for efficient programming in the operating system, especially in its network stack. However, its applicability is not limited to the Linux kernel. Various efforts leveraged the eBPF Instruction Set Architecture (ISA) as the basis of other
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The I/O Driven Server: From SmartNICs to Data Movement Controllers ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2024-02-20 Justine Sherry
Many researchers are turning to SmartNIC offloads to improve the performance of high-performance networked systems. In this editorial, I discuss why SmartNICs are an especially powerful form factor for improving I/O intensive applications, and how their position in the dataplane enables them to take on central role in managing I/O. Rather than focusing on the benefits of individual offloads, this paper
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Can We Save the Public Internet? ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2024-02-20 Marjory Blumenthal, Ramesh Govindan, Ethan Katz-Bassett, Arvind Krishnamurthy, James McCauley, Nick Merrill, Tejas Narechania, Aurojit Panda, Scott Shenker
The goal of this short document is to explain why recent developments in the Internet's infrastructure are problematic. As context, we note that the Internet was originally designed to provide a simple universal service - global end-to-end packet delivery - on which a wide variety of end-user applications could be built. The early Internet supported this packet-delivery service via an interconnected
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The April 2023 Issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-07-19 Steve Uhlig
This April 2023 issue contains one technical paper and four editorial notes.
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Vulnerability Disclosure Considered Stressful ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-07-19 Giovane C. M. Moura, John Heidemann
Vulnerability disclosure is a widely recognized practice in the software industry, but there is a lack of literature detailing the firsthand experiences of researchers who have gone through the process. This work aims to bridge that gap by sharing our personal experience of accidentally discovering a DNS vulnerability and navigating the vulnerability disclosure process for the first time. We document
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Measuring Broadband America: A Retrospective on Origins, Achievements, and Challenges ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-07-19 Eric W. Burger, Padma Krishnaswamy, Henning Schulzrinne
The "Measuring Broadband America" program, run by the United States Federal Communications Commission (FCC), continually measures and releases data on the performance of consumer broadband access networks in the US. This paper presents a retrospective on the program, from its beginnings in 2010 to the present. It also reviews the underlying measurement approaches, philosophies, distinguishing features
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Recent Trends on Privacy-Preserving Technologies under Standardization at the IETF ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-07-19 Pratyush Dikshit, Jayasree Sengupta, Vaibhav Bajpai
End-users are concerned about protecting the privacy of their sensitive personal data that are generated while working on information systems. This extends to both the data they actively provide including personal identification in exchange for products and services as well as its related metadata such as unnecessary access to their location. This is when certain privacy-preserving technologies come
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Report of 2021 DINRG Workshop on Centralization in the Internet ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-07-19 Christian Huitema, Geoff Huston, Dirk Kutscher, Lixia Zhang
The Internet Research Task Force (IRTF) Research Group on Decentralizing the Internet (DINRG) hosted a workshop on Centralization in the Internet on June 3, 2021. The workshop focused on painting a broad-brush landscape of the Internet centralization problem space: its starting point, its driving force, together with an articulation on what can and should be done.
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A Retrospective on Campus Network Traffic Monitoring ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-07-19 Martin Arlitt, Mehdi Karamollahi, Carey Williamson
On April 1, 2023 we stopped monitoring the traffic on our campus Internet link, nearly 20 years to the day since we first started doing so. During these two decades, we faced a vast array of issues that affected the collection, storage, analysis and backup of our monitoring data. In this paper we share some of our experiences, so that future networking researchers have an opportunity to learn from
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Fast In-kernel Traffic Sketching in eBPF ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-04-20 Sebastiano Miano, Xiaoqi Chen, Ran Ben Basat, Gianni Antichi
The extended Berkeley Packet Filter (eBPF) is an infrastructure that allows to dynamically load and run micro-programs directly in the Linux kernel without recompiling it. In this work, we study how to develop high-performance network measurements in eBPF. We take sketches as case-study, given their ability to support a wide-range of tasks while providing low-memory footprint and accuracy guarantees
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Comparing User Space and In-Kernel Packet Processing for Edge Data Centers ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-04-20 Federico Parola, Roberto Procopio, Roberto Querio, Fulvio Risso
Telecommunication operators are massively moving their network functions in small data centers at the edge of the network, which are becoming increasingly common. However, the high performance provided by commonly used technologies for data plane processing such as DPDK, based on kernel-bypass primitives, comes at the cost of rigid resource partitioning. This is unsuitable for edge data centers, in
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P4RROT: Generating P4 Code for the Application Layer ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-04-20 Csaba Györgyi, Sándor Laki, Stefan Schmid
Throughput and latency critical applications could often benefit of performing computations close to the client. To enable this, distributed computing paradigms such as edge computing have recently emerged. However, with the advent of programmable data planes, computations cannot only be performed by servers but they can be offloaded to network switches. Languages like P4 enable to flexibly reprogram
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The Slow Path Needs an Accelerator Too! ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-04-20 Annus Zulfiqar, Ben Pfaff, William Tu, Gianni Antichi, Muhammad Shahbaz
Packet-processing data planes have been continuously enhanced in performance over the last few years to the point that, nowadays, they are increasingly implemented in hardware (i.e., in SmartNICs and programmable switches). However, little attention is given to the slow path residing between the data plane and the control plane, as it is not typically considered performance-critical. In this paper
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Who Squats IPv4 Addresses? ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2023-04-20 Loqman Salamatian, Todd Arnold, Ítalo Cunha, Jiangchen Zhu, Yunfan Zhang, Ethan Katz-Bassett, Matt Calder
To mitigate IPv4 exhaustion, IPv6 provides expanded address space, and NAT allows a single public IPv4 address to suffice for many devices assigned private IPv4 address space. Even though NAT has greatly extended the shelf-life of IPv4, some networks need more private IPv4 space than what is officially allocated by IANA due to their size and/or network management practices. Some of these networks resort
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The October 2022 Issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-12-19 Steve Uhlig
Before we present the content of this issue, we want to make an announcement. We are delighted to introduce a new journal titled "Proceedings of the ACM on Networking" (PACMNET). PACMNET is among the last journals joining the recently launched Proceedings of the ACM (PACM) series. The goal of the PACM series is to showcase the highest quality research conducted in diverse areas of computer science
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LGC-ShQ: Datacenter Congestion Control with Queueless Load-Based ECN Marking: ACM SIGCOMM Computer Communication Review: Vol 52, No 4 ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-12-19 Kristjon Ciko, Peyman Teymoori, Michael Welzl
We present LGC-ShQ, a new ECN-based congestion control mechanism for datacenters. LGC-ShQ relies on ECN feedback from a Shadow Queue, and it uses ECN not only to decrease the rate, but it also increases the rate in relation to this signal. Real-life tests in a Linux testbed show that LGC-ShQ keeps the real queue at low levels while achieving good link utilization and fairness.
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Topology and Geometry of the Third-Party Domains Ecosystem: Measurement and Applications: ACM SIGCOMM Computer Communication Review: Vol 52, No 4 ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-12-19 Costas Iordanou, Fragkiskos Papadopoulos
Over the years, web content has evolved from simple text and static images hosted on a single server to a complex, interactive and multimedia-rich content hosted on different servers. As a result, a modern website during its loading time fetches content not only from its owner's domain but also from a range of third-party domains providing additional functionalities and services. Here, we infer the
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Rethinking SIGCOMM's Conferences: Making Form Follow Function: ACM SIGCOMM Computer Communication Review: Vol 52, No 4 ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-12-19 Scott Shenker
In this short essay, I ask whether our current practice of highly selective conferences is helping us achieve SIGCOMM's research goals.1 This requires first articulating what those goals are, and then evaluating our practices in relation to those goals. To no one's surprise, this essay contends that there is a significant mismatch between what I believe SIGCOMM's goals should be and what our current
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The July 2022 issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-09-06 Steve Uhlig
This July 2022 issue contains one technical paper and two editorial notes.
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The packet number space debate in multipath QUIC ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-09-06 Quentin De Coninck
With a standardization process that attracted much interest, QUIC can been seen as the next general-purpose transport protocol. Still, it does not provide true multipath support yet, missing some use cases that Multipath TCP addresses. To fill that gap, the IETF recently adopted a Multipath proposal merging several proposed designs. While it focuses on its core components, there still remains one major
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The multiple roles that IPv6 addresses can play in today's internet ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-09-06 Maxime Piraux, Tom Barbette, Nicolas Rybowski, Louis Navarre, Thomas Alfroy, Cristel Pelsser, François Michel, Olivier Bonaventure
The Internet use IP addresses to identify and locate network interfaces of connected devices. IPv4 was introduced more than 40 years ago and specifies 32-bit addresses. As the Internet grew, available IPv4 addresses eventually became exhausted more than ten years ago. The IETF designed IPv6 with a much larger addressing space consisting of 128-bit addresses, pushing back the exhaustion problem much
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AppClassNet: a commercial-grade dataset for application identification research: ACM SIGCOMM Computer Communication Review: Vol 52, No 3 ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-09-06 Chao Wang, Alessandro Finamore, Lixuan Yang, Kevin Fauvel, Dario Rossi
The recent success of Artificial Intelligence (AI) is rooted into several concomitant factors, namely theoretical progress coupled with abundance of data and computing power. Large companies can take advantage of a deluge of data, typically withhold from the research community due to privacy or business sensitivity concerns, and this is particularly true for networking data. Therefore, the lack of
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The April 2022 issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Steve Uhlig
This April 2022 issue contains five technical papers and two editorial notes. The first technical paper, Data-Plane Security Applications in Adversarial Settings, by Liang Wang and colleagues, investigates security issues that may arise when creating and running data-plane applications for programmable switches. This work moves security analysis and design forward in this particular area. This paper
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Data-plane security applications in adversarial settings ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Liang Wang, Prateek Mittal, Jennifer Rexford
High-speed programmable switches have emerged as a promising building block for developing performant data-plane applications. In this paper, we argue that the resource constraints and programming model of hardware switches have led to developers adopting problematic design patterns, whose security implications are not widely understood. We bridge the gap by identifying the major challenges and common
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One bad apple can spoil your IPv6 privacy ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Said Jawad Saidi, Oliver Gasser, Georgios Smaragdakis
IPv6 is being more and more adopted, in part to facilitate the millions of smart devices that have already been installed at home. Unfortunately, we find that the privacy of a substantial fraction of end-users is still at risk, despite the efforts by ISPs and electronic vendors to improve end-user security, e.g., by adopting prefix rotation and IPv6 privacy extensions. By analyzing passive data from
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Hyper-specific prefixes: gotta enjoy the little things in interdomain routing: ACM SIGCOMM Computer Communication Review: Vol 52, No 2 ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Khwaja Zubair Sediqi, Lars Prehn, Oliver Gasser
Autonomous Systems (ASes) exchange reachability information between each other using BGP---the de-facto standard inter-AS routing protocol. While IPv4 (IPv6) routes more specific than /24 (/48) are commonly filtered (and hence not propagated), route collectors still observe many of them. In this work, we take a closer look at those "hyper-specific" prefixes (HSPs). In particular, we analyze their prevalence
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Programming socket-independent network functions with nethuns ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Nicola Bonelli, Fabio Del Vigna, Alessandra Fais, Giuseppe Lettieri, Gregorio Procissi
Software data planes running on commodity servers are very popular in real deployments. However, to attain top class performance, the software approach requires the adoption of accelerated network I/O frameworks, each of them characterized by its own programming model and API. As a result, network applications are often closely tied to the underlying technology, with obvious issues of portability over
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Measuring DNS over TCP in the era of increasing DNS response sizes: a view from the edge: ACM SIGCOMM Computer Communication Review: Vol 52, No 2 ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Mike Kosek, Trinh Viet Doan, Simon Huber, Vaibhav Bajpai
The Domain Name System (DNS) is one of the most crucial parts of the Internet. Although the original standard defined the usage of DNS over UDP (DoUDP) as well as DNS over TCP (DoTCP), UDP has become the predominant protocol used in the DNS. With the introduction of new Resource Records (RRs), the sizes of DNS responses have increased considerably. Since this can lead to truncation or IP fragmentation
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A case for an open customizable cloud network ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Kathy Barabash, David Breitgand, Etai Lev-Ran, Dean H. Lorenz, Danny Raz
Cloud computing is transforming networking landscape over the last few years. The first order of business for major cloud providers today is to attract as many organizations as possible to their own clouds. To that end cloud providers offer a new generation of managed network solutions to connect the premises of the enterprises to their clouds. To serve their customers better and to innovate fast,
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Recommendations for designing hybrid conferences ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-06-20 Vaibhav Bajpai, Oliver Hohlfeld, Jon Crowcroft, Srinivasan Keshav, Henning Schulzrinne, Jörg Ott, Simone Ferlin, Georg Carle, Andrew Hines, Alexander Raake
During the COVID-19 pandemic, many smaller conferences have moved entirely online and larger ones are being held as hybrid events. Even beyond the pandemic, hybrid events reduce the carbon footprint of conference travel and makes events more accessible to parts of the research community that have difficulty traveling long distances, while preserving most advantages of in-person gatherings. While we
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The January 2022 issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Steve Uhlig
This January 2022 issue contains three technical papers and four editorial notes.
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Zeph & Iris map the internet: A resilient reinforcement learning approach to distributed IP route tracing ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Matthieu Gouel, Kevin Vermeulen, Maxime Mouchet, Justin P. Rohrer, Olivier Fourmaux, Timur Friedman
We describe a new system for distributed tracing at the IP level of the routes that packets take through the IPv4 internet. Our Zeph algorithm coordinates route tracing efforts across agents at multiple vantage points, assigning to each agent a number of /24 destination prefixes in proportion to its probing budget and chosen according to a reinforcement learning heuristic that aims to maximize the
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Towards retina-quality VR video streaming: 15ms could save you 80% of your bandwidth ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Luke Hsiao, Brooke Krajancich, Philip Levis, Gordon Wetzstein, Keith Winstein
Virtual reality systems today cannot yet stream immersive, retina-quality virtual reality video over a network. One of the greatest challenges to this goal is the sheer data rates required to transmit retina-quality video frames at high resolutions and frame rates. Recent work has leveraged the decay of visual acuity in human perception in novel gaze-contingent video compression techniques. In this
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Towards client-side active measurements without application control ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Palak Goenka, Kyriakos Zarifis, Arpit Gupta, Matt Calder
Monitoring performance and availability are critical to operating successful content distribution networks. Internet measurements provide the data needed for traffic engineering, alerting, and network diagnostics. While there are significant benefits to performing end-user active measurements, these capabilities are limited to a small number of content providers with application control. In this work
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Roadmap for edge AI: a Dagstuhl perspective ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Aaron Yi Ding, Ella Peltonen, Tobias Meuser, Atakan Aral, Christian Becker, Schahram Dustdar, Thomas Hiessl, Dieter Kranzlmüller, Madhusanka Liyanage, Setareh Maghsudi, Nitinder Mohan, Jörg Ott, Jan S. Rellermeyer, Stefan Schulte, Henning Schulzrinne, Gürkan Solmaz, Sasu Tarkoma, Blesson Varghese, Lars Wolf
Based on the collective input of Dagstuhl Seminar (21342), this paper presents a comprehensive discussion on AI methods and capabilities in the context of edge computing, referred as Edge AI. In a nutshell, we envision Edge AI to provide adaptation for data-driven applications, enhance network and radio access, and allow the creation, optimisation, and deployment of distributed AI/ML pipelines with
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M-Lab: user initiated internet data for the research community ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Phillipa Gill, Christophe Diot, Lai Yi Ohlsen, Matt Mathis, Stephen Soltesz
Measurement Lab (M-Lab) is an open, distributed server platform on which researchers have deployed measurement tools. Its mission is to measure the Internet, save the data and make it universally accessible and useful. This paper serves as an update on the MLab platform 10+ years after its initial introduction to the research community [5]. Here, we detail the current state of the M-Lab distributed
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Important concepts in data communications ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Craig Partridge
The data communications field recently marked the 50th anniversary of the start of the ARPANET, which was one of the first and certainly the most influential of the early data communications networks. The anniversary provoked discussions about which concepts or ideas in data communications have proven to be enduring in the evolution of data communications. This paper presents one perspective
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Answering three questions about networking research ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2022-03-01 Jennifer Rexford, Scott Shenker
Researchers often talk about specific technical trends or research topics. But we rarely talk about how and why we do the research that we do. The process of submitting and reviewing papers puts our ideas through a particular kind of filter that may make all of the research seem like it follows some standard rubric, a SIGCOMM Normal Form if you will. During a panel at HotNets'21, five researchers---Hari
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The October 2021 issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-12-03 Steve Uhlig
This October 2021 issue contains two technical papers, two educational contributions, and one editorial note.
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When latency matters ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-12-03 Marco Iorio, Fulvio Risso, Claudio Casetti
Several emerging classes of interactive applications are demanding for extremely low-latency to be fully unleashed, with edge computing generally regarded as a key enabler thanks to reduced delays. This paper presents the outcome of a large-scale end-to-end measurement campaign focusing on task-offloading scenarios, showing that moving the computation closer to the end-users, alone, may turn out not
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REDACT ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-12-03 Arjun Devraj, Liang Wang, Jennifer Rexford
Refraction networking is a promising censorship circumvention technique in which a participating router along the path to an innocuous destination deflects traffic to a covert site that is otherwise blocked by the censor. However, refraction networking faces major practical challenges due to performance issues and various attacks (e.g., routing-around-the-decoy and fingerprinting). Given that many
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Machine learning-based analysis of COVID-19 pandemic impact on US research networks ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-12-03 Mariam Kiran, Scott Campbell, Fatema Bannat Wala, Nick Buraglio, Inder Monga
This study explores how fallout from the changing public health policy around COVID-19 has changed how researchers access and process their science experiments. Using a combination of techniques from statistical analysis and machine learning, we conduct a retrospective analysis of historical network data for a period around the stay-at-home orders that took place in March 2020. Our analysis takes data
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An educational toolkit for teaching cloud computing ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-12-03 Cosimo Anglano, Massimo Canonico, Marco Guazzone
In an educational context, experimenting with a real cloud computing platform is very important to let students understand the core concepts, methodologies and technologies of cloud computing. However, API heterogeneity of cloud providers complicates the experimentation by forcing students to focus on the use of different APIs, and by hindering the jointly use of different platforms. In this paper
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Data-driven networking research ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-12-03 Jeffrey C. Mogul, Priya Mahadevan, Christophe Diot, John Wilkes, Phillipa Gill, Amin Vahdat
We in Google's various networking teams would like to increase our collaborations with academic researchers related to data-driven networking research. There are some significant constraints on our ability to directly share data, which are not always widely-understood in the academic community; this document provides a brief summary. We describe some models which can work - primarily, interns and visiting
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The July 2021 issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 Steve Uhlig
Presentation of the July 2021 issue of CCR.
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NemFi ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 Abhishek kumar Mishra, Sara Ayoubi, Giulio Grassi, Renata Teixeira
This paper presents NemFi: a trace-driven WiFi emulator. NemFi is a record-and-replay emulator that captures traces representing real WiFi conditions, and later replay these traces to reproduce the same conditions. In this paper, we demonstrate that the state-of-the-art emulator that was developed for cellular links cannot emulate WiFi conditions. We identify the three key differences that must be
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The graph neural networking challenge ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 José Suárez-Varela, Miquel Ferriol-Galmés, Albert López, Paul Almasan, Guillermo Bernárdez, David Pujol-Perich, Krzysztof Rusek, Loïck Bonniot, Christoph Neumann, François Schnitzler, François Taïani, Martin Happ, Christian Maier, Jia Lei Du, Matthias Herlich, Peter Dorfinger, Nick Vincent Hainke, Stefan Venz, Johannes Wegener, Henrike Wissing, Bo Wu, Shihan Xiao, Pere Barlet-Ros, Albert Cabellos-Aparicio
During the last decade, Machine Learning (ML) has increasingly become a hot topic in the field of Computer Networks and is expected to be gradually adopted for a plethora of control, monitoring and management tasks in real-world deployments. This poses the need to count on new generations of students, researchers and practitioners with a solid background in ML applied to networks. During 2020, the
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P4Pi ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 Sándor Laki, Radostin Stoyanov, Dávid Kis, Robert Soulé, Péter Vörös, Noa Zilberman
High level, network programming languages, like P4, enable students to gain hands-on experience in the structure of a switch or router. Students can implement the packet processing pipeline themselves, without prior knowledge of circuit design. However, when choosing a P4 programmable target for use in the classroom, instructors face a lack of options. On the one hand, software solutions, such as the
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Limited domains considered useful ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 Brian Carpenter, Jon Crowcroft, Dirk Trossen
Limited domains were defined conceptually in RFC 8799 to cater to requirements and behaviours that extend the dominant view of IP packet delivery in the Internet. This paper argues not only that limited domains have been with us from the very beginning of the Internet but also that they have been shaping innovation of Internet technologies ever since, and will continue to do so. In order to build limited
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Collaboration in the IETF ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 Michael Welzl, Stephan Oepen, Cezary Jaskula, Carsten Griwodz, Safiqul Islam
RFC 9000, published in May 2021, marks an important milestone for the Internet's standardization body, the Internet Engineering Task Force (IETF): finally, the specification of the QUIC protocol is available. QUIC is the result of a five-year effort - and it is also the second of two major protocols (the first being SPDY, which later became HTTP/2) that Google LLC first deployed, and then brought to
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Workshop on Overcoming Measurement Barriers to Internet Research (WOMBIR 2021) final report ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 KC Claffy, David Clark, John Heidemann, Fabian Bustamante, Mattijs Jonker, Aaron Schulman, Ellen Zegura
In January and April 2021 we held the Workshop on Overcoming Measurement Barriers to Internet Research (WOMBIR) with the goal of understanding challenges in network and security data set collection and sharing. Most workshop attendees provided white papers describing their perspectives, and many participated in short-talks and discussion in two virtual workshops over five days. That discussion produced
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A square law revisited ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-07-23 Brian E. Carpenter
An earlier study observed that until 2008, the size of the BGP4 system for IPv4 appeared to have grown approximately in proportion to the square root of the host count of the globally addressable Internet. This article revisits this study by including IPv4 data until 2020 and adding IPv6 data. The results indicate that BGP4 for IPv4 is continuing to scale steadily even as IPv4 approaches its end of
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The April 2021 issue ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 Steve Uhlig
This April 2021 issue contains one technical paper as well as five editorial notes.
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Surviving switch failures in cloud datacenters ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 Rachee Singh, Muqeet Mukhtar, Ashay Krishna, Aniruddha Parkhi, Jitendra Padhye, David Maltz
Switch failures can hamper access to client services, cause link congestion and blackhole network traffic. In this study, we examine the nature of switch failures in the datacenters of a large commercial cloud provider through the lens of survival theory. We study a cohort of over 180,000 switches with a variety of hardware and software configurations and find that datacenter switches have a 98% likelihood
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The Netivus Manifesto ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 Joseph Severini, Radhika Niranjan Mysore, Vyas Sekar, Sujata Banerjee, Michael K. Reiter
We study operational issues faced by Small and Medium Enterprise (SME) network owners and find that SME network management practices have stagnated over the past decade, despite many recent advances in network management. Many of these advances target hyperscalers and ISPs and cannot be directly applied to SME networks that are operated with vastly different constraints. In our work, we outline these
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Revitalizing the public internet by making it extensible ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 Hari Balakrishnan, Sujata Banerjee, Israel Cidon, David Culler, Deborah Estrin, Ethan Katz-Bassett, Arvind Krishnamurthy, Murphy McCauley, Nick McKeown, Aurojit Panda, Sylvia Ratnasamy, Jennifer Rexford, Michael Schapira, Scott Shenker, Ion Stoica, David Tennenhouse, Amin Vahdat, Ellen Zegura
There is now a significant and growing functional gap between the public Internet, whose basic architecture has remained unchanged for several decades, and a new generation of more sophisticated private networks. To address this increasing divergence of functionality and overcome the Internet's architectural stagnation, we argue for the creation of an Extensible Internet (EI) that supports in-network
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Workshop on Internet Economics (WIE 2020) final report ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 kc claffy, David Clark
On 16-17 December 2020, CAIDA hosted the 11th interdisciplinary Workshop on Internet Economics (WIE) in a virtual Zoom conference. This year our goal was to gather feedback from researchers on their experiences using CAIDA’s data for economics or policy research. We invited all researchers who reported use of CAIDA data in these disciplines. We discussed their successes and challenges of using the
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SatNetLab ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 Ankit Singla
The space industry is moving rapidly towards offering low-latency and high-bandwidth global Internet coverage using low Earth orbit satellites. Such networks represent "one giant leap" in Internet infrastructure, both in their goals and the underlying technology. Due to their unique characteristics, they open up new opportunities, and pose new research challenges. I thus lay out a case for networking
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Great educators in computer networking ACM SIGCOMM Comput. Commun. Rev. (IF 2.8) Pub Date : 2021-05-10 Matthew Caesar, Bruce Davie
This interview is part of a series on Great Educators in Computer Networking, where we interview some of the most impactful and skilled educators in our field. Here, we interviewed Australian Bruce Davie, the self-described computer scientist/engineer/runner/cyclist, who agreed to talk to us about his thoughts on computer networking education, his role in it, his thoughts about the big ideas in our