Category Archives: Uncategorized

Thanks and Good Bye!

As everything good also the MAMI project comes to an end, or actually came to an end, as it is officially over since Dec 2018. Last week we also had our final review meeting and that now really means, it’s … Continue reading

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Observing the Evolution of ECN Support with the PTO

If you’ve followed the MAMI project over the past three years, you know that we are big fans of Explicit Congestion Notification (ECN). First, it provides an illustrative case study of the deployment of an optional transport protocol feature: standardized … Continue reading

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MAMI Active Measurement Hackathon in Aberdeen, Scotland

On the 5th December 2018 we kicked off a two-day hackathon with participants from MAMI and the Open Observatory of Network Interference at the University of Aberdeen. The goal of the hackathon was to share experiences in Internet measurement between … Continue reading

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The Future of Middlebox Cooperation in the Internet Protocol Stack

As you may have read in our last post, the MAMI project is celebrating the hard-won, long-discussed consensus to add a spin bit to QUIC. The spin bit was conceived as the minimum useful explicit signal one could add to … Continue reading

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IETF 103 Bangkok

The MAMI project was back at the IETF for the last time — as a project, anyway — last month at IETF 103 in Bangkok. Join us on a trip through the week! Hackathon: Loss-Latency Tradeoff in Mobile Networks Most … Continue reading

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The MAMI Management and Measurement Summit

Just before IETF 101 in London in March, the MAMI project hosted an invitation-only MAMI Management and Measurement Summit (M3S), bringing together researchers, engineers, and vendors for a focused discussion on how to meet the challenges posed to network measurement … Continue reading

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IETF 102 Montreal

The IETF week started on Saturday with the hackthon. Diego, Pedro and I (Thomas) have been working on a variety of topics: a “STAR Requests” slide deck for the upcoming SecDispatch meeting, an architecture design for an end-to-end ACME STAR … Continue reading

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Summer School on Internet Path Transparency Measurements

On June the 11th the Electronics Research Group hosted the MAMI Summer School on Internet Path Transparency Measurements in Aberdeen, Scotland. This consisted of a few hands-on workshops, with participation both on-site and remote via video conference. The summer school … Continue reading

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2. Edition of the MAMI/MONROE workshop on Mobile Network Measuremnt (MNM’18)

On June 25, we held another edition of the Mobile Network Measuremnt (MNM’18) workshop together with the MONROE project. As last year the workshop was co-located with the Network Traffic Measurement and Analysis Conference (TMA 2018) which was held this … Continue reading

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IETF101 in London, March 17-23

Last month, the IETF returned to the Hilton Metropole near Paddington Station in London for its 101st meeting. While it is always nice to go to an IETF meeting in Europe (and therefore suffer less from jet-lag), in this specific … Continue reading

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PATHspider has exciting new features in release 2.0.0

PATHspider is a free-software extensible path transparency measurement tool that performs path transparency measurements using either real network stacks or packet forging. A new major version, 2.0.0, has just been released and is packed with new features to expand the … Continue reading

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IETF 100

A few of us from the MAMI project started arriving in Singapore on Friday, in order to participate in the hackathon, which has become an IETF tradition. A few hours later we were at our tables, Thomas Fossati and James … Continue reading

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MAMI @ IMC’17 in London

The MAMI project was represented at the Internet Measurement Conference (IMC) 2017 last week in London wiht two posters: An Observatory for Internet Path Transparency Mirja Kühlewind and Brian Trammell (ETH Zurich) Enhancing encrypted transport protocols with passive measurement capabilities … Continue reading

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Is Internet RTT reliable for geolocation?

Short, short answer: nope, don’t bother. While this is probably obvious to any of you with network engineering experience, we thought we’d use RIPE Atlas to have a look into this question anyway. In the context of an ongoing conversation … Continue reading

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IETF99: QUIC, TAPS, PAN(P)RG, MAPRG, ACME, BANANA, IPPM, … a busy week in Prague!

Two weeks ago, 16-21 July 2017, the IETF returned to Prague, as it apparently does every few years now, and the MAMI project went with it. As with last summer’s IETF (96, in Berlin), our meeting started a day early … Continue reading

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Joint MAMI/MONROE workshop on Mobile Network Measurements (MNM’17) held on June 20 in Dublin

On June 20, we had a joint workshop with the EU-H2020 MONROE project on Mobile Network Measurements (MNM). The workshop was held in conjunction with TMA Conference 2017 in Dublin/Maynooth which was a great fit for this workshop and our … Continue reading

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QUIC Interim WG Meeting, Paris, June 6-8

The QUIC transport protocol, developed by Google and currently under standardization in the IETF, is of central interest to our project. QUIC is an encrypted transport protocol encapsulated in UDP, as those we aim to support with our MCP; indeed, … Continue reading

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Chasing the Big NAT across Europe and the U.S. with NAT Revelio

In light of the IPv4 address scarcity problem, one approach towards prolonging the life of current IPv4 address allocations is to deploy Carrier Grade NATs (CGNs), where Internet Service Providers (ISPs) share the same public IPv4 address across multiple end … Continue reading

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What happened at IETF98 in Chicago, March 26-31?

Expecting an usual, not particular special IETF meeting, the 98th meeting two weeks ago in Chicago was actually quite exciting, in a positive sense. A lot of work, relevant to the architecture as well as measurement objectives of the MAMI … Continue reading

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Frist Prize at IETF98 Hackathon for “connection identifier” in DTLS group!

On Saturday and Sunday at the IETF there always is a Hackathon. This time at IETF-98 members of the MAMI consoritum were working on the implementation of the “connection identifier” in DTLS, a fairly recent proposal Hannes Tschofenig, Nikos Mavrogiannopoulos, … Continue reading

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Post Sockets Workshop

MAMI partner ETH Zürich hosted a small workshop last month to discuss a topic central to our vision: how to move network programming beyond the 1980s-era BSD sockets API.  The workshop had two main goals. First, to sync up and share concepts … Continue reading

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Path Transparency Observatory (PTO) goes live!

One of the core objectives of the MAMI project is to perform measurements and collect measurement data that can help to quantify middlebox impairments on the Internet. While various impairments on different layers of the protocol stack have been detected … Continue reading

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Technical Plenay in Seville

On Feb 7/8 the MAMI project met in Seville for the third technical plenary meeting. Besides the great Spanish food and tapas crawl organized and guided by our technical project coordinator Diego Lopez, we made good progress on the technical … Continue reading

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Slow going for TCP Fast Open

As part of our continued effort to measure Internet path transparency with PathSpider, we’ve taken a look at the state of deployment and potential impairments to TCP Fast Open. TCP Fast Open is an extension to TCP that allows data to be … Continue reading

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A Public Targets List

Comparability of measurements and repeatability of experiments is key to science, and active Internet measurement studies are no different. Active measurement studies need not only open descriptions of the experiment (preferably with open source code and analysis, as we use … Continue reading

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MAMI at IETF97

MAMI was represented by ETH Zürich at the 97th meeting of the Internet Engineering Task Force in Seoul. The biggest news this time around was the first meeting of the QUIC working group, which will standardize a next-generation, encrypted transport protocol … Continue reading

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PATHspider Plugins

In today’s Internet we see an increasing deployment of middleboxes. While middleboxes provide in-network functionality that is necessary to keep networks manageable and economically viable, any packet mangling — whether essential for the needed functionality or accidental as an unwanted … Continue reading

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Web Performance is in the Eye(org) of the User

Tremendous effort is undergoing to make the Web faster. However, quantifying speed on the Web is complex: usually we are attempting to capture human perception with a computer-generated metric. In many studies, participants are simply shown a page loading, in … Continue reading

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MAMI at IETF96

The MAMI project was out in force at last week’s IETF 96 meeting in Berlin. The Measurement and Analysis for Protocols Research Group, founded by MAMI partner ETH and chaired by coordinator Mirja Kühlewind and external advisor Dave Plonka from Akamai, … Continue reading

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Applied Networking Research Workshop at IETF-96

The first ACM, IRTF & ISOC Applied Networking Research Workshop 2016 (ANRW ‘16) was held in co-location with IETF-96 on July 16, 2016, in Berlin. The MAMI project conributed with one full paper and three short papers describing multipath bonding … Continue reading

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2. MAMI Plenary Meeting in Berlin

The MAMI project held its second technical plenary on July 13-15, 2016, in Berlin. This time also members of the External Advisory Board (EAB) participated. Thanks for your time, fruitful discussions and very valuable input! Also special thanks Joe Hildebrand … Continue reading

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70% of popular Web sites support ECN

One of the primary goals of MAMI’s measurement work is to quantify path transparency in the Internet: how likely a given transport protocol or feature is to work on which paths, and how these features break. Earlier work by MAMI partners ETH … Continue reading

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MAMI at RIPE72

MAMI was represented at RIPE 72 in Copenhagen with two presentations by ETH. First, Mirja Kühlewind presented a possible application of MAMI’s Middlebox Cooperation Protocol (MCP) in “What if we designed measurement as a first-order service?”, an exploration of what … Continue reading

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MAMI at IETF95

IETF95 was held last week (3-8 April) in Buenos Aires, Argentina, and the MAMI project was out in force. First and foremost, project coordinator Mirja Kühlewind assumed the office of IETF Transport Area Director at the plenary meeting on Wednesday … Continue reading

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MAMI Promo Tour started

Over the last few weeks, we went around and gave a couple of presentations about the current and planned work in MAMI. Feedback was very positive and we identified more friendly people to work with. If you want to learn … Continue reading

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MAMI Kickoff Meeting in Zürich

The MAMI project held its first plenary meeting at the Networked Systems Group at ETH Zürich this week. The technical agenda included detailed discussions of measurement tool design, the beginnings of the detailed specification of our Path Transparency Observatory (as … Continue reading

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MAMI webpage updated

The MAMI webpages has been updated to now contain more information on the project’s objectives, work package structure as well as standardization efforts. Also check out our github at https://github.com/mami-project. Next thing to do is our first plenary meeting on … Continue reading

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Welcome to MAMI

MAMI (“Measurement and Architecture for a Middleboxed Internet”) is a European Commission Horizon 2020 funded research project. Our consortium is made up of seven European universities, research laboratories, and industrial partners. We aim to rearchitect the Internet to allow explicit … Continue reading

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