Category Archives: Uncategorized

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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