- mat-wg - mailman.ripe.net

New on RIPE Labs: Why is the Internet so Slow?
by Mirjam Kuehne 23 Jun '17

23 Jun '17

Dear colleagues, Ilker Nadi Bozkurt and his colleagues found that the Internet is much slower than it could be. They wonder where this slowdown comes from and what can be done about it. Among other sets of measurements, the team also uses RIPE Atlas. Please see the article on RIPE Labs: https://labs.ripe.net/Members/mirjam/why-is-the-internet-so-slow Kind regards, Mirjam Kühne RIPE NCC

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New on RIPE Labs: Using Raspberry Pis for Cheap Wi-Fi Monitoring
by Mirjam Kuehne 21 Jun '17

21 Jun '17

Dear colleagues, Wi-Fi monitoring solutions can be expensive and inflexible. Fredrik Strupe, Software developer at UNINETT, describes how they're developing a system to tackle this problem. Read more on RIPE Labs: https://labs.ripe.net/Members/fredrik_strupe/using-raspberry-pis-for-cheap-… Kind regards, Mirjam Kühne RIPE NCC

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New on RIPE Labs: Using RIPE Atlas Measurement Results in Prometheus
by Mirjam Kuehne 09 Jun '17

09 Jun '17

Dear colleagues, In this new article on RIPE Labs Daniel Czerwonk describes how he is exporting metrics based on RIPE Atlas results to Prometheus in order to monitor and visualise trends in latency, packet loss and hop counts. https://labs.ripe.net/Members/daniel_czerwonk/using-ripe-atlas-measurement-… Kind regards, Mirjam Kuhne RIPE NCC

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New on RIPE Labs: Analysis of RIPEstat Outage
by Mirjam Kuehne 08 Jun '17

08 Jun '17

Dear colleagues, Last Thursday, 1 June, RIPEstat suffered from the longest service outage in years. Although the root cause was, in hindsight, trivial, it took more than three hours to fully recover. As unfortunate as this outage was, the situation yielded vital take-aways that will hopefully help prevent future outages. Please find an analysis on RIPE Labs: https://labs.ripe.net/Members/cteusche/sand-in-the-gears Kind regards, Mirjam Kuhne RIPE NCC

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color blindness and color meaning association
by Job Snijders 28 May '17

28 May '17

Hi all, TL;DR - red/green color palettes should be avoided in data visualiations, please pick something else! Yesterday I saw Christian Teuschel present on the "Jedi" tool at SINOG, and two things stood out: A) the data visualisations do not attempt to accomodate for people who are color blind, in fact, the worst colors possible were picked B) by using using common traffic light colors (green, orange, red) an implicit judgement is made on the meaning of the data (traffic crossing an internet exchange was seemingly favored over private peering) To point (A) - red–green color blindness which affect a substantial portion of the human population. In the US, about 7 percent of the male population (or about 10.5 million men) and 0.4 percent of the female population either cannot distinguish red from green, or see red and green differently from how others do (Howard Hughes Medical Institute, 2006). There are quite some pointers as to how to design color palettes which accomodate everyone. http://www.somersault1824.com/tips-for-designing-scientific-figures-for-col… http://blog.usabilla.com/how-to-design-for-color-blindness/ B) As I understand the "Jedi" tool, it shows matrixes of what traffic between atlas probes leaves the country, and what traffic remains within the country - offering insight into a reflection on a country's internal routing arrangements. I'm a big fan of keeping local traffic local, so the tool certainly has value. However, the tool displays traffic which passes over an IXP within the country as green, and traffic that says within the country but didn't cross an IXP as "orange". Since the majority of internet traffic flows over direct, private interconnections between ASNs, signifying that traffic as "orange", has the potential to be taken as a "wrong", rather then as an arbitrary datapoint. I suggest that the Jedi tool either uses the same color for ixp and non-ixp "within country" traffic (and perhaps a small icon is used to signify the additional data attribute that an IXP was observed in the traceroute), or that the jedi tool uses entirely arbitrary colors that have no inherent meaning like the traffic light colors do. Kind regards, Job

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New on RIPE Labs: Introduction to the Quantum Internet
by Mirjam Kuehne 26 May '17

26 May '17

Dear colleagues, At RIPE 74, Stephanie Wehner, Associate Professor at the University of Technology in Delft, The Netherlands, presented about the status of the Quantum Internet and encouraged a lot of hallway chat about that topic. She now published a summary on RIPE Labs: https://labs.ripe.net/Members/becha/introduction-to-the-quantum-internet Please also note the invitation to the Open Day at QuTech in Delft at the end of the article. Kind regards, Mirjam Kuhne RIPE NCC

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New on RIPE Labs: Anycast Latency: How Many Sites are Enough?
by Mirjam Kuehne 24 May '17

24 May '17

Dear colleagues, Please find this new article on RIPE Labs by Jan Harm Kuipers, researcher at the University of Twente: Anycast Latency: How Many Sites are Enough? Jan Harm has been studying the relationship between latency and anycast using the RIPE Atlas network: https://labs.ripe.net/Members/jh_kuipers/anycast-latency-how-many-sites-are… Kind regards, Mirjam Kuhne RIPE NCC

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New on RIPE Labs: RIPE NCC Technical Services 2017
by Mirjam Kuehne 05 May '17

05 May '17

Dear colleagues, In preparation of Kaveh Ranjbar's presentation at the RIPE NCC Services working group session next week in Budapest, please find on RIPE Labs a high-level report on the status and plans for our technical services and tools on. It has three parts: 1. Focus on RIPE Atlas https://labs.ripe.net/Members/kranjbar/ripe-ncc-technical-services-2017-par… 2. Focus on our DNS services https://labs.ripe.net/Members/kranjbar/ripe-ncc-technical-services-2017-par… 3. Focus on Tools and research activities: https://labs.ripe.net/Members/kranjbar/ripe-ncc-technical-services-2017-par… Kind regards, Mirjam Kuhne RIPE NCC

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New on RIPE Labs: BBR TCP (by Geoff Huston)
by Mirjam Kuehne 05 May '17

05 May '17

Dear colleagues, Please find this new article on BBR TCP by Geoff Huston on RIPE Labs: https://labs.ripe.net/Members/gih/bbr-tcp Kind regards, Mirjam Kuhne RIPE NCC

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Draft Agenda for the MAT WG at RIPE74
by Christian Kaufmann 26 Apr '17

26 Apr '17

Hello All, This is the draft agenda for the Measurement, Analysis and Tools Working Group session at RIPE74: A. Introduction: Welcome, Scribe, Jabber, Agenda - 5m B. Fast.com - Sergey Fodorov - 20 mins C. v6 Health Metric with NOMA - Leslie Dangle - 20 min D. Atlas News - Robert Kisteleki - 15 min E. Traceroute Visualisation - Massimo Candela - 20 min F. Russian Hackathon Examples - Alexander Isavnin - 10 min Z. AOB Timings are approximate:-) The session will take place at 14:00 local time on Wednesday 10th May. See you in Budapest! Nina and CK MAT WG Chairs

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