- mat-wg - mailman.ripe.net

New on RIPE Labs: New RIPE Atlas APIs
by Mirjam Kuehne 23 May '16

23 May '16

Dear colleagues, We've updated the RIPE Atlas APIs - and there's a comprehensive new manual to explain how to use them. As a result, the current (version 1) APIs are still available for now, but will be deprecated by the end of the year. Please find more information on RIPE Labs: https://labs.ripe.net/Members/suzanne_taylor_muzzin/new-ripe-atlas-apis?pk_… Kind regards, Mirjam Kuehne RIPE NCC

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v4 versus v6 -- who connects faster?
by Bajpai, Vaibhav 23 May '16

23 May '16

Hello, -- sorry for cross-posting Here [a] is a toy v6 service I came up with during the RIPE Atlas hackathon over this weekend. Thought I share this along: [a] http://goo.gl/hbzbwD You enter a dual-stacked website (ALEXA top 10K) and it shows you the difference in TCP connect times over v4 and v6 as seen by all dual-stacked RIPE Atlas probes (~1.3K probes). You can also filter the visualisation from a specific origin-AS. This additional filter can be useful to view performance towards a website from a specific origin-AS (say DTAG). Disclaimer: This is an outcome of a 1.5d long hackathon project. As such, the codebase is possibly inundated with bugs. Please don’t see it as a production service :-) Best, Vaibhav =================================== Vaibhav Bajpai www.vaibhavbajpai.com Room 91, Research I School of Engineering and Sciences Jacobs University Bremen, Germany ===================================

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New on RIPE Labs: There Is Gold in This Stream - Sifting Through Used RIPE Atlas Traceroute Results
by Mirjam Kuehne 20 May '16

20 May '16

Dear colleagues, Please find a new article on RIPE Labs demonstrating the value of the results collected by RIPE Atlas independent of the original purpose for collecting them. Using all traceroute results from a particular day as an example, we first show that near real-time analysis of the result stream is feasible. Then we show that this has great potential for studying the packet layer of the Internet in general and for providing tools to network operators in particular. All this suggests a large and diverse potential for further work. https://labs.ripe.net/Members/dfk/there-is-gold-in-this-stream?pk_campaign=… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Pinpointing Delay and Forwarding Anomalies using RIPE Atlas Built-in Measurements
by Mirjam Kuehne 18 May '16

18 May '16

Dear colleagues, Detecting network disruptions is a recurring problem. Clearly locating performance degradation is an important step in debugging and subsequently fixing connectivity issues. In this new RIPE Labs article the authors propose a set of complementary methods to detect network disruptions from traceroute measurements created by RIPE Atlas Built-In Measurements: https://labs.ripe.net/Members/romain_fontugne/pinpointing-delay-and-forward… Kind regards, Mirjam Kuehne RIPE NCC

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[dagstuhl seminar]: global measurements: practice and experience
by Bajpai, Vaibhav 12 May '16

12 May '16

Dear RIPE Atlas / MAT WG -- sorry for cross-posting. A SIGCOMM CCR article summarising the Dagstuhl seminar on ‘Global Measurements: Practice and Experience’ just came online [a]. Thought to share it with you: [a] http://www.sigcomm.org/sites/default/files/ccr/papers/2016/April/0000000-00… Background: ===================== We recently helped organise a Dagstuhl seminar on Global Measurements: Practice and Experience [b] from January 04 – 07, 2016. This was a followup of the seminar on Global Measurement Framework [c] which focused on the development of global Internet measurement platforms and associated metrics. [b] http://www.dagstuhl.de/16012 [c] http://www.dagstuhl.de/13472 The second seminar aimed at discussing the practical experience gained with building global measurement platforms. It brought together people who are actively involved in the design and maintenance of global measurement systems, who do research on the data delivered by global measurement systems, and who use data derived from global measurement systems in order to manage networks or services or as input for regulatory decisions. ===================== Best, Vaibhav =================================== Vaibhav Bajpai www.vaibhavbajpai.com Room 91, Research I School of Engineering and Sciences Jacobs University Bremen, Germany ===================================

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New on RIPE Labs: Using RIPE Atlas to Debug Network Connectivity Problems
by Mirjam Kuehne 10 May '16

10 May '16

Dear colleagues, Please find this new article by Stéphane Bortzmeyer on RIPE Labs where he explains how he used RIPE Atlas probes, the official RIP Atlas API and custom scripts, to debug network issues: https://labs.ripe.net/Members/stephane_bortzmeyer/using-ripe-atlas-to-debug… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Connectivity in the LAC Region
by Mirjam Kuehne 04 May '16

04 May '16

Dear colleagues, Please find this guest post by Agustín Formoso, Software Developer at LACNIC, on RIPE Labs: Connectivity in the LAC Region https://labs.ripe.net/Members/mirjam/connectivity-in-the-lac-region?pk_camp… Kind regards, Mirjam Kuehne RIPE NCC

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Agenda - RIPE72 MAT WG
by Nina Bargisen 03 May '16

03 May '16

Hello All, This is the draft agenda for the Measurement, Analysis and Tools Working Group session at RIPE72: A. Introduction: Welcome, Scribe, Jabber, Agenda - 5m B. Measuring DNSSEC Configuration of Upstream Resolvers with RIPE Atlas - Moritz Mueller - 15m C. Vantage Point Selection for IPv6 Measurements: Benefits and Limitations of RIPE Atlas Tags - Vaibhav Bajpai - 10m D. Internet Path Transparency Measurements using RIPE ATLAS - Brian Trammell - 20m E. RIPE ATLAS news - Vesna - 20m F. RIPE ATLAS Hackathon winner - 10m Z. AOB - 5m Timings are approximate:-) The session will take place at 14:00 local time on Wednesday 25th May. See you in Copenhagen! Nina and CK MAT WG Chairs

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New on RIPE Labs: How Elasticsearch and Kibana Help us Analyse RIPE Atlas Data Logs
by Mirjam Kuehne 29 Apr '16

29 Apr '16

Dear colleagues, RIPE Atlas backend applications run on more than 40 servers. Each day these machines can produce thousands of application logs of any kind of severity level. In order to be able to track down serious errors, warnings or even unusual behaviour, we decided some time ago to try Elasticsearch as a logging sink. In this article we will look at the design of such a system and describe how we can easily make sense from an ocean of logs: https://labs.ripe.net/Members/andreas_strikos/how-elasticsearch-and-kibana-… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Broadband Services and Infrastructure Mapping
by Mirjam Kuehne 28 Apr '16

28 Apr '16

Dear colleagues, Please find on RIPE Labs a short report about a conference on Broadband Services and Infrastructure Mapping, where a number of interesting mapping projects were presented. Emile Aben attended and presented RIPE Atlas: https://labs.ripe.net/Members/emileaben/broadband-services-and-infrastructu… Kind regards, Mirjam Kuehne RIPE NCC

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