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New on RIPE Labs: Preparing for the 2016 Leap Second
by Mirjam Kuehne 15 Dec '16

15 Dec '16

Dear colleagues, On 31 December this year, we're scheduled for another leap second. There are many stories about what leap seconds can do to infrastructure and applications, and rituals are built up around them. Please read more on RIPE Labs in an article contributed by our new colleague Stephen Strowes: Preparing for the 2016 Leap Second https://labs.ripe.net/Members/stephen_strowes/preparing-for-the-2016-leap-s… Kind regards, Mirjam Kuehne RIPE NCC

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RIPE Atlas Success Story: Zoom-in on Germany
by Vesna Manojlovic 12 Dec '16

12 Dec '16

Dear all, we wrote an article as an example of how cross-pollination between communities can create success. An overlap between IETF participants, RIPE Atlas users and listeners of a popular German podcast has led to growth in the deployment of RIPE Atlas probes. We are still interested in expanding this platform in areas and networks that need more coverage. For pictures & links, go here: https://labs.ripe.net/Members/becha/ripe-atlas-success-story-zoom-in-on-ger… Text is bellow. Regards, Vesna In July 2016, during the IETF meeting in Berlin, the popular "RFC podcast" had a special episode aired an interview with Daniel Karrenberg talking about the RIPE NCC and RIPE Atlas. Thanks to the podcast listeners, and with the help of promotion on Twitter, the episode prompted many, many, MANY applications for new RIPE Atlas probe hosts. Because of both summer vacations and a temporary shortage of probes, there was a delay in shipping - but when the new batch of probes arrived at our office, we started shipping them to applicants, most of whom were from Germany. Currently, with regard to the number of active probes, Germany is leading with more than 1,000. This is more than the USA, which was in the lead for the previous few years. If you want to zoom in to this success-story, you can take a look at this RIPEstat widget. There you can see that, between 22 September and 7 October, the number of activated probes jumped from 999 to 1,157. Thank you to all the hosts, in Germany and elsewhere, who are helping to build RIPE Atlas - the largest active measurements platform! Actions Although we are happy that there is so much enthusiasm in Germany, we are still interested in increasing diversity of coverage. To this end, we're looking to reach out to: - Regions, countries and areas within countries with fewer probes - Networks (ASNs) with fewer probes - Deploying RIPE Atlas anchors instead If you would like to apply for your own RIPE Atlas probe, there is a special link just for the readers of this RIPE Labs article :) If you already have a probe, and want to get in touch: - Check out the Community pages - Follow us on Twitter - Be active on the mailing list

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New on RIPE Labs: Internet Access Disruption In The Gambia - 2016
by Mirjam Kuehne 02 Dec '16

02 Dec '16

Dear colleagues, We had a look at various RIPE NCC data sets to see what we can learn from yet another country-wide Internet outage in 2016 - this time The Gambia. https://labs.ripe.net/Members/emileaben/internet-access-disruption-in-the-g… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Reasons Dynamic Addresses Change
by Mirjam Kuehne 29 Nov '16

29 Nov '16

Dear colleagues, Please find this new article on RIPE Labs by Ramakrishna Padmanabhan: Reasons Dynamic Addresses Change Rama looked at why dynamic addresses change and found ISPs that renumber periodically, most commonly every 24 hours or a multiple of 24 hours. He also found that outages influence address changes. RIPE Atlas was used for the measurements. https://labs.ripe.net/Members/ramakrishna_padmanabhan/reasons-dynamic-addre… Kind regards, Mirjam Kuehne RIPE NCC

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Fifteen new RIPE Atlas anchors have joined the community
by Michela Galante 24 Nov '16

24 Nov '16

Dear colleagues, Fifteen new RIPE Atlas anchors have been activated since our last announcement in September, bringing the total number to 231: - us-bos-as26167, hosted by Markley Group in Boston, United States (IPv4-only anchor) - us-pct-as88, hosted by Princeton University in Princeton, United States (IPv4-only anchor) - tz-dar-as327844, hosted by Tanzania ISP Association in Dar es Salaam, Tanzania and ke-nbo-as37578, hosted by TESPOK in Nairobi, Kenya. These are the first two of five anchors that ISOC will sponsor. - dk-aal-as9158 and dk-cph-as9158, hosted by Telenor Denmark A/S in Aalborg and Copenhagen, Denmark - au-syd-as135150, hosted by bet365 in Sydney, Australia - ca-wnp-as16395, hosted by asn16395 in Winnipeg, Canada - us-ljl-as195, hosted by Center for Applied Internet Data Analysis (CAIDA) at the University of California, San Diego in La Jolla, United States - nz-akl-as38064, hosted by NZ Registry Services in Auckland, New Zealand - us-bos-as111, hosted by the Boston University in Boston, United States - kw-kwi-as42961, hosted by Zain Kuwait in Kuwait City, Kuwait - nl-ede-as12859-client, hosted by HCC in Ede, Netherlands - it-rom-as24796, hosted by NaMeX Consortium in Rome, Italy - us-fcn-as32934, hosted by Facebook in Forest City, United States. You can find the full list of anchors, a map of their locations, a list of the hosting organisations and more information about RIPE Atlas anchors online: https://atlas.ripe.net/anchors/list/ Interested in hosting a RIPE Atlas anchor? Learn more: https://atlas.ripe.net/get-involved/become-an-anchor-host/ We are particularly interested in deploying anchors in the Middle East, Western Asia, Latin America and Africa in order to add more geographical diversity to the measurement data. There are several organisations that want to host a RIPE Atlas anchor but don’t have the necessary funding. To learn more about sponsoring an anchor, or for any other questions, please contact us at atlas(a)ripe.net And don’t forget to let us know if you’re doing something interesting with RIPE Atlas data - we always want to hear about your use cases, research and experiences! Regards, Michela Galante RIPE NCC

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New on RIPE Labs: Large BGP Communities - Largely Accepted Now?
by Mirjam Kuehne 11 Nov '16

11 Nov '16

Dear colleagues, Large BGP Communities are an addition to BGP that solves a communication problem between networks that want to use 32-bit AS Numbers. We measured how Large BGP Communities behave "in the wild" and if they create any problems. Please find the results on RIPE Labs: https://labs.ripe.net/Members/emileaben/large-bgp-communities-largely-accep… Kind regards, Mirjam Kuehne RIPE NCC

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Ethical considerations
by Robert Kisteleki 07 Nov '16

07 Nov '16

Dear All, As mentioned in my RIPE Atlas update during the RIPE 73 MAT working group, we'd like to draw RIPE Atlas users’ attention to relevant ethical considerations. We've just published a RIPE Labs article about this: https://labs.ripe.net/Members/kistel/ethics-of-ripe-atlas-measurements/ Regards, Robert Kisteleki RIPE NCC

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New on RIPE Labs: A Practical Comparison Between RIPE Atlas and ProbeAPI
by Mirjam Kuehne 25 Oct '16

25 Oct '16

Dear colleagues, Please find this new article on RIPE Labs contributed by Cristian Varas: A Practical Comparison Between RIPE Atlas and ProbeAPI https://labs.ripe.net/Members/cristian_varas/a-practical-comparison-between… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: A Quick Look at the Attack on Dyn
by Mirjam Kuehne 24 Oct '16

24 Oct '16

Dear colleagues, We used a number of RIPE NCC tools and data sets to take a quick look at the recent DDoS attack on Dyn’s infrastructure. We wanted to see if this could be found in the data produced by the RIPE Atlas community. Please see on RIPE Labs: https://labs.ripe.net/Members/massimo_candela/a-quick-look-at-the-attack-on… Kind regards, Mirjam Kuehne RIPE NCC

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MAT Draft Agenda V2.0 for RIPE73
by Christian Kaufmann 24 Oct '16

24 Oct '16

Hello All, This is the updated draft agenda for the Measurement, Analysis and Tools Working Group session at RIPE73: A. Introduction: Welcome, Scribe, Jabber, Agenda - 5m B. Wireless Performance Measurement and Verification Using the end-user mobile device feedback - Anna Wilson - 20 min C. What’s hiding behind IPv6 extension headers? - Luuk Hendriks - 15 m D. RIPE ATLAS update - Robert Kisteleki - 10 m E. Add system tag for the probes behind "nanny filter" - Remco van Mook - 5 min F. Country Topology map Using Atlas - Sebastian Castro - 15 min G. Speed checker comparison with Atlas - Janusz Jezowicz - 15 min Z. AOB Timings are approximate:-) The session will take place at 15:00 local time on Wednesday 26th October. See you in Madrid! Nina and CK MAT WG Chairs

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