- mat-wg - mailman.ripe.net

What is up with PCH?
by Malte Tashiro 29 Jan '26

29 Jan '26

Hello there, does anyone by chance know what's up with PCH data? https://www.pch.net/resources/Routing_Data/ The page for the daily routing snapshots became unresponsive sometime in November last year and has been consistently serving error 503 recently. I've opened a ticket back then but got no response, so maybe somebody here knows the reason. Best, Malte

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RPKIViews 2021-2025 Amalgamations: a near-complete capture of the entire RPKI
by Job Snijders 23 Jan '26

23 Jan '26

This might interest some of you: a (nearly?) complete capture of the raw RPKI data of the last 5 years. Kind regards, Job ----- Forwarded message from Job Snijders <job(a)bsd.nl> ----- Date: Fri, 23 Jan 2026 10:43:37 +0000 From: Job Snijders <job(a)bsd.nl> To: sidrops(a)ietf.org Subject: RPKIViews 2021-2025 Amalgamations: a near-complete capture of the entire RPKI Dear all, The RPKI is an infrastructure which helps secure the global Internet routing system. The RPKI is a distributed database. RPKIViews.org is a global multi-perspective data collection initiative. I've normalized, deduplicated, merged, sorted, and recompressed tens of terabytes of RPKI data, resulting in handy datasets named the "RPKIViews Amalgamations". These compact datasets together contain basically every ROA, ASPA, CRL, Manifest, and Certificate that were issued in the last 5 years. RPKIViews 2021 Amalgamation, 46,507,392 RPKI objects doi: https://doi.org/10.5281/zenodo.18082494 compressed: 33.8 gigabytes (uncompressed: 78.1 gigabytes). RPKIViews 2022 Amalgamation, 51,850,445 RPKI objects doi: https://doi.org/10.5281/zenodo.18327144 compressed: 41.7 gigabytes (uncompressed: 110.2 gigabytes). RPKIViews 2023 Amalgamation, 57,286,485 RPKI objects doi: https://doi.org/10.5281/zenodo.18327429 compressed: 48.7 gigabytes (uncompressed: 111.8 gigabytes). RPKIViews 2024 Amalgamation, 56,586,149 RPKI objects doi: https://doi.org/10.5281/zenodo.18328474 compressed: 51.4 gigabytes (uncompressed: 115.5 gigabytes). RPKIViews 2025 Amalgamation, 61,524,413 RPKI objects doi: https://doi.org/10.5281/zenodo.18332099 compressed: 58.4 gigabytes (uncompressed: 145.0 gigabytes) The DER-encoded objects originally were fetched from publication servers which were discovered using the Trust Anchor Locators of the following Regional Internet Registries: AfriNIC, APNIC, ARIN, LACNIC, and RIPE NCC. Not all objects contained within this dataset comply with the requirements of modern day RPKI relying party implementations. The following file naming scheme is used for the tar archive members: every filename is the URL-safe Base64-encoded SHA-256 message digest of the object's ASN.1 encoded content. For performance reasons, the directory hierarchy is constructed using the last few bytes of the filename. The file's recorded last-modification timestamp is constructed following the procedure outlined in RFC 9589. The tar achive adheres to the IEEE Std 100.2 POSIX.2 "USTAR" interchange format and is compressed in "--long -19" Zstandard (RFC 8878) form. Individual objects can be inspected as JSON with "rpki-client -jf ./path/to/object" (filemode). Happy hacking & sleuthing! :-) Kind regards, Job ----- End forwarded message -----

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Hamburg: Full-time PhD Position in Internet Measurement and Resilience
by Thomas C. Schmidt 13 Jan '26

13 Jan '26

Full-time PhD Position in Internet Measurement and Research for a Resilient Internet The INET research group is offering a PhD position in the field of Internet Measurement and Network Analysis. The position is part of the research project ALL#Hands, funded by the Federal Ministry of Research, Technology and Space. The successful candidate is expected to contribute to data-centric network monitoring to improve Internet resilience and security. Joining the INET team will allow you both conducting cutting-edge research and contributing to open-source software projects in collaboration with relevant Internet stakeholders. See https://www.inet.haw-hamburg.de/jobs/phd-position-research-for-internet-res… Please don't hesitate to contact me in case of any question. Thomas -- Prof. Dr. Thomas C. Schmidt ° Hamburg University of Applied Sciences Berliner Tor 7 ° ° Dept. Informatik, Internet Technologies Group 20099 Hamburg, Germany ° ° http://inet.haw-hamburg.de/members/schmidt Fon: +49-40-42875-8452 °

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some thoughts on add-path and bmp at ripe/ris
by Randy Bush 19 Nov '25

19 Nov '25

i have some small thoughts on add-path and BMP in RIPE/RIS. this may hinder more than help, unfortunately. as a researcher, of course i would love a wider view into the AS graph and the views of as many ASs as possible. nom nom. but ... add-path, if not done very carefully, and documented in detail for each peer, will produce views i will not understand. it is analogous to not knowing what view a BGP peer gives RIS today. did it give me a full Nth view into peer X? is the path that of a peer, a customer, a provider? and add-path is worse because it prunes in configuration and vendor- dependent and otherwise unpredictable ways. and, as an operator if P is a RIS peer, and they give RIS BMP showing their input from their peers, upstreams, and customers, those peers, upstreams, and customers have not given thir consent to have their internals published! if they want to have RIS publish their internals, they would peer with RIS and choose what view they present. and, of course, the researcher does not know what view, peer, upstream, or customer P's BMP peer is giving them. same problem as above under add-path. randy

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RIPE 91 MAT WG agenda
by Stephen Strowes 21 Oct '25

21 Oct '25

Hi all, We're pleased to share our agenda for the upcoming MAT WG session at RIPE 91! The session will take place in the main room on Tuesday, 21 October, 16:00 -- 17:30 local time (which is UTC +0300). Our planned agenda is: *16:00 [05 min]: *WG chairs, welcome *16:05 [20 min]: *Geoff Huston: Preserving Privacy vs Open Measurement *16:25 [15 min]: *Raffaele Sommese: Disrupting the Internet in the name of copyright: An Italian Story *16:40 [15 min]: *Remi Hendriks: An empirical evaluation of longitudinal anycast catchment stability *16:55 [15 min]: *Ties de Kock: Querying the DFZ *17:10 [15 min]: *Willem Toorop: Who is really running email? *17:25 [05 min]: *WG chairs, closing remarks If you have not yet registered for RIPE91, you can do so at https://ripe91.ripe.net/register/ We are looking forward to seeing you all at the session! S.

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IMWG Agenda - LACNIC44 / LACNOG2025
by Elisa 16 Sep '25

16 Sep '25

Dear all, We are happy to announce the agenda for the next session of the Internet Measurements Working Group (IMWG) at LACNIC 44/LACNOG 2025. The session will take place on Friday, October 10. We look forward to seeing you in San Salvador or remotely! --- AGENDA --- 11:30 - 11:45 - Welcome - Chairs 11:45 - 12:05 - Analyzing the Effect of an Extreme Weather Event on Telecommunications and Information Technology: Insights from 30 Days of Flooding - Leandro Bertholdo 12:05 - 12:25 - Mapping DNS blocking trends in LATAM - Camila Breventano 12:25 - 12:40 - IPv6 Adoption Measurement in the LAC Region: Current Status, Challenges, and Future Perspectives - Kamruzzaman Khan 12:40 - 12:55 - Tracking Visibility Gaps in Allocated Internet Resources - Pedro Ferreira 12:55 - 13:00 - Closing Remarks - Chairs Best regards, Massimo, Elisa (IMWG Chairs)

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Removal of three low-usage RIPEstat endpoints on 13 October
by Ties de Kock 12 Sep '25

12 Sep '25

Dear colleagues, Over the past year, we have been migrating RIPEstat infrastructure to a new environment. As part of this process, we reviewed all components to ensure long-term maintainability. Three components with very low usage and ongoing data issues will be deprecated and removed in a month. We are announcing the immediate deprecation of the following API endpoints: * /data/speedchecker-bandwidth-measurements/… * /data/meternet-bandwidth-measurements/… * /data/generic-data (undocumented) These endpoints have not been visible in RIPEstat for a considerable period and have experienced ongoing issues with data updates. Removing these endpoints will reduce our application and systems maintenance overhead. These endpoints are deprecated with immediate effect and will be completely removed on 13 October 2025. Analysis shows very low external usage of these endpoints (fewer than 10 IP addresses in August 2025). We therefore do not expect this change to affect most users. However, we recognise that API deprecations can be disruptive, and we welcome feedback from anyone who relies on these services. We are particularly interested in hearing from users who require bandwidth measurement data, as we understand this represents a niche but potentially valuable use case. We would like to understand your specific usage patterns and requirements for this type of data. If the removal of these endpoints will impact your operations, please contact us immediately. Kind regards, Ties de Kock RIPE NCC

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Call for presentations at MAT WG at RIPE 91
by Stephen Strowes 29 Aug '25

29 Aug '25

Hi all, RIPE 91 will take place 20 -- 24 October in Bucharest. We are seeking presentations for the MAT WG session, scheduled on Tuesday, 21 October! Interesting topics include (but are not limited to): * Measurement research which has an operational impact * Operational initiatives that could inspire new research directions * Projects focused on network data collection * Tools for network data analysis and visualization * Innovative measurement techniques and proposals Starting from RIPE 91, both plenary and working group proposals can be submitted through the same system, Pretalx: https://pretalx.ripe.net/ripe91/ The Pretalx submission form will ask you for various details. Please select the MAT track, and include a title & abstract (these will eventually become public). For our evaluation, please include the following in your proposal: * an outline of your presentation (under 'notes') or provide a draft slide deck * the slot duration you'd like; we tend towards 15-20 minutes including Q&A, but please specify * whether you intend to present in person or online The deadline for MAT WG proposals is 15 September 2025. We will make our selections and post our agenda soon after. If you have any questions, please contact us at mat-wg-chairs [at] ripe.net. Thanks! - Nina, Massimo, Stephen as WG chairs

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Planned maintenance to data.ris.ripe.net, ftp.ripe.net, data-store.ripe.net on 25 July, 11:00-15:00 UTC
by Ties de Kock 01 Aug '25

01 Aug '25

Dear colleagues, The webserver that distributes RIS files, data.ris.ripe.net, as well as ftp.ripe.net and data-store.ripe.net, will be down for maintenance on 25 July. During the maintenance, a storage appliance will be moved to a different data centre. This is part of the RIPE NCC’s effort to reduce our data centre footprint and increase the geographical distance between our data centres. BGP sessions with RIS collectors will be established as usual, and no data will be lost. However, downloads from https://data.ris.ripe.net will not be available. Other RIS services are not affected. Start: Friday July 25, 2025 11:00 UTC End: Friday July 25, 2025 15:00 UTC Affected: * data.ris.ripe.net * ftp.ripe.net * data-store.ripe.net We expect service to be unavailable for two hours in this window. Kind regards, Ties de Kock RIPE NCC

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Forecasting Cloud Performance with RIPE Atlas
by Alun Davies 22 May '25

22 May '25

Dear colleagues, What kind of latency do cloud service users actually experience? Can we forecast future connectivity performance based on latency characteristics for specific locations? New on RIPE Labs, Rita Ingabire and colleagues share answers to these questions and more based on the findings of a three-month traceroute study they conducted using RIPE Atlas: https://labs.ripe.net/author/rita-ingabire/forecasting-cloud-performance-wi… Best regards, Alun Davies RIPE Labs Editor RIPE NCC

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