- mat-wg - mailman.ripe.net

Call for presentations at MAT WG at RIPE 92
by Stephen Strowes 02 Mar '26

02 Mar '26

Hi all, RIPE 92 will take place 18 -- 22 May in Edinburgh. We are seeking presentations for the MAT WG session, scheduled for Tuesday, the 19th of May! 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 Proposals can be submitted through the Pretalx submission system: https://pretalx.ripe.net/ripe-92/ The submission form will ask you for various details. Please select the MAT track, and include a title & abstract: if accepted these will become part of the public agenda. For our evaluation, please include the following in your proposal: * An outline of your presentation under 'notes' or, preferably, a draft slide deck. To attach a deck you may need to submit then go back and attach to the submission. * Note whether you intend to present in person or online * Also state the slot duration you'd like; we tend towards 15-20 minutes including Q&A, but please specify The deadline for MAT WG proposals is 21 April 2026. 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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Join the Using RIPE Atlas Webinar on 4 July 2024 - Registration Open
by training mailbox 26 Feb '26

26 Feb '26

Dear colleagues, We are pleased to announce that the RIPE NCC will host another *Using RIPE Atlas Webinar* session on *Thursday, 4 July 2024*. *Duration*: 2 hours *Cost*: Free *Open to*: Everyone interested This webinar helps you to monitor your network and troubleshoot it with RIPE Atlas. Create specific tailor-made measurements that suit your needs using API calls or the command line interface. *Prerequisites:* - Basic knowledge of networks - How the Internet works - Basic understanding of IP, ASN, domains - Familiarity with pings and traceroutes *After this webinar, you will be able to:* - Monitor your network using RIPE Atlas measurements - Troubleshoot your network using measurements from RIPE Atlas - Use the RIPE Atlas command line interface and the API to create tailor-made measurements For more *information and registration*, please visit: https://learning.ripe.net/w/courses/17-using-ripe-atlas-webinar *Help Us Spread the Word*: We'd greatly appreciate your support in promoting this webinar. Please share our social media posts with your network: *LinkedIn*: https://www.linkedin.com/posts/ripe-ncc_webinar-onlinelearning-bgp-activity… *Facebook*: https://www.facebook.com/share/p/9XkXAtTPxve7dH3E/ *X (Twitter)*: https://x.com/ripencc/status/1805210020272914863 Thank you for your assistance in helping us reach a wider audience. Kind regards, Olivia Ruimwijk RIPE NCC -- To unsubscribe from this mailing list, get a password reminder, or change your subscription options, please visit: https://www.ripe.net/mailman/listinfo/mat-wg/

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Help Us Improve the IPv6 Hitlist Service – Quick Survey (5 min)
by Oliver Gasser 18 Feb '26

18 Feb '26

Hey everyone! 👋 We're looking to improve the IPv6 Hitlist Service [1] and would love your input. If you're doing any sorts of IPv6 measurements, please consider taking our short survey — it only takes about 5 minutes and will directly shape how we develop the service going forward. 👉 https://forms.gle/SJ42dfswTEtqfjvR8 👈 Thanks in advance for your help! 🙏 Cheers, Oliver [1] https://ipv6hitlist.github.io/

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Re: mat-wg Digest, Vol 150, Issue 1 Re: deliverable: ACCOUNT NUMBER IBAN NUMBER BANK MELLAT:IR17 0120 0100 0000 3315 9929 37 Date: Sat, 7 Feb 2026 02:09:03 +0330 Deliverable Subject: Re:Info Document BankMellat Iban Number IR17 0120 0100 0000 3315 9929...
by dana yazdani 08 Feb '26

08 Feb '26

دریافت Outlook برای Android<https://aka.ms/AAb9ysg> ________________________________ فرستنده: mat-wg-request(a)ripe.net <mat-wg-request(a)ripe.net> تاریخ ارسال: چهارشنبه, ژانویهٔ 28, 2026 1:24:18 ب.ظ گیرنده: mat-wg(a)ripe.net <mat-wg(a)ripe.net> موضوع: mat-wg Digest, Vol 150, Issue 1 Send mat-wg mailing list submissions to mat-wg(a)ripe.net To subscribe or unsubscribe via email, send a message with subject or body 'help' to mat-wg-request(a)ripe.net You can reach the person managing the list at mat-wg-owner(a)ripe.net When replying, please edit your Subject line so it is more specific than "Re: Contents of mat-wg digest..." Today's Topics: 1. Re: RPKIViews 2021-2025 Amalgamations: a near-complete capture of the entire RPKI (Job Snijders) 2. What is up with PCH? (Malte Tashiro) 3. Re: What is up with PCH? (Thomas Holterbach) ---------------------------------------------------------------------- Message: 1 Date: Fri, 23 Jan 2026 14:11:02 +0000 From: Job Snijders <job(a)bsd.nl> Subject: [mat-wg] Re: RPKIViews 2021-2025 Amalgamations: a near-complete capture of the entire RPKI To: mat-wg(a)ripe.net Message-ID: <aXOBdpXaJ4KRPQ1j(a)feather.sobornost.net> Content-Type: text/plain; charset=us-ascii Dear all, A query on the dataset shows the following statistics for the 'rpki.ripe.net' hosted CA system, in 2025: object type count ROA 107,465 ASPA: 518 Certificate: 29,365 CRL 20,455,248 Manifest 20,455,248 It would be super cool to learn from RIPE NCC itself (as ground truth) how many CRLs/ROAs/Manifest objects the RIPE NCC issued according to their own logs & database. It would be quite helpful, because this way we can get sense of the 'completeness' of the RPKIViews amalgamations. I asked a few other RIRs... but it seems that the ones I asked didn't have issuance logs available. Does the RIPE NCC have an estimate how many ROAs/MFTs/CRLs/Certificates it issued in 2025 within the scope of 'rsync://rpki.ripe.net/repository'? Kind regards, Job On Fri, Jan 23, 2026 at 12:44:46PM +0000, Job Snijders wrote: > 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 ----- ------------------------------ Message: 2 Date: Wed, 28 Jan 2026 16:38:26 +0900 From: Malte Tashiro <malte(a)iij.ad.jp> Subject: [mat-wg] What is up with PCH? To: mat-wg(a)ripe.net Message-ID: <1bb97965-daf3-4a9e-9fa2-afc61565fe13(a)iij.ad.jp> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------zuZw50mLi4xbWhdAwFNcntbu" 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 -------------- next part -------------- A message part incompatible with plain text digests has been removed ... Name: OpenPGP_0x7D82498BEF2E08F8.asc Type: application/pgp-keys Size: 644 bytes Desc: OpenPGP public key -------------- next part -------------- A message part incompatible with plain text digests has been removed ... Name: OpenPGP_signature.asc Type: application/pgp-signature Size: 236 bytes Desc: OpenPGP digital signature ------------------------------ Message: 3 Date: Wed, 28 Jan 2026 10:53:53 +0100 From: Thomas Holterbach <tholterbach(a)unistra.fr> Subject: [mat-wg] Re: What is up with PCH? To: Malte Tashiro <malte(a)iij.ad.jp> Cc: mat-wg(a)ripe.net Message-ID: <866FED20-0CFD-4B54-90EC-8E6A6E294583(a)unistra.fr> Content-Type: multipart/alternative; boundary="Apple-Mail=_4BC453FE-9E3A-4390-A9BA-6333BAF20732" Hello Malte, Good question. We reported the issue to them quite quickly in November, as we collect their data for bgproutes.io. They told us they had to change a server because many crawlers were downloading the data and overloading their infrastructure. It was apparently supposed to last only a few days, but it has now been several months. I hope they will be able to resume the platform, we really like it there! Best regards, Thomas > On 28 Jan 2026, at 08:38, Malte Tashiro via mat-wg <mat-wg(a)ripe.net> wrote: > > 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 > <OpenPGP_0x7D82498BEF2E08F8.asc>----- > To unsubscribe from this mailing list or change your subscription options, please visit: https://mailman.ripe.net/mailman3/lists/mat-wg.ripe.net/ > As we have migrated to Mailman 3, you will need to create an account with the email matching your subscription before you can change your settings. > More details at: https://www.ripe.net/membership/mail/mailman-3-migration/ -------------- next part -------------- A message part incompatible with plain text digests has been removed ... Name: not available Type: text/html Size: 2072 bytes Desc: not available ------------------------------ Subject: Digest Footer ----- To unsubscribe from this mailing list or change your subscription options, please visit: https://mailman.ripe.net/mailman3/lists/mat-wg.ripe.net/ As we have migrated to Mailman 3, you will need to create an account with the email matching your subscription before you can change your settings. More details at: https://www.ripe.net/membership/mail/mailman-3-migration/ ------------------------------ End of mat-wg Digest, Vol 150, Issue 1 **************************************

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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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