- mat-wg - mailman.ripe.net

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.

2 1

some thoughts on add-path and bmp at ripe/ris
by Randy Bush 24 Sep '25

24 Sep '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

3 4

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)

1 0

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

1 0

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

1 1

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

1 2

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

1 0

MAT WG agenda for RIPE90
by Massimo Candela 13 May '25

13 May '25

Dear all, The MAT working group session will take place on Tuesday 13 May at 16:00 UTC+1. This is the agenda: 16:00 - Welcome - Chairs 16:05 - Lost in Encryption: Monitoring Audio and Video Flows without Payload in Video-Conferencing Applications - Julien Gamba 16:20 - WhoActuallyIs? Finding the Companies Behind the Networks - Joshua Levett 16:30 - Pontus: A Memory-Efficient and High-Accuracy Approach for Persistence-Based Item Lookup in High-Velocity Data Streams - Weihe Li 16:45 - Frontiers of LEO Space Networks: Understanding the Intricacies of Starlink's Internet Access - Nitinder Mohan 17:00 - Hardware-assisted Virtual Networking for low-latency network services - Florian Wiedner 17:15 - RIPE Atlas and RIPEstat updates - Robert Kisteleki 17:20 - Closing Remarks - Chairs See you in Lisbon! Ciao, Massimo (for the MAT WG Chairs)

1 1

Call for presentations for MAT WG at RIPE 90
by Massimo Candela 01 Apr '25

01 Apr '25

Hi all, RIPE90 will take place 12-16 May in Lisbon. We are seeking presentations for the MAT WG session, scheduled on Tuesday, 13 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 Please submit your proposal at mat-wg-chairs [at] ripe.net by **Thursday 17 April**. Include the following in your email: * a title * a draft of the presentation (an outline is okay!) * a paragraph describing the topic and why it is of interest to the community * whether you intend to present in person or online Thanks! Nina, Stephen, Massimo as WG Chairs

2 1

release of the new RIPEstat UI
by Ties de Kock 27 Feb '25

27 Feb '25

Dear colleagues, Following our announcement last week on the RIPE discussion list [0], we have now deployed the new user interface for RIPEstat: https://stat.ripe.net. We invite you to take a look and share any feedback you might have with us. To learn more about the new RIPEstat UI and what has changed, check out this article: https://labs.ripe.net/author/ties/introducing-the-new-ripestat-ui. Best regards, Ties de Kock RIPE NCC On behalf of the RIPEstat team [0]: https://mailman.ripe.net/archives/list/ripe-list@ripe.net/message/L7S3RGSCJ…

1 0

New on RIPE Labs: Easy RIPE Atlas Data Analysis with SQL
by Alun Davies 12 Feb '25

12 Feb '25

Dear colleagues, In this step-by-step guide on RIPE Labs, Giovane Moura and Andra Ionescu dig into RIPE Atlas data to show how fans of SQL can use DuckDB as an alternative to Pandas for data analysis. Read more on RIPE Labs: https://labs.ripe.net/author/giovane_moura/easy-ripe-atlas-data-analysis-wi… Best regards, Alun Davies RIPE Labs Editor RIPE NCC

1 0

A Deep Dive Into the Baltic Sea Cable Cuts
by Emile Aben 27 Dec '24

27 Dec '24

Dear colleagues, last week we posted our analysis on the Baltic Sea cable cuts using the traceroutes that the RIPE Atlas anchor mesh produced: https://labs.ripe.net/author/emileaben/a-deep-dive-into-the-baltic-sea-cabl… We hope this provides for some interesting reading and insights about these events, and also about where we could improve our RIPE Atlas anchor deployments to better see the effects of these types of events. kind regards, Emile Aben RIPE NCC

1 0

Join Us for the "Exploring the RIPE Atlas UI" Webinar on 17 December 2024
by Olivia Ruimwijk 11 Dec '24

11 Dec '24

Dear all, We are excited to invite you to the upcoming *Exploring the RIPE Atlas UI Webinar*, scheduled for *Tuesday, 17 December 2024*. Join Stephen Suess for a 45-minute webinar showcasing the key features and tools of the RIPE Atlas UI. This interactive session is designed to enhance your understanding and usage of this powerful platform. *By the end of this webinar, you will be able to:* - Identify and utilise key RIPE Atlas UI features to efficiently find and analyse existing Internet measurements. - Evaluate various data visualisation and analysis tools to gain meaningful insights from measurement results. - Customise the RIPE Atlas UI to suit specific usage patterns and prioritise the information you need. *For more information and to register, please visit:* https://learning.ripe.net/w/courses/64-exploring-the-ripe-atlas-ui/305 Kind regards, Olivia Ruimwijk Training Coordinator RIPE NCC

1 0

MAT WG agenda for RIPE89
by Massimo Candela 29 Oct '24

29 Oct '24

Dear all, The MAT working group session will take place on Tuesday 29 October at 16:00 CET. This is the agenda: 16:00 - 16:05 - Welcome - Chairs 16:05 - 16:20 - Measuring and Visualizing DNS Watersheds - Jim Cowie 16:20 - 16:30 - A First Look at User-Installed Residential Proxies From a Network Operator's Perspective - Etienne Khan 16:30 - 16:45 - IoT bricks over v6 - Tianrui Hu 16:45 - 17:00 - Target Acquired? Evaluating Target Generation Algorithms for IPv6 - Lion Steger 17:00 - 17:15 - What’s in the Dataset? Unboxing the APNIC User Populations - Vasilis Giotsas 17:15 - 17:25 - RPKI flutter - Emile Aben 17:25 - 17:30 - Closing Remarks - Chairs If you are not already registered: https://ripe89.ripe.net/attend/register/ See you in Prague! Ciao, Massimo (for the MAT WG chairs)

1 1

A Detailed Look at Our Recent RIPE Atlas Infrastructure Migration
by Robert Kisteleki 02 Oct '24

02 Oct '24

Dear colleagues, Today we published a RIPE Labs article about the work we've been doing on the RIPE Atlas infrastructure. Please feel free to read it here: https://labs.ripe.net/author/kistel/a-detailed-look-at-our-recent-ripe-atla… Regards, Robert Kisteleki RIPE NCC

1 0

Changes to the RIPEstat UI
by Ties de Kock 01 Oct '24

01 Oct '24

Dear colleagues, Over the next few months, we will be making changes to RIPEstat, our information service and open data platform. Most noteworthy, we will introduce a new user interface (UI) that combines elements of the two previous versions introduced in 2013 and 2020. Initially, we will focus on reverting to the 2013 UI and adding the unique features that were available only in the 2020 UI. Afterwards, we will continue building on what we have, and on what we learned, and build something better that aligns with what our users need. Finally, we will sunset the 2020 UI as we continue developing the newer user interface. Our decision was made after extensive user research whilst we maintained two interfaces for a few years, and tried to bridge the gap between the ‘old’ and ‘new’. Our aim now is not simply to bring back an older platform, but to focus on the elements that matter to RIPEstat users the most, and build on them to modernise the product altogether. You can read more details about our decision in our RIPE Labs article: https://labs.ripe.net/author/adonis_stergiopoulos/streamlining-ripestat-bui… We welcome your comments on this mailing list, on the RIPE NCC Forum or by emailing us at stat(a)ripe.net. Kind regards, Ties de Kock Specialist software engineer RIPE NCC

1 0

Some historical RIPEstat data will not be available from 24 September
by Felipe Silveira 30 Sep '24

30 Sep '24

Dear colleagues, As we shared back in May, we have been working to reduce our data centre footprint by managing the data for RIS and RIPEstat more efficiently[1]. We have experienced some problems which mean that parts of the historical RIPEstat data will not be available for an extended period. To reduce our data centre usage, we have been exporting RIS-related datasets from the database that contains our largest datasets (HBase) to a new environment, which allows us to decommission our old Hadoop cluster. During the migration, we encountered timeouts and memory limitations with old servers and software that held historical data. Here we faced a difficult choice: we could either extend our data centre contracts at considerable additional cost, or we could accept that certain historical data would not be available to users for an extended period. We decided on the second approach. It is important to be clear that we haven’t lost anything here. However, this does mean that we will not be able to provide aggregated historical data for a number of API calls and their corresponding widgets for some time after we complete our migration. These include: as-path-length, as-routing-consistency, asn-neighbours, asn-neighbours-history, bgp-update-activity, bgp-state, bgp-updates, bgplay, ris-peerings, routing-status, visbility. As mentioned, this has been a difficult process. We may still encounter other issues when we make the switch to the new environment tomorrow (24 September). My team is doing their utmost to keep any disruption to a minimum, but there are no guarantees everything will go to plan. We will be looking at the most efficient way to rebuild access to the historical data in the coming months, and we will share more details in an article on RIPE Labs soon. Kind regards, Felipe Victolla Silveira Chief Technology Officer RIPE NCC [1] For more on this, refer to the following: - Reducing our Data Centre Footprint (RIPE Labs): https://labs.ripe.net/author/felipe_victolla_silveira/reducing-the-ripe-ncc… - RIPE 88 Technology Update (slides 10-20): https://ripe88.ripe.net/wp-content/uploads/presentations/89-RIPE-88-RIPE-NC…

3 2

RIPEstat database migration postponed
by Felipe Silveira 26 Sep '24

26 Sep '24

Dear colleagues, Following Monday’s announcement, we have decided to postpone the move of our largest datasets (HBase) to a new environment by one month. As I mentioned in my last email, this has been an unexpectedly complex process that has required a massive effort from our engineering teams. To ensure that RIPEstat will continue operating, we did not feel confident going ahead when this could result in the service being severely disrupted. I am sure many of you have questions. We plan to publish a RIPE Labs article with more details soon, including which historical data will be delayed when the migration is fully completed. Kind regards, Felipe Victolla Silveira Chief Technology Officer RIPE NCC

1 0

Call for presentations for MAT WG at RIPE 89
by Massimo Candela 26 Aug '24

26 Aug '24

Hi all, RIPE89 will take place 28 Oct - 1 Nov in Prague. We are seeking presentations for the MAT WG session, scheduled on Tuesday, 29 Oct! Interesting topics (not limited to): * Measurement research, preferably with 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 Submit your proposal at mat-wg-chairs [at] ripe.net by **Friday 4 October**. Include in your proposal: * a title * a draft of the presentation (an outline is okay) * a paragraph describing the topic and why it is of interest to the community * if you are planning to present in person or remote. Thanks! Nina, Stephen, Massimo as WG Chairs

1 0

Join the Using RIPE Atlas Webinar on 4 July 2024 - Registration Open
by training mailbox 28 Jun '24

28 Jun '24

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/

1 0

Session started at RIPE88
by Massimo Candela 22 May '24

22 May '24

Hi all, The MAT session started at RIPE88. Join remotely at: https://ripe88.ripe.net/live/main/ Ciao, Massimo

2 1

Summary of the discussions about previous proposals
by Robert Kisteleki 13 May '24

13 May '24

[This is the same message I sent to the RIPE Atlas ML. The majority of the content relates to RIPE Atlas.] Dear all, In response to community feedback, as well as to the observed behaviour of RIPE Atlas, earlier we put out some proposals about some aspects of future behaviour of RIPE Atlas. We’d like to summarise what we’ve heard so far (written responses as well as verbal discussions we participated in), and the path we plan to take based on these. Probe farming: There were many voices who agreed with some form of limiting this behaviour. We were also asked to reach out to users who are using many probes this way now. We did and the short summary is that most (but not all) answers give reasonable justification. Conclusion: we’ll add the relatively simple proposed rules (in short: limit the number of software probes from the same IP/prefix). Later on we can consider softer approaches, e.g. reducing the number of credits given to hosts with excess probes or using probe similarity metrics. Measurement aggregators: We proposed to embrace this existing phenomenon, ask these users to in the future give the system an indication about the distinct clients they serve, and perhaps step up as sponsors in such cases. We received many responses to this proposal. For the most part, current aggregators who responded stated that they have no significant issues with providing such client information – in an anonymised way of course. At the same time some of them stated that adding a “mandatory sponsorship” would discourage them from using RIPE Atlas in the future. Some argued that by having enough credits to do so, they were in fact contributing positively to the network already, and in fact some of them are or were sponsors. Conclusion: we’ll add the features needed to implement such aggregations, and work on incentives for these users to become RIPE Atlas sponsors. We’ll also add the need for proper attribution to the service, similar to what the commercial use policy describes. We may also look at additional requirements to ensure proper funding for our membership services. Data retention principles: This proposal was a high level one and we received limited feedback. One discussion raised how “financially sustainable” is defined; perhaps the best summary of this is the recent RIPE Labs article published by our CTO Felipe: https://labs.ripe.net/author/felipe_victolla_silveira/reducing-the-ripe-ncc… Conclusion: we are implementing our data storage and access features along the principles we laid out. For transparency, we’ll also include summaries of proposals we put out earlier (see: https://labs.ripe.net/author/kistel/five-proposals-for-a-better-ripe-atlas/) for which we haven’t provided a written conclusion. Remove per-hop “late” packets from traceroute [LATE-PACKETS]: we only heard support for this, therefore it’s in our plans now. Measure well-known CDNs [CDN-HTTP]: Multiple responses argued that by selecting a “short list” of CDNs that are included by default, there’s an implicit statement and/or bias in the system towards bigger providers, contributing to some aspects of centralisation. Others pointed out that this approach reflects the reality of generic users, since the majority of the content they consume is provided by said CDNs. In addition, there were some voices supporting this proposal because of the value it provides to (smaller) CDNs or because it incentivises probe hosts to join or to keep their probes connected. Based on these discussions we’ll not go ahead with a full set of CDN measurements; however we’ll try a smaller scale experiment to discover the potential benefits to all users. Generic HTTP measurements [GENERIC-HTTP]: the discussions centered around some reiterations of the previous arguments (i.e. the safety of both the probe host and the providers’ sides) and if/how the proposed opt-in activity of the probe host would help this. Given these arguments, and that only a few voices expressed their explicit support for this, we’ll put this activity on hold; we can revisit this if/when the community wishes so. Add support for STARTTLS measurements [STARTTLS]: there were lengthy discussions about how certain SMTP servers may react to such incoming measurements. The general agreement was that this measurement type can be useful, with the confirmation that these checks will explicitly stop after STARTTLS (i.e. they will not have the ability to even try initiating sending mails or such). Remove support for non-public measurements [ONLY-PUBLIC]: the discussion raised both arguments for and against changing the system’s behaviour. Some people also raised the possibility of making private measurements more costly (in terms of credits). We’d also like to note the reference to the data retention principles (private measurement results are not available to all users, therefore we’ll only store them for a limited time). All in all, for the time being we do not plan to make behavioural changes about this feature. Regards, Robert Kisteleki RIPE NCC

1 0

MAT WG agenda @ RIPE 88
by Stephen Strowes 10 May '24

10 May '24

Hi all, RIPE 88 is on the horizon! The MAT working group session will take place on Tuesday 21 May at 16:00 CEST. If you are not already registered, information on how to attend the meeting is available here: https://ripe88.ripe.net/attend/register/ Our current agenda is: - 16:00: Welcome (WG chairs) - 16:05: 20 Years of Inferring Inter-domain Routing Policies (Savvas Kastanaki) - 16:25: WHOIS Right? An analysis of WHOIS and RDAP consistency (Simon Fernandez) - 16:40: Analysis of Usage Patterns in RIPE Atlas Measurements (Pavlos Sermpezis) - 16:55: WetLinks and Starlink on the Road: Exploring the Stationary and Mobile Performance of Starlink (Eric Lanfer) - 17:15: NCC Update (Robert Kisteleki) - 17:30 Session closes This agenda ought to be reflected on the meeting plan soon: https://ripe88.ripe.net/programme/meeting-plan/mat-wg/ Hope to see you there, either online or in-person! Cheers, -S, as WG co-chair

1 0

Call for presentations for MAT WG at RIPE 88
by Stephen Strowes 08 Apr '24

08 Apr '24

Hi all, RIPE88 is coming up: the meeting will take place 20 -- 24 May. Once again, we are seeking your presentations for the next MAT WG session, scheduled on Tuesday, 21 May! Presentations for the WG session are preferably 10-15min long. Please include in your proposal: * a title * a draft copy of your proposed presentation; an outline is okay! * a paragraph describing the topic and why it is of interest to the community. Interesting topics include (but are not limited to): recent measurement research which has an operational impact; recent operational work that may open avenues to research; projects, tools, or datasets that support either operations or research. Please submit your presentation proposal by **Monday 29 April** by emailing us at mat-wg-chairs at ripe.net. We will make our selections and post the agenda soon after. RIPE meetings are fully hybrid with sessions facilitated through meetecho. We encourage presentations from anywhere; to help us plan, we'd appreciate it if you can indicate whether you are likely to be online or on-site. Please ask if you have any questions regarding the setup on either side. Thanks! Nina, Massimo, Stephen, as WG co-chairs

1 1

RIS beacon ROA configuration error
by Martin Pels (RIPE NCC) 04 Mar '24

04 Mar '24

Dear all, As documented on [1], we operate several RIS Routing Beacons for RPKI. Due to a configuration error, two of the beacons were advertised with an incorrect RPKI status for several days. This concerns the "RPKI Unknown" beacons, which are the following prefixes: * 2001:7fb:ff03::/48 * 84.205.83.0/24 For both these prefixes, a ROA was created at 2024-02-27 7:55 UTC, turning these announcements into RPKI Valid. Upon receiving a report about this incorrect change we have removed the ROA again. This was done at 2024-03-04 11:31 UTC. Kind regards, Martin Pels RIPE NCC [1] https://ris.ripe.net/docs/routing-beacons/#special-beaconing-setups

1 0

Fast-paced RIS beacon changed schedule unexpectedly
by Ben Cartwright-Cox 07 Feb '24

07 Feb '24

Hey all, Did anyone know why the "Fast-paced beacons" that RIS provides has swapped schedules from Announcements at XX:10, XX:30, XX:50 Withdrawals at XX:00, XX:20, XX:40 to Announcements at XX:00, XX:20, XX:40 Withdrawals at XX:10, XX:30, XX:50 ? Sadly the internet archive does not archive https://ris.ripe.net/docs/routing-beacons/ page so I have no web page proof. However I did copy and paste the schedule into a code comment and as far as I can tell, the schedule "inverted" on 2024-02-01 at 09:10 UTC. Any ideas? Am I finally losing my mind? I see that there were changes scheduled to be made on February 1st 2024 ( https://www.ripe.net/ripe/mail/archives/ris-users/2023-December/000755.html ), But they did not mention changing the schedules of the fast paced beacons! Thanks Ben

2 1

RIPE87 meeting minutes
by Stephen Strowes 06 Feb '24

06 Feb '24

Hi all, Minutes from the WG session at RIPE 87 are now online at: https://www.ripe.net/community/wg/active-wg/mat/minutes/mat-working-group-m… Cheers, -S, as co-chair

1 0

RIS anchor/beacon changes
by Martin Pels (RIPE NCC) 02 Feb '24

02 Feb '24

Dear all, In the coming months we will be making several changes in the prefix advertisements by RIS Route Collectors. These changes were discussed previously on RIPE Labs[0]. January 2nd 2024 ---------------- The following BGP announcements will be disabled: * IPv4 anchor+beacon announcements on RRC04, RRC07, RRC10, RRC13, RRC14, RRC15, RRC16, RRC21 and RRC22 * IPv4 anycast failover simulation beacon (84.205.72.0/24) on RRC03 and RRC14 All IPv6 anchor+beacon announcements will remain. February 1st 2024 ----------------- We will be enabling the following new prefix advertisements: * A single anycast IPv4 and IPv6 anchor+beacon pair per RIR region, advertised from each RRC in this region. * An anycast IPv4 /25 and /28 anchor, advertised from one RRC per RIR region * An anycast IPv6 /56 and /64 anchor, advertised from one RRC per RIR region To accommodate these changes we will also modify the encoding used in the BGP AGGREGATOR attribute. For full details and an overview of all anchor and beacon prefixes, please refer to our updated documentation[1]. Kind regards, Martin Pels RIPE NCC [0] https://labs.ripe.net/author/emileaben/ris-beaconing-shining-a-light-on-bgp… [1] https://ris.ripe.net/docs/routing-beacons

1 1

Changes to the rpki archives on ftp.ripe.net
by Ties de Kock 26 Jan '24

26 Jan '24

Dear colleagues, As you may know, the RIPE NCC publishes daily RPKI dumps for all trust anchors on ftp.ripe.net/rpki. Today, we have made some changes to this longitudinal dataset. We have added: * The compressed JSON output of a validator (output.json.xz). We added this because it contains validated ASPA and BGPsec payloads. * A compressed version of the CSV file of ROAs (roas.csv.xz) * A xz compressed archive of the validated and unvalidated objects (repo.tar.xz) We made this change because it significantly reduces the size of the files. At this point, we do not plan to re-compress historic files. However, to realise the savings, we must stop producing the larger version at some point and clean up the "duplicate" files from the transition period. For now, we will create the old (roas.csv, repo.tar.gz) and new (roas.csv.xz, repo.tar.xz) side by side during a transition period. We plan to stop creating the old format after a transition period of at least a month, taking into account the feedback we receive. We will inform you when this happens. Ties de Kock Specialist Software Engineer RIPE NCC

1 1

Fwd: [SIG-NOC] Network Performance and Monitoring Workshop - 14 February 2024
by Vesna Manojlovic 24 Jan '24

24 Jan '24

Dear all, Kindly see the announcement below for the upcoming event on 14 February. Network Performance and Monitoring Workshop This Workshop is organised by the Monitoring task in the Network Development work package (WP6) of the GN5-1 project. Continuing from previous successful workshops, this new edition will bring together network operators, researchers and other members of the GÉANT and NREN community interested in network performance and monitoring, to present and discuss the future development of network performance and monitoring tools and platforms. Registrations and agenda: https://events.geant.org/event/1588/ For more information, please contact: network-performance-monitoring(a)lists.geant.org

2 1

Possible new RIS Beacon? (Alternating visible pair)
by Ben Cartwright-Cox 22 Jan '24

22 Jan '24

Hey everybody, On my seemingly never ending task to find all "stuck" BGP sessions, I feel like there is an interesting thing that could be done for the RIPE RIS Beacons, and that is a pair of prefixes that alternate between being visible and invisible (IE: unannounced). I looked at the current estate of beacon prefixes and couldn't find anything that would fit this use case already. This would be useful to be able to tell if a prefix or session has got a stuck prefix at that current moment in time, by being able to check the time and see if the presence of a prefix shouldn't be visible. In the interests of full disclosure this would be very useful for bgp.tools to instantly “spot check” BGP feeds to see if they have stuck prefixes or not. What does everybody think? This should "only" require two /24s and two /48s, and I think this would also help researchers see the severity of stuck sessions in a much more measurable way than having to wait for hours for the beacons to go on or off! (Apologies if this is not the right place for this kind of discussion, but there were previous mails about the beacons here, so I figured here was a good place) Cheers Ben

2 2

Open positions at HPI, Potsdam
by Vaibhav Bajpai 05 Jan '24

05 Jan '24

Dear colleagues, I am looking for Postdocs and PhD students to bootstrap a research group on data-intensive Internet computing at the Hasso Plattner Institute. These are full-time positions in the Berlin metropolitan area. We do systems research, and publish papers at the intersection of Internet measurements, security and privacy. The work place is in Potsdam, Germany. Interested candidates, please feel welcome to send me your application directly via E-mail (vaibhav.bajpai(a)hpi.de) Kind regards, -- Vaibhav ------------------------ Prof. Dr. Vaibhav Bajpai, www.vaibhavbajpai.com

1 0

RIPE NCC measurement data retention
by Robert Kisteleki 21 Dec '23

21 Dec '23

Dear all, We've just published a proposal about establishing principles around how the RIPE NCC retains and publishes Internet measurement data, specifically in RIS and RIPE Atlas: https://labs.ripe.net/author/kistel/ripe-ncc-measurement-data-retention-pri… We would be very happy to see discussions about this here on the mailing list, on the RIPE NCC Forum, or live at RIPE87. Regards, Robert Kisteleki RIPE NCC

8 7

RIPE Atlas, RIPEstat and RIS Quarterly Planning Q1 2024
by Adonis Stergiopoulos 20 Dec '23

20 Dec '23

Dear colleagues, The quarterly plans for RIPE Atlas, RIPEstat and RIS for Q1 2024 can now be found at: https://www.ripe.net/support/documentation/quarterly-planning <https://www.ripe.net/support/documentation/quarterly-planning> By sharing these plans with you, we want to inform you of the ongoing developments in the tools we operate and get your feedback on other work items you would like us to focus on. If you have any input on our plans, please let us know. Kind regards, Adonis Stergiopoulos Senior Marketing & Communications Officer RIPE NCC

1 0

The role of aggregators in RIPE Atlas
by Robert Kisteleki 11 Dec '23

11 Dec '23

Dear all, We've just published a proposal about recognising the role of "aggregators" in RIPE Atlas: https://labs.ripe.net/author/kistel/the-role-of-aggregators-in-ripe-atlas/ We would be very happy to see discussions about this here on the mailing list, on the RIPE NCC Forum, or live at RIPE87. Regards, Robert Kisteleki RIPE NCC

3 2

RIPE Labs post: Does The Internet Route Around Damage?
by Emile Aben 30 Nov '23

30 Nov '23

Dear colleagues, We analysed last week's AMS-IX outage from the perspective of RIPE Atlas, to shed some light on the question if the Internet routes around damage. Our analysis is here: https://labs.ripe.net/author/emileaben/does-the-internet-route-around-damag… Kind regards, Emile Aben RIPE NCC

3 4

2024 Internet Society Pulse Research Fellowship
by Amreesh Phokeer 29 Nov '23

29 Nov '23

Hi all, Are you interested in Internet measurement research and have a project or tool in mind that contributes to upholding an open, globally connected, secure, and trustworthy Internet? The call for applications is now open. More details here: https://pulse.internetsociety.org/fellowship If you want to learn more from 2023 Pulse fellows, join next week’s 2023 Pulse Research Fellowship Review webinar: https://isoc.zoom.us/webinar/register/WN_JL4H5rBIS82PjUVhIFhC5w Regards, -- Amreesh Phokeer

2 3

MAT Agenda - RIPE87
by Massimo Candela 28 Nov '23

28 Nov '23

Dear all, The MAT agenda for RIPE87 (Rome) is out: https://ripe87.ripe.net/programme/meeting-plan/mat-wg/ The session will take place in the main room on Tuesday, November 28 at 16:00 (UTC+1). We'll provide the streaming link. The current agenda is: * Measuring Internet Censorship with OONI (Arturo Filastò) * Where the !?*! Are the Packets Going? (Luca Sani) * Ah, This Is How Packets Get Here! Measuring Reverse Paths on the Public Internet (Valentin Heinrich) * ECN with QUIC: Challenges in the Wild? (Sander Constantin) * RIPE NCC Tools Update (Robert Kisteleki) See you in Rome! Ciao, Massimo (on behalf of the MAT chairs)

1 1

Two years of selective peering with RIS
by Michela Galante 23 Nov '23

23 Nov '23

Dear colleagues, We published an article on RIPE Labs where we talk about our RIS peering strategy of the last two years, what we've achieved so far, and why we've temporarily removed the peering form from our website: https://labs.ripe.net/author/emileaben/two-years-of-selective-peering-with-… We would love to hear your thoughts about it either here on this mailing list, in the Forum or live at RIPE 87. Best regards, Michela Galante RIPE NCC

1 0

PEARG: Guidelines for Performing Safe Measurement on the Internet
by Stephen Strowes 16 Nov '23

16 Nov '23

Hi, There is an open request on the IRTF's PEARG list, seeking feedback on a draft document, "Guidelines for Performing Safe Measurement on the Internet". The MAT WG has expertise and probably feedback to share. The request with appropriate pointers is here: https://mailarchive.ietf.org/arch/msg/pearg/-qGRRbBAZ2YAytwt4lpxVcQ7OZE/ Feedback on the draft is welcome either on their RG discuss list, or by filing issues directly against the git repo. Cheers, S.

1 0

Unauthenticated user access to RIPE Atlas
by Ben Cartwright-Cox 03 Nov '23

03 Nov '23

Hello everybody! I was wondering around what are the rules and views on “open user access” to RIPE Atlas ( as in non-authenticated users being able to make RIPE atlas measurements) I ask because as of this morning I noticed that hurricane electric’s bgp.he.net tool is now allowing users to make right atlas measurements without any authentication to RIPE Atlas, this was surprising to me as when I asked a NCC staff member at the last meeting in Berlin about doing something similar to this I was explicitly told that this would not be desired. I cannot remember who told me this ( and I don't have an easy way of finding out again ) but assuming this is allowed I will happily copy this for bgp.tools But I'd like to check with Atlas people before doing such a thing.

2 5

Call for presentations for MAT WG at RIPE87
by Stephen Strowes 23 Oct '23

23 Oct '23

Hi all, RIPE87 is coming up: the meeting will take place 27 November -- 1 December. Once again, we are seeking your presentations for the next MAT WG session, scheduled on Tuesday, 28 November! Presentations for the WG session are preferably 10-15min long. Please include in your proposal: * a title * a draft copy of your proposed presentation, even if just an outline * a paragraph describing the topic, and why the topic is of interest for the community. Interesting topics include (but are not limited to): recent measurement research which has an operational impact; recent operational work that may open avenues to research; projects, tools, or datasets that support either operations or research. Please submit your presentation proposal by **Friday, 27 October** by emailing us at mat-wg-chairs at ripe.net. We will make our selections and post the agenda soon after. RIPE meetings are fully hybrid with sessions facilitated through meetecho; we encourage presentations from anywhere. For our planning, we'd appreciate it if you can indicate whether you are likely to be online or on-site. Please ask if you have any questions regarding the setup on either side. Thanks! Nina, Massimo, Stephen, as WG co-chairs

1 1

new discussion list for discussing network neutrality/title ii issues rationally
by Dave Taht 11 Oct '23

11 Oct '23

With the return of the NN discussion and regulation in the USA as of Oct 19th... https://www.fcc.gov/document/fcc-chairwoman-rosenworcels-net-neutrality-rem… and especially with my lack of knowledge and understanding of pending EU regulation, I decided to start a good ole fashioned mailing list to try and sort it all out, which is up to nearly 200 members now. Sign up here: https://lists.bufferbloat.net/listinfo/nnagain I am especially interested in finding new blood of all sorts (engineers, lawyers, scientists, foss folk, and infrastructure folk) willing to discuss possible brighter futures for the internet (with us old farts via this archaic method. I considered trying mastodon but it was too complicated). New metrics for videoconferencing, as well as lower layer metrics like MTTR an MTBF are on my mind, as is finding ways to improve QoE for everyone, and de-crapification of the upper layers of the stack, as well as of the gear we buy. There is a separate NPRM going on for a new FCC CyberSecurity label, which I would like to see more teeth pushed into, honestly. My hope is, one day, we can provide good feedback into various overwhelmed government processes, as we did here, 7+ years ago. http://www.taht.net/~d/fcc_saner_software_practices.pdf PS - is anyone here participating in the renewed cybergeography project? -- Oct 30: https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html Dave Täht CSO, LibreQos

1 0

RIPE Atlas, RIPEstat and RIS Quarterly Planning Q4 2023
by Robert Kisteleki 04 Oct '23

04 Oct '23

Dear colleagues, The quarterly plans for RIPE Atlas, RIPEstat and RIS can now be found at: https://www.ripe.net/support/documentation/quarterly-planning We hope that by providing these plans, we can better inform the community of the ongoing developments in the tools we operate and get feedback on our work. If you have any input on our plans or want to let us know what you would like to see us work on, please let us know. Kind regards, Robert Kisteleki Principal Engineer RIPE NCC

1 0

Reminder: RIPE NCC Open House Event on Community Projects Fund Updates - 27 September, 10:00 - 11:30 UTC
by Alastair Strachan 25 Sep '23

25 Sep '23

Dear colleagues, I hope all is well with you. Just a quick note to remind you about the RIPE NCC Open House event happening on Wednesday, 27th September, from 10:00 to 11:30 UTC. It's an excellent chance to hear firsthand updates from the recipients of last year’s Community Projects Fund and to engage in meaningful dialogue with project leaders. The agenda includes presentations where each project will provide an overview of their journey and accomplishments so far. Following the presentations, there will be a Q&A segment for any questions you may have. The projects and speakers lined up for the event are: 1. iNGO European Media Platform Project: Internet Identifiers in Time of War Speaker: Oksana Prykhodko 2. Aristotle University of Thessaloniki Project: AI4NetMon 2.0 Speaker: Pavlos Sermpezis 3. deSEC e.V. Project: deSEC: Secure DNSSEC Hosting Speaker: Peter Thomassen For more details and to register for the event, please visit the following link: https://www.ripe.net/participate/meetings/open-house/ripe-ncc-open-house-se… We hope to see you there! Kind Regards, Alastair Strachan RIPE NCC

1 0

Re: [mat-wg] mat-wg Digest, Vol 134, Issue 2
by dana yazdani 22 Sep '23

22 Sep '23

hi thank you دریافت Outlook برای Android<https://aka.ms/AAb9ysg> ________________________________ From: mat-wg <mat-wg-bounces(a)ripe.net> on behalf of mat-wg-request(a)ripe.net <mat-wg-request(a)ripe.net> Sent: Friday, September 22, 2023 1:30:02 PM To: mat-wg(a)ripe.net <mat-wg(a)ripe.net> Subject: mat-wg Digest, Vol 134, Issue 2 Send mat-wg mailing list submissions to mat-wg(a)ripe.net To subscribe or unsubscribe via the World Wide Web, visit https://lists.ripe.net/mailman/listinfo/mat-wg or, 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. Call for presentations for MAT WG at RIPE87 (Stephen Strowes) ---------------------------------------------------------------------- Message: 1 Date: Thu, 21 Sep 2023 20:14:51 -0400 From: Stephen Strowes <sds(a)fastly.com> To: MAT WG <mat-wg(a)ripe.net> Subject: [mat-wg] Call for presentations for MAT WG at RIPE87 Message-ID: <CAN1UeUCdjxO1fASRc+OeaCx2yPHNsGk7GL_p2dzgytc3h_TcZA(a)mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi all, RIPE87 is coming up: the meeting will take place 27 November -- 1 December. Once again, we are seeking your presentations for the next MAT WG session, scheduled on Tuesday, 28 November! Presentations for the WG session are preferably 10-15min long. Please include in your proposal: * a title * a draft copy of your proposed presentation, even if just an outline * a paragraph describing the topic, and why the topic is of interest for the community. Interesting topics include (but are not limited to): recent measurement research which has an operational impact; recent operational work that may open avenues to research; projects, tools, or datasets that support either operations or research. Please submit your presentation proposal by **Friday, 27 October** by emailing us at mat-wg-chairs at ripe.net. We will make our selections and post the agenda soon after. RIPE meetings are fully hybrid with sessions facilitated through meetecho; we encourage presentations from anywhere. For our planning, we'd appreciate it if you can indicate whether you are likely to be online or on-site. Please ask if you have any questions regarding the setup on either side. Thanks! Nina, Massimo, Stephen, as WG co-chairs -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/mat-wg/attachments/20230921/29dd4…> ------------------------------ Subject: Digest Footer -- To unsubscribe from this mailing list, get a password reminder, or change your subscription options, please visit: https://lists.ripe.net/mailman/listinfo/mat-wg ------------------------------ End of mat-wg Digest, Vol 134, Issue 2 **************************************

1 0

Invitation: RIPE NCC Open House Series on Community Projects Fund Updates - September 2023
by Alastair Strachan 07 Sep '23

07 Sep '23

Dear colleagues, For over 30 years, the RIPE NCC has been an essential part of the Internet technical community. Seven years ago, we took our commitment a step further by introducing the Community Projects Fund. This initiative was designed to tackle the funding challenges faced by many noteworthy projects in our community. We're thrilled to bring you updates on the incredible progress these initiatives have made. We warmly invite you to attend our upcoming RIPE NCC Open House Series, focusing on the advancements made by last year’s Community Projects Fund recipients. In each session, the project teams will offer presentations summarising their journey and current status, followed by a Q&A session during which you can engage directly with them. Wednesday, 13 September 2023, 13:30 - 14:30 UTC 1. Elevating Demand-side Cybersecurity Through Business Procurement - Wout de Natris 2. DNS Research Federation - Internet Standards Observatory - Carolina Caeiro Thursday, 21 September 2023, 10:00 - 11:30 UTC 1. Foundation for Research and Technology - Hellas (FORTH) - ARTEMIS Lite - George Nomikos 2. Grenoble Alps University - fpdns2: DNS Fingerprinting Tool - Maciej Korczyński, Ph.D. 3. University of Aberdeen - Can We Extend IPv6? - A Measurement Project - Ana Custura Wednesday, 27 September 2023, 10:00 - 11:30 UTC 1. iNGO European Media Platform - Internet Identifiers in Time of War - Oksana Prykhodko 2. Aristotle University of Thessaloniki - AI4NetMon 2.0 - Pavlos Sermpezis 3. deSEC e.V. - deSEC: Secure DNSSEC Hosting - Peter Thomassen For more information on these upcoming events and how to register, please see here: https://www.ripe.net/participate/meetings/open-house/ripe-ncc-open-house-se… Kind Regards Alastair Strachan RIPE NCC

1 0

lacnic40 IMWG - call for presentations
by Massimo Candela 29 Aug '23

29 Aug '23

Dear MAT friends, During LACNIC 40 (Fortaleza, Brazil) [1], there will be a session of the Internet Measurements Working Group (IMWG) on Friday 6 October 2023. The IMWG is a new working group with similar goals of MAT but focuses on creating bridges among academia, researchers, and network operators in the LACNIC region. The mailing list of the IMWG is imwg(a)listas.nog.lat Since this year the LACNIC and RIPE events will be more than a month apart, I'm asking here help in creating the agenda for IMWG. The IMWG is looking for presentations on Internet measurements, network data collection, data analysis and tools. Please, submit your presentation proposal by September 22 by sending an email at imwg-owner(a)listas.nog.lat We prefer talks of 15min. Include in your email a title, a draft of the presentation, a paragraph describing what you will talk about and why the topic is of interest for the community, and if you are planning to present in person or remotely. Feel free to share this message on other channels. Thanks! Ciao, Massimo [1] https://lacnic40.lacnic.net/

1 0

Hackathon on Network Interference using Open Data at IMC 2023 in Montreal (October 23, 2023)
by Amreesh Phokeer 28 Aug '23

28 Aug '23

Dear all, The Internet Society, M-Lab, OONI, and Censored Planet invite you to join the IMC Hackathon on Network Interference using Open Data in Montreal on 23 October 2023, the day before the IMC Conference takes place (24-26 October). We are looking for participants interested in exploring, analyzing and visualizing network measurement open data from different sources to extract meaningful information about network disruption events. We invite people from various backgrounds (e.g. economists or social scientists), including those who might not work directly with network disruptions and still want to contribute, to apply. Capacity: Limited to 35 participants. Venue: Google’s Montreal Office: 425 Av. Viger O, Montréal, QC H2Z 1W5, Canada For more details and registration: https://conferences.sigcomm.org/imc/2023/hackaton/ Best regards, -- Amreesh Phokeer On behalf of the organizing committee

1 0

RIS beacons
by Emile Aben 20 Jul '23

20 Jul '23

Dear colleagues, Following on from discussion during the MAT WG session at RIPE 86, I wrote up a RIPE Labs article looking at why RIS beaconing is useful and how we can improve the existing setup to do more: https://labs.ripe.net/author/emileaben/ris-beaconing-shining-a-light-on-bgp… kind regards, Emile Aben RIPE NCC

1 0