The Curious Case of 128.0/16
The prefix 128.0/16 is filtered in Juniper devices up to and including JUNOS software version 11.1. We looked at three ways to get a rough estimate on how much filtering of 128.0/16 is going on on the Internet.
Emile Aben
Based in Amsterdam, NL
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Based in Amsterdam, NL
I'm a system architect/research coordinator at the RIPE NCC, where I work in the science group. I'm a chemist by training, but have been working since 1998 on Internet related things, as a sysadmin, security consultant, web developer and researcher. I am interested in technology changes (like IPv6 deployment), Internet measurement, data analysis, data visualisation, sustainability and security. I'd like to bring research and operations closer together, ie. do research that is operationally relevant. When I'm not working I like to make music (electric guitar, bass and drums), do sports (swimming, (inline) skating, bouldering, soccer), and try to be a good parent.
Website: https://www.caida.org/~emile
Internet Traffic During the 2012 Olympics
Following on from the European Championship earlier this year, we looked at changes in Internet traffic volume at Internet Exchange Points (IXPs) during the Olympics. This is a joint project with Euro-IX.
Top Ten Olympic Winners and Indicators of IPv6 Preparedness
Olympic fever didn't escape us here at the RIPE NCC!
RIPE NCC Active Measurements of World IPv6 Launch Dataset
As part of our Data Repository, the RIPE NCC has released a new dataset. This dataset contains DNS lookups (A+AAAA), ping/ping6, traceroute/traceroute6 and HTTP fetches (IPv4/IPv6) from 53 vantage points (TTM, CAIDA Ark and others) to 60 websites involved in World IPv6 Launch. The data covers the p…
Internet Traffic During Euro 2012 - Final Conclusions
This is the last in a series of articles in which we look at traffic statistics at Internet Exchange Points during the European Championship 2012. This time we looked at IXP traffic during the semi-finals and the final. In addition we also look back over the entire 5 weeks of matches and draw some …
Internet Traffic During Euro 2012 - Quarter-finals
This is the fourth in a series of articles in which we look at traffic statistics at Internet Exchange Points during the European Championship currently taking place. This time we looked at IXP traffic during the quarter-finals.
Internet Traffic During Euro 2012 - Group Stages
This is the third in a series of articles in which we look at traffic statistics at Internet Exchange Points during the European Championship currently taking place.
Internet Traffic After First Round of Euro 2012 Matches
In this article we show some interesting traffic graphs seen at IXPs during the first round of matches.
First Measurement Results from IPv6 Launch
Like last year during World IPv6 Day, the RIPE NCC has been doing various measurements during World IPv6 Launch on 6 June. We will publish the results in a series of articles on RIPE Labs.
Internet Traffic During the European Championship 2012
The European Football Championships is the third most watched sporting event in the world (after the World Cup and the Olympics). Euro 2012 takes place in Poland and Ukraine from 8 June, so we are teaming up with Euro-IX (The European Internet Exchange Point Association) to look at Internet Exchang…
Measuring IPv6 at the Network and the Customer Level
This article is looking at different measurements done at the network level and at the end user level and the results seen through these measurements.
Code for looking into AS Adjacency changes is available here: https://github.com/emileaben/as-neighbour-diff
Code on how to create graphs like Figure 1 ( ie. BGP view of how networks in a country interconnect ) is available here: https://github.com/InternetHealthReport/country-as-hegemony-viz
NOG Alliance is helping out network operators in Ukraine: https://nogalliance.org/our-task-forces/keep-ukraine-connected/
An effort related to keeping Urkanian servers/websites online by the Dutch Cloud Community: https://dutchcloudcommunity.nl/community/cloud4ukraine/
We got a request for the HHI scores for other countries. I've put these in a small repo on github together with the code that generated this. repo: https://github.com/emileaben/hhi-eyeballs HHI scores for 2022-03-07 are available here: https://raw.githubusercontent.com/emileaben/hhi-eyeballs/main/eyeball-hhi.2022-03-07.csv
“This is awesome work, thank you! Do you maybe have the script/notebooks/sources to reproduce this? This could be potential used for other countries.”
Hi Jenneth, The observable notebook we used for this is here: https://observablehq.com/@aguformoso/internet-outages-as-seen-by-ripe-atlas . It's a little rough around the edges, so it would be great if you could help improve it!
Thanks for your comment Maxime. I would love to see more analysis too, and the tool allows people to do this. Take for instance this thread on Twitter where Jason Livingood analyses the signals for the US: https://twitter.com/jlivingood/status/1245142990336688130 If others have analysis for specific countries they want to share it would be great to have them collected, for instance as comments to this RIPE Labs post!
“One may assume that, if some people delayed the changes, other people rushed in to adapt the networks to the increased load? Both behaviour may explain why the change rate is more or less the same?”
I think it would be interesting to dig into this data deeper indeed. I looked at splitting this out per country a bit, but could try figure out if there are trends in the sets of ASNs in this timeseries. Would you be willing to look at this? My colleague Vesna is doing a virtual hackathon around Internet and Corona ( https://labs.ripe.net/Members/becha/hackathons-in-the-time-of-corona ), I'd love it if we could collaborate around this. Let me or Vesna know, or hop on to the conf calls, Mon 2pm UTC ( 3pm Paris timezone :) )
“Ghost routes: https://www.sixxs.net/tools/grh/what/”
I've added a reference to the different names 'stuck routes' and 'ghost routes' for this phenomenon at the beginning of the post. Thanks for the pointer!
“Interested in repeating this analysis for 2018 world cup?”
Hi Dan, we have no plans of repeating this analysis this time. This type of signal is still there, see for instance https://twitter.com/search?q=%40ohohlfeld%20%23worldcup&src=typd for a couple of graphs that show the impact in various places.
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