Stéphane BortzmeyerOct 5, 2017

#RIPEduca starts in less than one hour https://www.ripe.net/support/training/ripe-ncc-educa Today, RIPE Atlas probes!

One last coffee and I stand ready.

#Internet #measurements

RIPE NCC::Educa

RIPE NCC::Educa - RIPE Atlas

Show threadStéphane Bortzmeyer

Now, measuring service quality with RIPE Atlas at #RIPEduca. With Christian Kaufmann and Vesna Manojlovic.

Ping #ARCEP

Oct 5, 2017 at 12:14pmWeb
Show threadStéphane BortzmeyerOct 5, 2017

Christian Kaufmann (also president of the #FranceIX board) talking (prerecorded video, no interaction) at #RIPEduca.

Measuring the difference between performances with #IPv4 and #IPv6.

Show threadStéphane BortzmeyerOct 5, 2017
"I used the API because I didn't want to click 500 times on a GUI" #RIPEduca #CLI
Show threadStéphane BortzmeyerOct 5, 2017
Shorter AS count with IPv6. Not much difference in RTT with IPv4. #RIPEduca
Show threadSylvain LesageOct 5, 2017
@bortzmeyer what does it mean ?
Show threadStéphane BortzmeyerOct 6, 2017
@severo_bo Probably this is because everyone peers with Hurricane Electric, so everyone is close (AS-wise). #IPv6
Show threadStéphane BortzmeyerOct 5, 2017

Vesna Manojlovic now speaking for webmasters: "measuring reachability of your Web server" with RIPE Atlas #RIPEduca

Atlas was more focused on layer 3. But users requested L7 measurements.

Ping @Natouille, @aeris and the others at #ParisWeb

Show threadStéphane BortzmeyerOct 5, 2017

Limitations of HTTP measurements: only towards RIPE Anchors, partly for ethical reasons (forbidden Web sites) partly to avoid LOIC-type dDoS.

The trick: "TCP ping" with the traceroute measurements towards port 80, packet size zero.

#RIPEduca

Show threadStéphane BortzmeyerOct 5, 2017
Just implemented "TCP ping" in my atlas-traceroute tool https://github.com/RIPE-Atlas-Community/ripe-atlas-community-contrib/commit/f5c4c181273f338e48705fbf7731a05b22b4e344 https://atlas.ripe.net/measurements/9716802/ https://labs.ripe.net/Members/stephane_bortzmeyer/using-ripe-atlas-to-debug-network-connectivity-problems #RIPEduca
New options (TCP, size, port), to do "TCP Ping" · RIPE-Atlas-Community/ripe-atlas-community-contrib@f5c4c18

ripe-atlas-community-contrib - Repository for links towards tools written during hackathons, and a collection of contributions by the community of the RIPE Atlas visualizations, tools for analysing measurements data and other scripts