1. YIN-YANG ninjaX tracerouting
Edward Zambrano, Spotify
Orlin Tenchev, Sofia Connect
Sascha Bleidner, DE-CIX
Rickard Östman, Spotify

2. The YIN-YANG Team ?
And the prize?

3. Motivation How to troubleshoot your two way connection?
Traceroutes ONE WAY is easy
You can see how you can reach a certain destination
But what about the way back?
The Internet routing is asymmetric
Most traffic is two way (TCP)
How to troubleshoot your two way connection?
You need control over the destination!

4. Input source and destination AS
The Hack
Input source and destination AS
find a probe in each AS
RIPE Atlas
perform traceroute
S to D
perform traceroute
D to S
Clarify that we have AS numbers and no IP adresses required
PeeringDB
resolve hops
RIPEStat
draw the paths

5. First Steps

6. PROXAD (FR) -> Bahnhof (SE)

7. How is my neighbour doing?
How is a neighbour in terms of geo location connected to the same destination?
What does his path looks like?
Does it have a faster path?
Is he peering somewhere I could do as well?

8. ATEA (DK) -> SADECEHOSTING-COM (TR)

9. PROXAD (FR) -> Bahnhof (SE)

10. Roadmap IPv6 support support for probeless networks useful CLI output
support even more sources and destination at once
convince people to answer to ICMP packets for traceroutes!
...

11. The WINNERS ?
It was so much fun!

12. Box of stroopwaffles, bugfixes and even
The PRIZE
Box of stroopwaffles, bugfixes and even
THIS PRESENTATION

13. THANK YOU
Check out the project: