Speaker
Description
Our DNS operators use IP Anycast to make .nl available throughout the world with improved resilience and faster response times. But which points of presence do they choose to optimize the latency of their anycast deployment?
Oftentimes, operators manually test and tweak anycast site selections over many iterations. In this blog we describe Autocast: a data-driven heuristic method to approximate the optimal selection of any number of anycast sites. Novel about our method is that we only use IP unicast measurement data. With Autocast, we can predict the median latency of resolvers to a proposed anycast deployment with millisecond precision, without having to do anycast BGP announcements.
We plan on applying this method together with our operations team in their efforts of moving .nl's anycasted authoritative nameservers to a new infrastructure provider later this year.
Summary
Using active measurements to approximate an optimal anycast configuration.
| Talk duration | 20 Minutes (+5 for Q&A) |
|---|---|
| Other conferences? | I will also submit this to the CENTR R&D workshop which is held the week before OARC. In my experience, the audience is quite different (of course with some overlap, especially since it's this close). |
