OARC 42 (Charlotte, NC, USA)

Using Multiple Authoritative Vendors Does Not Work Like You Thought

8 Feb 2024, 10:15

25m

Salon A/B (Embassy Suites Charlotte Uptown)

In-Person Standard Presentation Main Session OARC 42 Day 1

Speaker

Shane Kerr (NS1, an IBM Company)

Description

Since the 2016 DDoS against Dyn, common wisdom has been to use multiple authoritative vendors for your edge.

We wanted to quantify the behavior of resolvers when one authoritative edge failed completely. To our surprise, some resolvers never shifted away from the failing authoritative servers.

This presentation covers this experiment and gives a summary of the results.

Presentation materials

Using Multiple Authoritative Vendors Does Not Work Like You Thought