Feb 8 – 9, 2024 Workshop
Embassy Suites Charlotte Uptown
US/Eastern timezone

Using Multiple Authoritative Vendors Does Not Work Like You Thought

Feb 8, 2024, 10:15 AM
Salon A/B (Embassy Suites Charlotte Uptown)

Salon A/B

Embassy Suites Charlotte Uptown

401 East Martin Luther King Jr Blvd Charlotte NC 28202 United States
In-Person Standard Presentation Main Session OARC 42 Day 1


Shane Kerr (NS1, an IBM Company)


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.

Talk duration

Primary author

Shane Kerr (NS1, an IBM Company)

Presentation materials