We’ve had great success with using Anycast for campus DNS. Two IPv4 and two IPv6 addresses map to something like four or six recursive DNS servers. Since that

We’ve had great success with using Anycast for campus DNS. Two IPv4 and two IPv6 addresses map to something like four or six recursive DNS servers. Since that went live, I can’t think of a single instance of a server failure impacting DNS. We’ve had network outages, sure, but nothing specific to DNS or Anycast.