Anycast 101

Fri Dec 17 11:25:15 UTC 2004

On Fri, Dec 17, 2004 at 12:31:37AM +0100,
 Iljitsch van Beijnum <iljitsch at muada.com> wrote 
 a message of 68 lines which said:

> and then sees an anycast instance for all root servers over
> peering. If then something bad happens to the peering connection
...
> but even if 5 or 8 or 12 addresses become unreachable the timeouts
> get bad enough for users to notice.

We can turn this into a Good Practice: do not put an instance of every
root name server on any given exchange point. 

Actually, this is only a theoretical issue, the current maximum seems
to be only three (at the LINX in London).