[76601] in North American Network Operators' Group
Re: Anycast 101
daemon@ATHENA.MIT.EDU (Stephane Bortzmeyer)
Fri Dec 17 06:25:44 2004
Date: Fri, 17 Dec 2004 12:25:15 +0100
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: Iljitsch van Beijnum <iljitsch@muada.com>
Cc: NANOG list <nanog@nanog.org>
In-Reply-To: <A1713224-4FBA-11D9-B673-000A95CD987A@muada.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Fri, Dec 17, 2004 at 12:31:37AM +0100,
Iljitsch van Beijnum <iljitsch@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).
