[91157] in North American Network Operators' Group
Re: DNS Based Load Balancers
daemon@ATHENA.MIT.EDU (Henry Linneweh)
Thu Jul 6 12:18:10 2006
Date: Thu, 6 Jul 2006 09:17:26 -0700 (PDT)
From: Henry Linneweh <hrlinneweh@sbcglobal.net>
Reply-To: Henry Linneweh <hrlinneweh@sbcglobal.net>
To: Paul Vixie <vixie@vix.com>, nanog@merit.edu
In-Reply-To: <g3d5cjc3y0.fsf@sa.vix.com>
Errors-To: owner-nanog@merit.edu
There is a new player on the block that I see more and more
http://www.infoblox.com/company/
-Henry
----- Original Message ----
From: Paul Vixie <vixie@vix.com>
To: nanog@merit.edu
Sent: Wednesday, July 5, 2006 11:16:39 AM
Subject: Re: DNS Based Load Balancers
> As someone who has also deployed GSLB's with hardware applicances I would
> also like to know real world problems and issues people are running into
> "today" on modern GSLB implementations and not theoretical ones, as far
> as I can tell our GSLB deployment was very straight forward and works
> flawlessly.
since "works flawlessly" could just mean that you don't have any reported
problems with the technology -- no complaints from your users, no bugs logged
with your vendor, etc, i have two bracketing questions.
first, have you measured the improvement you got -- in terms of
min/max/avg/stddev of TTFB/TTLB (time to first byte / last byte)
with the appliances turned on vs. turned off?
second, have you measured the dns damage your gslb might cause or
contribute to, due to things not responding to unhandled QTYPES
(AAAA comes to mind) or use of abnormally low DNS TTL?
i'm not as much interested in whether a technology causes no problems for its
operator as whether its cost:benefit is worthwhile to the internet community.
--
Paul Vixie
