[80671] in North American Network Operators' Group

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Re: Google DNS problems?!?

daemon@ATHENA.MIT.EDU (Andy Davidson)
Sun May 8 14:14:09 2005

In-Reply-To: <000b01c553e8$0886d7a0$ef84a2d4@riyadhub>
From: Andy Davidson <andy@nosignal.org>
Date: Sun, 8 May 2005 19:13:23 +0100
To: nanog@nanog.org
Errors-To: owner-nanog@merit.edu



On 8 May 2005, at 17:07, aljuhani wrote:

> Well I am not a DNS expert but why Google have the primary gmail MX  
> record
> without load balancing and all secondaries are sharing the same  
> priority
> level.

Huh ?

[...]
> 1888 (97%) messages were gated through Gmail's Primary mail server
> (gmail-smtp-in.l.google.com).

gmail-smtp-in.l.google.com is at least two machines, but much more  
likely to be at least two clusters of machines ... :

;; ANSWER SECTION:
gmail-smtp-in.l.google.com. 232 IN      A       64.233.185.27
gmail-smtp-in.l.google.com. 232 IN      A       64.233.185.114


.. load-balanced in some way.  One MX record doesn't mean one machine  
and no load-balancing by any means.




-- 
Regards, Andy Davidson
http://www.fotoserve.com/
Great quality photo prints, gifts and clothing from digital photos.


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