[135224] in North American Network Operators' Group
Re: Software DNS hghi availability and load balancer solution
daemon@ATHENA.MIT.EDU (david raistrick)
Tue Jan 18 16:02:42 2011
Date: Tue, 18 Jan 2011 16:01:48 -0500 (EST)
From: david raistrick <drais@icantclick.org>
To: Jack Bates <jbates@brightok.net>
In-Reply-To: <4D35FE26.2050306@brightok.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tue, 18 Jan 2011, Jack Bates wrote:
>
> On 1/18/2011 1:42 PM, david raistrick wrote:
>> Normally, VRRP would be the way to go. But these days multicast isn't
>> supported everywhere (major example - Amazon EC2), leaving DNS...
>
> Many HA environments use both, and F5 is designed to do both, supporting DNS
> tricks (of which, you could possibly run host based monitoring and dynamic
> updates to accomplish), anycast routing, and vrrp-like DSR/NAT load
> balancing.
Agreed. But sometimes you can't do both. ;) Now if F5 would sell me an
"appliance" that runs their GSLB code I could run @ EC2. ;)
--
david raistrick http://www.netmeister.org/news/learn2quote.html
drais@icantclick.org http://www.expita.com/nomime.html
