[104313] in North American Network Operators' Group
Re: [NANOG] OSPF minutia, and, technote publication venues
daemon@ATHENA.MIT.EDU (Nathan Ward)
Mon May 5 21:49:46 2008
From: Nathan Ward <nanog@daork.net>
To: nanog <nanog@merit.edu>
In-Reply-To: <77F4D75F-6FF0-466E-88A9-7607E95FF6BC@ca.afilias.info>
Date: Tue, 6 May 2008 13:49:39 +1200
Errors-To: nanog-bounces@nanog.org
On 6/05/2008, at 1:21 PM, Joe Abley wrote:
> On 5 May 2008, at 20:50, Nathan Ward wrote:
>
>> Perhaps what would make more sense here is Foundry (F5, etc.)
>> building
>> an anycast feature - anycast prefixes are withdrawn when a cluster
>> relying on that anycast prefix goes below a threshold.
>
> I'm not sure exactly what feature is required, here. f5s of my
> acquaintance are already very capable of making OSPF LSAs based on
> virtual servers' pools being non-empty. Do it on more than one f5 in
> the same area, and you're anycasting service availability with the
> current feature set.
Can they do it with BGP for Internet anycast?
> The general reason why people prefer to find alternative solutions
> rather than use dedicated load-balancers are that the dedicated load-
> balancers are hellishly more expensive than the $5 gigabit switch
> you probably already have in your garage.
The dedicated load balancers also talk BGP (well, ones I've played
with), so that does away with the need for a BGP speaking router.
--
Nathan Ward
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