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RE: [RAM] The mapping problem: rendezvous points?

Dave Thaler <dthaler@windows.microsoft.com> Tue, 08 May 2007 20:00 UTC

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Subject: RE: [RAM] The mapping problem: rendezvous points?
Date: Tue, 08 May 2007 13:00:06 -0700
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From: Dave Thaler <dthaler@windows.microsoft.com>
To: Tony Li <tli@cisco.com>, Dino Farinacci <dino@cisco.com>
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I disagree with Yakov for a completely different reason.

Pull scales, but is slow and can break apps as a result.
Push *everything* doesn't scale.
Push DOES scale as long as you don't push everything but only push
log(N)
stuff.

So I disagree with "push doesn't scale" unless you define "push" as
"push everything", in which case I disagree with "pick one".

-Dave

> -----Original Message-----
> From: Tony Li [mailto:tli@cisco.com]
> Sent: Tuesday, May 08, 2007 12:53 PM
> To: Dino Farinacci
> Cc: Dave Thaler; ram@iab.org
> Subject: Re: [RAM] The mapping problem: rendezvous points?
> 
> 
> On May 8, 2007, at 12:44 PM, Dino Farinacci wrote:
> 
> > For the last few months I have been sporting a new saying, inspired
> > by our esteemed Yakov:
> >
> > "Pull doesn't scale, Push doesn't scale, pick one".  ;-)
> 
> 
> Unfortunately, that's simply not true.  Pull does scale.  See DNS.
> Perhaps a more accurate saying would be:
> 
> 	"Push doesn't scale, pull is slow, pick one."
> 
> As always, it's a time/space tradeoff.
> 
> ;-)
> 
> Tony


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