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Date: Wed, 23 Sep 2015 14:23:47 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Benjamin Cronce <bcronce@gmail.com>
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Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] bloat at gigE
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On Wed, 23 Sep 2015, Benjamin Cronce wrote:

> The upload wasn't even saturated. Probably why upload bloat was very low.
> Large bloat on the download just shows you the server really can push more
> than 1Gb. 200ms bloat with 913Mb down is about 20MiB of buffer. That's
> insane! That's about 20x more buffer than my entire 24 port 1Gb Procurve
> managed switch. What kind of network equipment has that much buffer?

That's typically one distinction between L3 switch and a "router". The L3 
switch typically has on-die memory that can be as low as 128KB or up to a 
few megabytes of memory.

Then you have the real "service edge" routers with 128.000 queues that's 
used to aggregate tens of thousands of customers, where a linecard can 
have many gigabytes of packet buffer memory.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se