Re: [tcpm] Increasing the Initial Window - Notes

[" Ilpo Järvinen " <[e-mail]>]

On Wed, 10 Nov 2010, Joe Touch wrote:

> FWIW, I'd like to add another point to the discussion.
> 
> There has been recent concern with "buffer bloat", where home OS's, home
> routers, etc. all have either poorly optimized or incomplete implementations
> of fair queuing and socket buffering.
> 
> The basic problem can be seen as follows:
> 	- run a continuous ping anywhere
> 	- start a large upload
> 
> The latencies go from 10-100 milliseconds up t 0.5-5 seconds. This happens
> because the outbound buffers get stuffed with data.
> 
> Although a single connection can cause this to happen (it optimizes for rate,
> not throughput), we know how to handle that - use RED, fair queuing, etc.
> 
> I'm wondering if increasing the IW can defeat these corrective measures, and
> recreate the problem in a way that has no effective solution.
> 
> Has that been considered?

Please stay tuned, I intend to try to answer this question in my upcoming 
presentation. ...Or if curious enough, you can find my slides already 
among the tcpm material.

-- 
 i.