Re: [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility workaround

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On Tuesday, 12. August 2008 10:18:22 David Miller wrote:
> From: Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
> Date: Tue, 12 Aug 2008 09:46:17 +0200
>
> > David, I agree with you, though I'm not sure about the end user
> > experience:
>
> We had the same situation with ECN and window scaling, and my proposal
> is the same as how we handled those situations involving broken
> middleware boxes.

Yes, that is true. IMHO there's a slight difference with FRTO trouble
compared to ECN/window scaling issues:

ECN trouble -> No access at all
Broken window scaling -> Large transfers don't work
MTU issues -> No access at all / large transfers don't work

FRTO problems -> Hard to spot as they only happen when packet loss occurs.
Though I guess Ilpo knows best if there's an "easy" way to detect this or not.

Thomas
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