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Re: [DNSOP] Working Group Last Call for draft-ietf-dnsop-edns-chain-query

Paul Vixie <paul@redbarn.org> Wed, 11 November 2015 16:57 UTC

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From: Paul Vixie <paul@redbarn.org>
To: Tony Finch <dot@dotat.at>
Date: Wed, 11 Nov 2015 08:57:48 -0800
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Subject: Re: [DNSOP] Working Group Last Call for draft-ietf-dnsop-edns-chain-query
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On Wednesday, November 11, 2015 04:41:27 PM Tony Finch wrote:
> Paul Vixie <paul@redbarn.org> wrote:
> 
> > yes, that's flooding the channel. you're allowed one work-stream per
> > query, in order that timeouts and other loss are only felt as
> > backpressure by those apps who caused them.
> 
> Where is that specified?

it's written in tire tracks down my backside.

> > i have no objection to multiple parallel outstanding upstream queries
> > over a TCP stream.
> 
> Why is TCP special?

because it has per-flow congestion control.

-- 
P Vixie

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