Re: What happened to CONFIG_TCP_NAGLE_OFF?

From: Herbert Xu
Date: Fri Dec 01 2006 - 22:32:11 EST


Phillip Susi <psusi@xxxxxxxxxx> wrote:
>
> UDP is highly appropriate because the congestion controls and other
> features of TCP are not required for this type of data, and in fact,
> tend to muck things up. That is why the application needs to implement
> its own congestion, sequencing, retransmit and connect/disconnect
> controls; because the way TCP handles them is not good for this
> application.

Congestion control is always appropriate in a shared network. Please
note that congestion control does not conflict with the objectives of
UDP. For UDP, congestion control can simply mean dropping packets at
the source. DCCP is a good replacement for UDP that has congestion
control.

In general it's much better to much better to drop packets at the
source rather than half-way through.

Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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