[AusNOG] Why not Symmetric ingress and egress?

[Chris Pollock]

Handled on the OS level by default, yes.  The application can do something
about it though, using the "setssockopt" function, which sets it on a
per-socket basis IIRC.

--
Chris Pollock
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On Sat, Jun 19, 2010 at 7:41 PM, Dmitri Kalintsev <dek735 at gmail.com> wrote:

> Craig,
>
> If I'm not mistaken, Windows isn't any different - tcp window is handled on
> the OS level, by the TCP stack. Application can't do anything about it.
>
> On Fri, Jun 18, 2010 at 4:56 PM, <craig at askings.com.au> wrote:
>
>> > On Fri, Jun 18, 2010 at 4:24 PM,  <craig at askings.com.au> wrote:
>> > Say again?  Don't you set these things in the TCP stack - i.e., the
>> > kernel - rather than the application?
>> >
>> > e.g., echo 1 > /proc/net/ipv4/tcp_window_scaling # linux
>>
>> It was a Windows desktop app. I could prove using scapy that their servers
>> honored window scaling when it was requested, but for some reason their
>> app never did.
>>
>
> -- D
>
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