netdev - Re: [PATCH RFC] Per route TCP options

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Message-ID: <4ADEC8E0.5020709@codefidence.com>
Date:	Wed, 21 Oct 2009 10:40:00 +0200
From:	Gilad Ben-Yossef <gilad@...efidence.com>
To:	Florian Westphal <fw@...len.de>
CC:	Rick Jones <rick.jones2@...com>, netdev@...r.kernel.org,
	ori@...sleep.com
Subject: Re: [PATCH RFC] Per route TCP options

Hi Florian,


Florian Westphal wrote:

> Gilad Ben-Yossef <gilad@...efidence.com> wrote:
>   
>> The point is that even then you are more then likely to wish to turn
>> off these options to specific destination and routes (that go over
>> said exotic link) and keep using them over others - e.g. timestamp
>> OK for local LAN, but for default route that goes over exotic TCP/IP
>> over carrier penguins turn it off.
>>     
>
> If you need a bandaid solution, its is possible to replace tcp
> options with NOOPs using netfilters TCPOPTSTRIP target.
>
> There is also an ECN target to work around ECN blackholes.
>   
Thanks for the tip. It is appreciated.

The band aid solution that Ori and company found was
simply to patch the local copy of the kernel used but being that sitting
on a bunch of "private" patches seems like a lose-lose situation (there
is a term you don't hear much when talking to MBAs :-) I'm now trying
to get it mainlined for them.


Thanks,
Gilad


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