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Date:      Thu, 16 Jun 2005 11:05:49 -0400 (EDT)
From:      jeffm@frob.org
To:        "Marcin Jessa" <lists@yazzy.org>
Cc:        freebsd-net@freebsd.org, current@freebsd.org
Subject:   Re: Looking for networking solution.
Message-ID:  <18857.130.76.32.16.1118934349.squirrel@www.frob.org>
In-Reply-To: <20050616144707.18bfa000.lists@yazzy.org>
References:  <20050615114556.6df96e8c.lists@yazzy.org> <1118925438.91936.2.camel@realtime.exit.com> <20050616144707.18bfa000.lists@yazzy.org>

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> On Thu, 16 Jun 2005 05:37:18 -0700
> Frank Mayhar <fmayhar@gmail.com> wrote:
>
>> On Wed, 2005-06-15 at 11:45 +0200, Marcin Jessa wrote:
>> > I am looking for solution I could implement on a link with a huge
>> latency when ping replies can go up to a few hundred miliseconds, e.g
>> sateliete links.
>> > What I was thinking about is some kind of virtual interface which
>> could translate tcp to udp in one of the pears of the link and push
>> the data it received from a 'normal' interface through the virtual
>> interface without bothering about ack-timing.
>> > The receiving end would have a similar interface which would translate
>> the udp data stream to tcp and then route it out to the internet.
>> > (normal network)tcp<-->virtual udp interface<-------->virtual udp
>> interface<-->tcp(normal network)
>> >
>> > Is there something avaliable on FreeBSD that can be used for that
>> purpose?
>> > Maybe someone is working on such a thing in CURRENT ?
>> > Any thoughts about that? Any sugestions for a solution?
>>
>> You want SCPS (the Space Communications Protocols Specification)
>> software.  Briefly, it fakes local TCP on either end while talking its
>> own protocol over the high-latency link.  I don't know if there is any
>> open-source package available but there are certainly commercial
>> solutions out there.
>> --
>
> Correct. That's why I asked about this problem here.
> I was in doubt something like that existed for FreeBSD.
> We are willing to pay someone to develop such a solution for FreeBSD.
> I'd love to get in touch with someone willing to pick up that challenge.
>
>

someone forwarded me this link (offlist) and said they have a fbsd
implementation of SCPS.  I have no other details.

http://www.xiplink.com/

jeff

>
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