From owner-freebsd-current@FreeBSD.ORG Thu Jun 16 12:47:11 2005 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BCF7A16A41C; Thu, 16 Jun 2005 12:47:11 +0000 (GMT) (envelope-from lists@yazzy.org) Received: from mail.yazzy.org (mail.yazzy.org [217.8.140.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id 778B443D58; Thu, 16 Jun 2005 12:47:11 +0000 (GMT) (envelope-from lists@yazzy.org) Received: from 217-13-2-82.dd.nextgentel.com ([217.13.2.82] helo=h311r4z3r) by mail.yazzy.org with esmtps (TLSv1:AES256-SHA:256) (YazzY.org) id 1Ditlh-0007ek-2T; Thu, 16 Jun 2005 14:46:49 +0200 Date: Thu, 16 Jun 2005 14:47:07 +0200 From: Marcin Jessa To: frank@exit.com Message-Id: <20050616144707.18bfa000.lists@yazzy.org> In-Reply-To: <1118925438.91936.2.camel@realtime.exit.com> References: <20050615114556.6df96e8c.lists@yazzy.org> <1118925438.91936.2.camel@realtime.exit.com> Organization: YazzY.org X-Mailer: Sylpheed version 1.9.12 (GTK+ 2.6.7; i386-portbld-freebsd6.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Score: -2.6 (--) Cc: freebsd-net@freebsd.org, current@freebsd.org Subject: Re: Looking for networking solution. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jun 2005 12:47:11 -0000 On Thu, 16 Jun 2005 05:37:18 -0700 Frank Mayhar 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.