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. -- Frank Mayhar frank_at_exit.com http://www.exit.com/ Exit Consulting http://www.gpsclock.com/ http://www.exit.com/blog/frank/Received on Thu Jun 16 2005 - 10:37:26 UTC
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