[40692] in North American Network Operators' Group

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Re: wanted: wireless magic tricks

daemon@ATHENA.MIT.EDU (Mark Allman)
Thu Aug 16 14:27:14 2001

Message-Id: <200108161827.OAA03651@guns.lerc.nasa.gov>
To: Hank Nussbacher <hank@att.net.il>
From: Mark Allman <mallman@grc.nasa.gov>
Reply-To: mallman@grc.nasa.gov
Cc: Christian Kuhtz <ck@arch.bellsouth.net>,
	"Young,     Jason" <Jason.Young@anheuser-busch.com>,
	"'Cerqua,     Toby'" <toby@platinumsystems.net>,
	"'nanog@merit.edu'" <nanog@merit.edu>
Date: Thu, 16 Aug 2001 14:27:46 -0400
Errors-To: owner-nanog-outgoing@merit.edu



> When we ran a T3 satellite link we installed Mentat boxes on each
> end.  See: http://www.mentat.com/skyx/skyx-nasa.html for a nice
> comparison of TCP vs their SkyX protocol. Bottom line: it works
> and no user had to change a thing in their TCP stack.  Their
> product goes up to T3 speeds, though.  If you have access to the
> end devices and want to "tune the stack" to achieve full thruput
> via high delay links see:
> http://www.psc.edu/networking/perf_tune.html

Right.  Lots of these boxes exist.  I would encourage folks to
consider the implications of these boxes before putting them in
general purpose use, though.  They are sometimes OK, and sometimes
they may not be.  See RFC 3135 for a discussion.

allman


---
Mark Allman -- BBN/NASA GRC -- http://roland.grc.nasa.gov/~mallman/

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