Date: 24 Nov 1999 17:53:13 -0800 From: Matt Braithwaite <matt@braithwaite.net> To: Brad Karp <karp@eecs.harvard.edu> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: STRIP (was Re: richochet modems) Message-ID: <86g0xv49rq.fsf@zildjian.hq.alink.net> In-Reply-To: Brad Karp's message of "Wed, 24 Nov 1999 20:27:26 -0500 (EST)" References: <199911250127.UAA11786@dominator.eecs.harvard.edu>
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On Wed, 24 Nov 1999 20:27:26 -0500 (EST), Brad Karp <karp@eecs.harvard.edu> said: > >> Sorry, can you explain that a little more? Are you saying that given >> any two radios, you can set up a reliable byte stream between them >> using AT commands? > > Say you have two hosts, A and B, each with a Ricochet, MAC addresses > 0000-0001, and 0000-0002, respectively. > > B can tell its radio: > > ATS0=1 > > A can tell its radio: > > ATDT0000-0002 Wow, I had no idea they carried modem emulation to such extremes! ATS0=1, if anybody's out there who grew up with DSL, means ``answer'' the ``phone'' after one ``ring''. :-) > So my overall point is: for a single hop of PPP over Metricom, > there's no need to use STRIP at all. Unless, of course, you want multiple machines to be able to use the same gateway (PPP over a reliable byte stream only allows one machine at a time.). Also, STRIP probably uses precious bandwidth a little more efficiently than PPP does. (These are really just quibbles, of course. I'm not trying to defend STRIP against HUMR; just pointing out that STRIP is useful for a certain set of problems, though a smaller set.) > And if you want multi-access, or multi-hop, the central ARP server > STRIP requires makes HUMR more convenient. Yeah. I'm curious which has more users. I've never run into any Ricochet users who aren't using straight PPP. -- Matt Braithwaite Here in my car, I can only receive. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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