Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!rutgers!ucla-cs!zen!ucbvax!hplabs!pyramid!romain From: romain@pyramid.UUCP Newsgroups: comp.dcom.modems,news.sysadmin Subject: Re: Fast (12KBaud) UUCP 'g' transfer rates over Voice-Grade Lines Message-ID: <4951@pyramid.pyramid.com> Date: Sat, 15-Aug-87 04:11:14 EDT Article-I.D.: pyramid.4951 Posted: Sat Aug 15 04:11:14 1987 Date-Received: Sun, 16-Aug-87 09:16:29 EDT Sender: daemon@pyramid.pyramid.com Reply-To: romain@pyrnova.UUCP (Romain Kang) Organization: Pyramid Technology Corp, Woodbridge, NJ Lines: 22 Keywords: Telebit, Trailblazer, caveat Xref: utgpu comp.dcom.modems:707 news.sysadmin:286 I would caution people who want to believe 'g' spoof mode is a UNIX panacea. It is a clever hack for people running uucp, but anyone else still needs some form of hardware flow control. I doubt anyone wants to graft 'g' protocol into cu or tip, and the thought of adding Kermit or XMODEM spoofware makes my stomach turn. Otherwise, it is just another measure that might delay the collapse of Usenet. I also seem to remember Rick Adams once said that on a VAX 11/780 using 'g' protocol, transfers maxed out at about 9kbps. This isn't a great tragedy if you've got lots of cheap CPU cycles, but I can imagine people on slower systems unable to afford the impact of running 'g' protocol at high speeds. (Still, it does work with existing systems. I'm tempted to add a remark like, "I smell Peter Honeyman" but that would be too cute...) While the Telebits look better than other "fast" modems available today, they are better in the same sense that a Model A Ford is better than a Model T; the technology is still young and developing. Trailblazers are exciting pieces of equipment, but they still have basic drawbacks; e.g., interactive unresponsiveness in FAST mode, and more seriously, the need for data overrun protection. Anyone who buys Telebits should be aware of these limitations and not expect miracles.