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- Newsgroups: comp.sys.ibm.pc.misc
- Path: sparky!uunet!munnari.oz.au!bunyip.cc.uq.oz.au!peter
- From: peter@citr.uq.oz.au (Peter Klavins)
- Subject: Re: ProComm 2.4.3 Kermit up/down-load times
- Message-ID: <peter.715236739@citr.uq.oz.au>
- Sender: news@bunyip.cc.uq.oz.au (USENET News System)
- Organization: Prentice Centre, University of Queensland
- References: <92243.062901IP25179@portland.caps.maine.edu>
- Date: Mon, 31 Aug 1992 04:52:19 GMT
- Lines: 29
-
- IP25179@portland.caps.maine.edu writes:
-
- > When I download in Kermit using ProComm 2.4.3, the estimated time for the
- > process shown in the pop-up 'window' is always half of the actual time re-
- > quired. Do I have some untapped potential here that I'm missing? Or is
- > the program just a taco short of a combination platter?
-
- This might be explained if Kermit is running in 7-bit mode, and then
- whenever it finds a byte with bit 8 set, it prefixes that byte with the
- special 8-bit prefix character (yes, one whole extra character), and
- then sends the actual byte minus bit 8, therefore sending two bytes for
- one actual byte. Kermit can be set to run in 8-bit mode by option
- negotiation at the start of the transfer, but both ends would have to
- support that mode, and I don't know whether Procomm 2.4.3, and the host
- you were using, support that mode, and/or are able to enable it. By the
- way, Kermit supports many other modes that can be negotiated, such as
- sliding windows, long packets, and turning these options on really makes
- it fly! To find out more about the Kermit protocol in general, there is
- an excellent book about it available in computer bookstores, and I
- believe there is a special edition of that book for the PC, including
- software, and then there is the Kermit software source at Columbia
- University watsun.cc.columbia.edu:kermit, from which you can download
- the latest Kermit sources and documentation for any machine under the
- sun.
- --
- ------------------------------------------------------------------------
- Peter Klavins Internet: peter@citr.uq.oz.au Fidonet: 3:640/821
- Centre for Information Technology Research Phone: +61 7 365 4321
- University of Queensland QLD 4072 Australia Fax: +61 7 365 4399
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