home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.dcom.modems:13056 comp.unix.sysv386:14131 comp.protocols.misc:668 biz.comp.telebit:899
- Newsgroups: comp.dcom.modems,comp.unix.sysv386,comp.protocols.misc,biz.comp.telebit
- Path: sparky!uunet!utcsri!geac!torsqnt!uunorth!anton
- From: anton@analsyn.gts.org (Anton J Aylward)
- Subject: Re: uucico w/v32bis vs zmodem w/v32bis
- Message-ID: <1992Sep6.203025.7861@analsyn.gts.org>
- Organization: ASCI: UNIX Database and Communications
- X-Newsreader: Tin 1.1 PL4
- References: <Bu40L8.47w@gator.rn.com>
- Date: Sun, 6 Sep 1992 20:30:25 GMT
- Lines: 48
-
- larry@gator.rn.com (Larry Snyder) writes:
- : gert@greenie.ucrc.sub.org (Gert Doering) writes:
- :
- : >anton@analsyn.gts.org (Anton J Aylward) writes:
- :
- : >>"If Z-modem is so good, why not tell us how to put a plug-in replacement
- : >> for UUCP based on Z-Modem, which interfaces to news and mail in just
- : >> the same way....."
- :
- : >Various people are working on a Z-Modem-like protocol for Taylor-UUCP.
- :
- : regular zmodem doesn't do so how with todays high speed modems with
- : DTE speeds > 38400. For example, with my TurboPEP modems, zmodem maxes
- : out at around 2100 cps while ymodem-g can exceed that. What we need is
- : a large packet zmodem (like Wazoo -- from Fidonet) with 8K packets to
- : take advantage of todays modems and 115200 baud DTE speeds
-
- I'll ask again.... any ideas about plugging zmodem in as a dial-in
- replacement for UUCP? Not as "another" UUCP protocol, but a bit of
- encapsulation with C or shell.
-
- Main problem is that while I can set up a "BBS" interface, or even a
- login that drops you straight in to zmodem, the beauty of UUCP is that
- it is fully autonomous - the C. D. and X. remove the need for human
- intervention. Its not just upload-download. The X. can say to ram the
- D. through rmail/rnews etc.
-
- The other alternative, which I discussed briefly with perher h. once but
- never did anything with, is to have dynamicaly extendable protocol
- suites. Imagine the upper layes of uucuci being a collection of
- {shell,perl} scripts and there being a set of programs "g", "f", "x" "t"
- (etc) which get called at a lower level to do the work:
-
- /usr/lib/uucp/protocols/g/cico [-t n] [-x n] [-r 0|1] C.files.....
-
- and so on.
-
- This would make applying upgrades to protocols easier... and alalow
- people to experiment with new protocols without having to have all of
- the rest of the program to worry about.
-
- In fact the upper layers can be divided up like this too.
- All the classical justifications about visibility and maintainability
- apply. LRUs for upgrades, changes, enhancements, logging...
-
- Ian, are you listening ?
- --
- Anton J Aylward
-