home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.dcom.modems:11403 can.uucp:187
- Path: sparky!uunet!cs.utexas.edu!torn!utgpu!attcan!telly!eci386!woods
- From: woods@eci386.uucp (Greg A. Woods)
- Newsgroups: comp.dcom.modems,can.uucp
- Subject: Re: UUCP 'g' vs. MNP & V.42
- Message-ID: <1992Jul29.211044.19925@eci386.uucp>
- Date: 29 Jul 92 21:10:44 GMT
- References: <1992Jul20.052318.29102@zooid.guild.org> <1992Jul23.180658.20724@eci386.uucp> <1992Jul26.161854.11452@colnet.cmhnet.org>
- Organization: Elegant Communications Inc.
- Lines: 31
-
- In article <1992Jul26.161854.11452@colnet.cmhnet.org> res@colnet.cmhnet.org (Rob Stampfli) writes:
- > Perhaps, but it can be made to work fine. I originally experienced
- > problems with throughput on uucp-g with MNP enabled. I saw 500-600 cps
- > throughput as opposed to 700 cps on a straight connection. Experimenting
- > revealed that the bottleneck was the uucp window size of 3. Increasing
- > this to 7 resulted in a throughput increase to ~850 cps, independent of
- > whether a straight, MNP or v.42 connection was made. Note that the numbers
- > mentioned above are for v.32 (not bis), and for precompressed news batches.
-
- Indeed these are close to (although slightly better than) the
- measurements I've been able to make.
-
- Unfortunately the maximum negotiable window size of many uucico's
- cannot be easily configured. Although binary can be patched, if you
- know how, you will still have to ensure that your neighbor is also
- allowing 7-packet windows, and that this is indeed the window size
- that's being negotiated (although the througput stats should make the
- latter obvious).
-
- > I now turn off reliable mode when originating a uucp connect, but allow
- > whatever the other end wants to establish when accepting one, and it
- > doesn't seem to make any difference.
-
- Indeed this is what I do, and what I've recommend others do too. The
- latter allows dial-up users to benefit from reliable connections, etc.
- and the former avoids problems if a small packet-window size is used.
- --
- Greg A. Woods
- woods@Elegant.COM, woods@robohack.UUCP VE3TCP ECI & UniForum Canada
- +1-416-443-1734 [h] +1-416-595-5425 [w] Toronto, Ontario; CANADA
- Political speech and writing are largely the defense of the indefensible-ORWELL
-