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- Path: news.gate.net!not-for-mail
- From: dhaire@gate.net (doug haire)
- Newsgroups: comp.dcom.modems
- Subject: Re: faster than 28.8
- Date: 11 Feb 1996 12:40:55 -0500
- Organization: CyberGate, Inc.
- Message-ID: <4fl9n7$g7e@seminole.gate.net>
- References: <sumner-2001961038000001@sumner.tiac.net> <4ds0fp$4ap4@news-s01.ny.us.ibm.net> <AD29910A96685C7229@asd-stat13-153.dial.xs4all.nl> <bgrubb-2301960739100001@10.0.2.15> <4e3lbi$r3m@brachio.zrz.TU-Berlin.DE> <eric-2601960120540001@sobt.accessorl.n
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- <4famg4$1nai@seminole.gate.net> <4faoqp$15ci@navajo.gate.net>
- <eric-0802960057500001@sobt.accessorl.net> <4fd6ac$vsm@seminole.gate.net> <eric-1002962301290001@sobt.accessorl.net>: Distribution:
-
- Eric Shaw (eric@accessorl.net) wrote:
- : In article <4fd6ac$vsm@seminole.gate.net>, dhaire@gate.net (doug haire) wrote:
- :
- : >The 'halting' problem you mention here is on those tests? If so, they
- : >mean the modem had to resend data because of errors. These errors are not
- : >reported (unless you do an ati6 after the transfer). And there's where
- : >your poor results seem to be coming from.
- :
- : The halting was not observed during the tests that got in the 7K-8K/s
- : range, but I think I remember it pausing for a few seconds when it got
- : the transfers in the just over 6K/s range. Of course, there may have
- : been unnoticed lags in some 8K Zmodem blocks, and the modem's buffer may
- : have still been emptying while it wasn't receiving data.
-
- If you are watching the sending modem's lights, the RD led will be off more
- than it is on. If you watch the receiving modem's lights, the RD led will be
- on all the time but will appear to flicker. If the receiver's RD led goes
- out at all, the modems are resending data due to errors or the CPU of the
- sender has not sent data to the sending modem.
-
- : >Try using a dialup connection and run your tests again.
- :
- : Then for the compression tests, it shouldn't matter if I lock the modems down to
- : 21.6 or so to avoid errors, right? 28.8 connections are not common enough
- : in Orlando to believe there aren't occasional errors caught by v.42 at
- : that speed.
-
- Yes, I would restrict the top speed if that's the case. I was unaware that
- Orlando had such poor local lines. Are you on GTE or on BellSouth? Again, a
- simple check of the ati6 screen after a test will show any problems
- encountered and can help explain the poor results. I am surprised that you
- haven't checked this out since you obviously are making an effort to get
- some fair and impartial data.
-
- You should, however, not have to worry about this since your Couriers
- should do better than your Supra over regular lines, or at least as well,
- in terms of stable connect speeds. I would be interested in seeing an
- ati11 and ati6 taken after these tests. Feel free to email me with these.
-
- An ati7 would be nice also.
-
-