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- Path: news.gate.net!not-for-mail
- From: dhaire@gate.net (doug haire)
- Newsgroups: comp.dcom.modems
- Subject: Re: Supra will offer upgrade to 33.6!
- Date: 25 Feb 1996 08:26:46 -0500
- Organization: CyberGate, Inc.
- Message-ID: <4gpo2m$1eeg@seminole.gate.net>
- References: <312172b0.302209@uchinews.uchicago.edu> <4ftaot$rpc@shellx.best.com> <31226a7d.63749347@uchinews.uchicago.edu> <4g182k$1mu2@navajo.gate.net> <31243778.561299@uchinews.uchicago.edu> <4g3t66$26um@hopi.gate.net> <dan.878.312C8AD9@supra.com> <4gl4
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- d7$1nss@seminole.gate.net> <eric-2402961326530001@sobt.ao.net>:
- Distribution:
-
- Eric Shaw (eric@ao.net) wrote:
- : In article <4gl4d7$1nss@seminole.gate.net>, dhaire@gate.net (doug haire) wrote:
- :
- : >Dan Moore (dan@supra.com) wrote:
- : >: The default setting is %E0 (do not initiate retrains based on line
- : >: conditions) and %G1 (do initiate rate renegotiations based on line
- : >: conditions). This is exactly what you want the modem to do, quickly adjust
- :
- : >However, is there not a time when a retrain is important to do? And why
- : >would you restrict your own modem from doing this, leaving it dependent
- : >upon the remote modem to be one that does NOT restrict this?
- : >
- : >If there is no time that this would be useful, why is it an option at all?
- :
- : I am not sure on this, but I think if the modem decides that the sudden
- : change in line quality was bad enough to warrant a full retrain rather
- : than a rate renegotiation, and the remote modem does not support this
- : feature, it may cause the connection to be lost completely. I found that
- : if I issue an ATO1 instead of an ATO to force a retrain while going into
- : online mode, it *consistently* will disconnect when connected to a PPI
- : modem. It does not appear to depend on what state v.42 is in when the
- : command is issued, as some have suggested - ATO1 causes a disconnect every
- : time, due to "loss of carrier", while an ATO to go back online works.
-
- This is my point. Why should a dropped carrier be more desireable than a
- retrain? Why should you have to depend on the other modem to *not* be set
- the same way?
-
- The idea that a rate renegotiation is preferable because it takes less
- time is pretty laughable...
-
-