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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: 26 Feb 1996 10:43:19 -0500
- Organization: CyberGate, Inc.
- Message-ID: <4gsken$1sr0@navajo.gate.net>
- References: <312172b0.302209@uchinews.uchicago.edu> <4ftaot$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
- <4gpo2m$1eeg@seminole.gate.net> <eric-2502962138420001@sobt.ao.net>
- NNTP-Posting-Host: navajo.gate.net
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-
- Eric Shaw (eric@ao.net) wrote:
- : In article <4gpo2m$1eeg@seminole.gate.net>, dhaire@gate.net (doug haire) wrote:
- :
- : >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?
- :
- : Its not depending on the other modem *not* being set the same way. It
- : *NEEDS* it to be set the same way, i.e. either both set to retrain or both
- : set not to. Otherwise, when a retrain is attempted, the modem with
- : retraining off or not implemented doesn't know what to do, and may lose
- : the carrier completely.
-
- That is incorrect. As was explained to me, the Supra *will* respond to a
- request for a retrain, it will just not initiate one.
-
- : >The idea that a rate renegotiation is preferable because it takes less
- : >time is pretty laughable...
- :
- : A rate renogotiation taking a fraction of a second is pretty much
- : transparent to the end user. It is not enough to cause any transfers to
- : time out. The 30 or more seconds that it can take for a full v.34 retrain
- : can easily cause timeouts, or even cancelled transfers. Therefore, a
- : quick rate renegotiation is preferable to a full retrain, although I would
- : have to agree that a full retrain is still preferable to losing the
- : connection.
-
- I will type slow so you can follow better [g]
-
- A rate renegotiation should take precedence over a full retrain. That is
- pretty much common sense. So far, so good. However, there are times when
- a retrain is *preferable* and necessary. This means that it should *not*
- be disabled. The speed of a rate renegotiation is irrelevent if it isn't
- needed and a retrain is.
-
- Follow along as I mention that USRs manage to do *both* rate
- renegotiation and initialize retrains according to the situation.
-
- The Supra is apparently unable to figure out when it should initiate a
- retrain so the manufacturer disables that as a default.
-
- It does not take a freaking genius to figure out that the Supra has a
- *problem*.
-
- Now, the problem may not be Supra's, it may be the fault of the Rockwell
- chip set. The problem that I have is that Supra seems to be in denial
- about this.
-
-