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echo: aust_modem
to: David Drummond
from: Ludi Desouza
date: 1997-01-06 21:24:08
subject: Re: Specifics on modem retraining

LD> The Courier has defined 'retrain disabled' to mean reject
 LD> remote request.
 
DD>Disabled does mean not enabled doesn't it?
 
You still can not see that 'Retrain Disabled' can have different
interpretations,
 
In my modems firmware
        "Retrain Disabled" = "Local Retrain Disabled"
 
In your modems firmware
        "Retrain Disabled" = "Local & Remote Retrain
Disabled"
 
Your opinion on this is irrelevant, it's in the firmware of real modems in
the real world,  you can't change that.
 
 LD> My modem and others has defined 'retrain
 LD> disabled' to mean accept remote request but not initiate
 LD> request.
 
DD>What's the point of that?
 
The point is obvious,  look at your next statement:
 
DD>I guess the courier feels that if a retrain is necessary
DD>and the other end can't comply, there is no point in
DD>continuing the connection.
 
My modem feels that if the remote modem thinks a retrain is
necessary then it may as well comply,  as there is no point
in losing the connection.
 
Between two Couriers:
 
  Retraining enabled both ends     =>
                           link is ok, retraining enabled
  Retraining disabled on one end   =>
                           link is lost upon a retrain request
  Retraining disabled on both ends =>
                           link is ok, retraining disabled
 
Between two SmartModems:
 
  Retraining enabled both ends     =>
                           link is ok, retraining enabled
  Retraining disabled on one end   =>
                           link is ok, retrain request granted
  Retraining disabled on both ends =>
                           link is ok, retraining disabled
 
 
What doesn't make sense?
 
Ludi.
ludi{at}triode.net.au

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