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- Newsgroups: comp.dcom.modems
- Path: night.primate.wisc.edu!aplcenmp!wb3ffv!usenet
- From: dbryan@mail.bcpl.lib.md.us (J. David Bryan)
- Subject: What triggers retrains and fall-forwards?
- Sender: usenet@abs.net
- Message-ID: <Dnw50n.7n3@abs.net>
- Date: Thu, 7 Mar 1996 09:29:10 GMT
- X-Nntp-Posting-Host: ppp11.bcpl.lib.md.us
- Organization: Palomar Corporation
- X-Newsreader: WinVN 0.99.7
-
- Dear ListFolks,
-
- I understand that line conditions may cause retrains and fall-backs in
- response to degradation (determined by errors in transmission?), but what
- causes the modems to fall-forward? That is, once the modems are operating at
- a slower speed and transmission errors are no longer occurring, what prompts
- the modems to attempt to speed up the communication? Is it a function of
- time, or some number of packets received without error? Are there user
- settings which can alter the criteria used?
-
- I have connected initally at a reduced speed, worked for a while, and then
- have had a retrain improve the transmission speed. What triggered the modem
- to attempt the retrain?
-
- Thanks for any insight into this phenomenon.
- --
- -- Dave Bryan
- dbryan@mail.bcpl.lib.md.us
-
-