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- Newsgroups: comp.dcom.modems
- Path: news.csra.net!not-for-mail
- From: jimwhite@cent.com (Jim White)
- Subject: Re: USR: Do they retrain to higher speeds?
- Message-ID: <313aed7a.310537120@news.csra.net>
- Date: Mon, 04 Mar 1996 13:19:52 GMT
- Organization: South Shore Software
- Reply-To: jimwhite@cent.com
- References: <MODEMS-L%96022808580019@VM.ITS.RPI.EDU> <Dno5oA.KGy@freenet.carleton.ca>
- X-Newsreader: Forte Agent .99d/32.168
-
- an171@FreeNet.Carleton.CA (Anthony Hill) wrote:
-
- >
- >Turgut Kalfaoglu (TURGUT%TREARN.BITNET@VM.ITS.RPI.EDU) writes:
- >> When my leased-line modems report CONNECT 21600, does this mean that over
- >> time, they MAY go to 28800 or 33600, (or of course to speeds lower than 21600),
- >> or is it 'stuck' at 21600 thruout the connect time (meaning, days).
- >
- > Yup, although hopefully they won't retrain since retrains take
- >several seconds and are somewhat proned to failure (dropped connections).
- >The modems should first try a rate renegotiate, which is MUCH faster then
- >retraining (actually, it's done over the auxillary channel if you're running
- >the 33.6 code, or at least it's supposed to be, which means you shouldn't
- >notice any delay at all). Now, of course, you're line must support these
- >speeds. If you're stuck at 21600 it may be that you're bandwidth is
- >limiting you to the use of the 2400 symbol rate.
- >
-
- I've been plagued with dropped lines during retrains with my local
- ISP... have had the phone co here many times and the line is okay, or
- so they say.... but your note above intrigues me.... can I tell the
- modem to NOT retrain but rate renegotiate instaed?? will that help??
- ==========>
- Jim White
- South Shore Software
- jimwhite@cent.com
- www.cent.com/paradise.net
- jimwhite@msn.com
-
-