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Article View: comp.sys.amiga.networking
Article #238

Re: Many errors when FTP:ing over PPP

#238
From: Gary D. Walworth
Date: Thu, 18 Jan 1996 21:13
43 lines
2618 bytes
>On 15 Jan 1996 06:08:47 GMT Stefan Mohl (essett@marvin.df.lth.se) wrote:

> I am having problems with many CRC errors when i have large load on my
> PPP-connection. I use an A3000 with an USRsportster28k8. When
> downloading over FTP or ADT i can't get better rates than 900-1400cps.
> The strange thing is that uploading with FTP gives 2000-2500cps. I
> don't think there is a problem with my modem connection or serial

<snip!>

If you can figure this out, please let me know. I too have the USR 28.8
Sportster. I rarely get a connect rate more than 14.4, but I can upload
at 2500 cps.  I can watch the progress bar on AMosaic and tell that I 
am not getting 2k/sec transfer rate. I can use DCC RECEIVE on IRC and tell
the transfer is slow (sometimes ending at 300cps!), but DCC SEND yields
transfer rates well above 2k/sec. 

Bypassing PPP.device altogether, I get the same results using Term 4.5
when connecting to, say, Soft-Logik's BBS (which I know uses 28.8's).

I'm beginning to wonder whether my (nearly) stock A2000 can handle
incoming data at speeds of more than 1k/sec.  Yes, 68000... but I do
have the SupraTurbo 28 (which gives me 28mHz). I have 8 megs RAM, 
OS_3.1, 400mb HD.

Did I waste my money buying a 28.8 v.34 USR Sportster? I'm stuck with
it, since I've already sold my old Zoom 14.4!

Or, could it be the modems at my ISP... they are in the process of 
upgrading their v.fast modems to v.34 (they're doing it POP by POP).
I can call a (long-distance) POP that has v.34 and at least get a
connect rate higher than 16800... but don't have the resources ($$$)
to stay connected and run transfer rate tests.

Any ideas, comments, suggestions... ?

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|      Gary D. Walworth             |       A2000/28mhz/7mb/370mb      |
|   garydean@interpath.com          |        DTP, TCP, CNN, WOBR       |
+++++++++++++++++---------------------------------------++++++++++++++++
                | PGP Public Key available upon request |
                +---------------------------------------+
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Message-ID: <2080.6591T965T1786@interpath.com>
Path: arc1-ca.pugleaf.net!redstone.interpath.net!usenet
References: <4dgonv$t33@unidhp.uni-c.dk>

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Path: arc1-ca.pugleaf.net!redstone.interpath.net!usenet
From: garydean@interpath.com (Gary D. Walworth)
Newsgroups: comp.sys.amiga.networking,comp.sys.amiga.datacomm
Subject: Re: Many errors when FTP:ing over PPP
Date: 18 Jan 1996 21:13:25 GMT
Organization: Interpath -- Providing Internet access to North Carolina
Message-ID: <2080.6591T965T1786@interpath.com>
References: <4dgonv$t33@unidhp.uni-c.dk>
NNTP-Posting-Host: kittyhawk-122.interpath.net
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