Have you tried lowering the MTU settings on the customers end
and on your Max boxes? Believe that these are set to 1524 on
both by default. I've found that the best for a PPP session is
576. Dropping them down to here will slow downloads of large
files, but they'll _usually_ download more reliably. Check your
Max and make sure it is using compression and error correction.
I've never used a 4048, but I used to have a problem with
4004s not doing either. Slowed everything down 'cause then the
com software at either end has to handle error correction,
instead of in the modem (which is much faster). The fact that
LAN and cable modems have no problem also suggests (to me
anyway) that dropping the MTU should help. Also indicates that
reinstalling IMail is just going to be unneeded pain.
Bob
---------- Original Message ----------------------------------
From: "System Administrator" <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Date: Wed, 30 Jun 1999 13:08:13 -0500
>Hi all,
I've been working on this problem for months now, and I'm getting
frustrated enough that I'm gonna pull an overnighter and format the system
and restore IMail. Before I do, I'm gonna do one more post. Here's the
story:
IMail worked absolutely great for about 6 months with no problems. The
last few months, I have been getting calls from dial-up users stating that
they are getting a "Server has not responded in 60 seconds..." message. I
have them increase, the timeout, no workie. I have them install DUN 1.3,
better, but still no workie. LAN and cable modem customers do not have this
problem at all. For dial up users, it happens only when dealing with larger
attachments - 750KB or more (still shouldn't be a problem). Load is not a
problem - there's about 3,000 total customers. IMail machine is plugged
into an HP Procurve 4000M switch that also has an Ascend MAX 4048 and a 3Com
Total Control Chassis with 4 Hiper DSP modem cards jacked into it. Port
traffic on all three of these ports is at 20%-40%.
Below is an exerpt of the SMTP logs, it does it both on SMTP and POP3.
IMail tech support says that error 10054 is "connection terminated by remote
machine" or something similar. Has anybody (please oh please oh please)
have any input as to where this problem is coming from?
06:30 00:08 SMTPD(03A30118) [0.0.0.0] connect 207.250.144.24 port 20131
06:30 00:08 SMTPD(03A30118) send error 10054
06:30 00:09 SMTPD(03A40118) [0.0.0.0] connect 206.162.6.113 port 1032
06:30 00:09 SMTPD(03A40118) send error 10054
06:30 00:09 SMTPD(03A50118) [0.0.0.0] connect 209.207.164.207 port 24102
06:30 00:09 SMTPD(03A50118) send error 10054
06:30 00:09 SMTPD(03A60118) [0.0.0.0] connect 199.190.93.36 port 1076
06:30 00:09 SMTPD(03A60118) send error 10054
06:30 00:09 SMTPD(03A60118) send error 10054
__________________________________
Justin Ellison
System Administrator
InternetUSA
[EMAIL PROTECTED]
http://nebi.com
800-603-3502
Please visit http://www.ipswitch.com/support/mailing-lists.html
to be removed from this list.
--
R. Stull
Programmer
Ipswitch, Inc.
http://www.ipswitch.com/
--
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