Have your T-1 provider take a look at the circuit while trying to upload and download a file and see if they are logging any errors. Over the past 7 years we have had three different T-1s from different providers have issues with one-way traffic, and each time it was a problem on the T-1 circuit itself.
Good luck! Bill ----- Original Message ----- From: "Troy Hilton" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, September 02, 2003 11:07 AM Subject: RE: [IMail Forum] OT- Packet/Network Sniffers > Hmm. Well let me also say that I experience the same thing from my system at > the office and I'm on a T1 line as well. > > Troy > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] Behalf Of E. Shanbrom > > (Ipswitch) > > Sent: Tuesday, September 02, 2003 1:00 PM > > To: [EMAIL PROTECTED] > > Subject: Re: [IMail Forum] OT- Packet/Network Sniffers > > > > > > In most cases it is probably an MTU mismatch for their connection > > speed...you can get a free tool to check this at > > > > http://www.dslreports.com/front/drtcp.html > > > > Eric S > > ----- Original Message ----- > > From: "R. Scott Perry" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Tuesday, September 02, 2003 12:50 PM > > Subject: Re: [IMail Forum] OT- Packet/Network Sniffers > > > > > > > > > > >I need some advice here. I've got as user having problems with his FTP > > > >upload to our web server and I can't figure out why. The upload is > > running > > > >REALLY slow (anywhere from 3k to 15k) but download seems to be pretty > > good. > > > > > > Is the user using an asymmetrical cable/DSL connection? For > > example, you > > > may have 1.5MB download and 128K upload, which would produce a maximum > > > upload speed of under 15K. > > > > > > >I'd like to use a tool to > > > >analyze the network traffic to see if I can find a bottleneck > > somewhere. > > > >What packet sniffers do folks use and can recommend? I'm a > > novice at this > > > >type of stuff so I'd like something that's pretty easy to figure out. > > > > > > A packet sniffer likely won't help much here -- while it will show the > > > packets that come and go, and when they were sent, it won't be able to > > > detect a lot of possible causes (such as a cable modem that throttles to > > > 128K, or an FTP server saving to a drive with very slow write speeds). > > > > > > If you want to use one, you might want to try out Ethereal ( > > > http://www.ethereal.com/ ), which is free and works very well. However, > > be > > > warned that it takes a lot of time to figure out how to interpret packet > > > sniffs, how to set up useful filters, etc. > > > > > > -Scott > > > --- > > > Declude JunkMail: The advanced anti-spam solution for IMail mailservers. > > > Declude Virus: Catches known viruses and is the leader in mailserver > > > vulnerability detection. > > > Find out what you have been missing: Ask for a free 30-day evaluation. > > > > > > --- > > > [This E-mail was scanned for viruses by Declude Virus > > (http://www.declude.com)] > > > > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > > > List Archive: > > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
