Thomas,
Based on my experiences with the Microsoft FTP servers and clients, there
are upper layer protocol limitations with respect to how it handles passing
data from into the TCP layers. As a result, I concur with Dave on using non
MS products to get your throughput.
Also, TFTP is a single packet per RTT acknowledgement protocol. Thus,
unless you want 512 byte/RTT throughput, you will NOT see anything better.
Greg
-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of David R. Beering
Sent: Wednesday, February 23, 2000 12:06 PM
To: Thomas Wiard
Cc: [email protected]; [email protected]
Subject: RE: bandwidth on VSAT transfer
Thomas:
As an addendum to Fred's note ...
We did some testing about a year ago with the NetManage FTP Software
product. It is a third-party TCP stack for Win98 that supports RFC1323. See
to recall that we were getting something like 120 Mbps single-stream over a
GEO delay simulator. It is my understanding that NetManage has most of the
'knobs' to tweak the TCP parameters (window size, timers, etc.) exposed to
the user, so this should be relatively straightforward.
Good luck.
Dave Beering
-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Thomas Wiard
Sent: Wednesday, February 23, 2000 4:07 AM
To: [email protected]
Cc: [email protected]
Subject: bandwidth on VSAT transfer
Hi from France.
we are testing the Comsat VSAT solution (linkway 2000) but we have a
limitation about the bandwidth on a TFTP, FTP and RTSP transfer.
for instance, on an FTP or TFTP transfer, we are up to 80 kbps on each to
session. That is to say, if I open 4 FTP sessions, I am able to transfer 4
different files at each 80 kbps.
The purpose is to be able for me to transfer in one session up to 2 Mbps (my
bandwidth on the sattelite)
I am using Windows 98 on each point of the connection.
Is anybody can help me ?
a++
Thomas Wiard
[email protected]
phone : +33 1 42 30 18 66
mobile : +33 6 14 98 69 63
This archive was generated by hypermail 2b29 : Wed Feb 23 2000 - 17:26:56 EST