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Old 07-12-2003, 05:58 AM   #1
Registered: Dec 2001
Location: Scotland
Distribution: Slackware 9.1-14.2 RH 6.2/7, RHEL 6.5 SuSE 8.2/11.1, Debian 10.5
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Networking, FTP, samba issues

My previous post, touching on this matter can be found here:

I have since done some testing and found that the performance of my network is very, very poor.

The machines is question are as follows:
Win2K, 2x 1GHz PIII, 2Gb ram, 80 Gb
Win NT, AMD K6III 450 MHz, 768 Mb ram, 2x2.5Gb SCSI+120Gb
RH7, AMD 800MHz K7, 1Gb ram, 80Gb
RH6.2, 4x125MHz sun sparc, 128Mb ram, 4Gb SCSI

Now without trying to confuce the issue, all machines are connected via their network cards to a router, which allows net access via broadband.

I can successfully host my small web site from the RH7 box, and also use this for FTP purposes, and have toreally found it to be any faster or slower than expected, certainly not any slower, when downloading from that box, that from any other location around the net.

I have tested the transferring of warious files from machine to machine, locally, via both FTP and samba. Basically my findings are that via FTP it is taking me 25min's to transfer 50Mb of files, between the RH7 box and any of the Windows boxes, and slightly longer from the sparc. Using samba, it is a similar story, slightly slower perhaps, for both Linux machines. However, when transferring between the Windows machines , there is a massive difference, in speed.

Obviously I'm not going to ask that you find a 50Mb file and time the completed transfer, but if any could give an idea of your network performance, that I would be most greatfull.

All comments and suggestions would be greatly appreciated...
Old 07-12-2003, 05:28 PM   #2
Registered: Feb 2002
Location: Grenoble
Distribution: Debian
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Speed should be similar, when there's no interference from other transmissions etc. What results do you have. I guess they're not exactly what you expect, right?
Old 07-12-2003, 06:45 PM   #3
Registered: Mar 2003
Location: el paso
Distribution: Redhat, Suse, and freebsd
Posts: 90

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there is a basic principal you should know. If you request or send files from one or more computers the transfer of files can not move faster than that of the slowest machine on the network.

Know sending over the internet or intranet requires a lot more understanding. That data can be sent on different routes to get to the same location.

Best way to find the path traveled is to do a traceroute on linux box or a windows box. Compare the path traveled and see if they go the same path if not then that could account for the difference in time to transfer documents.

Know if you understand routers then this simple explanation can be multiplied by 1000 to get the total complexity of the way a router can route traffic "to and from" a router.

In my past experiences with AS400, UNIX , Linux and Windows machines. I have always noticed a faster transfer of files via the Unix, Linux and AS400 networks. Mainly because they are not running a bunch of background resources to perform this job like in a windows transfer. The only time I notice a gain in transferring files through a windows machine is using Terminal Services or using Putty.exe.....

Understanding that there are dozens of factors that cause a network to have a slower file transfer is the principles taught in Cisco routers. But just to read about it without actually experimenting and finding the way that best suites your needs leads lots of people to ask to many questions. About confusing and enormous network made up of millions of networks inside and outside of each other. With the expansions of wireless networks it just grows at rates that are far to hard to calculate the stress on the infrastructure or backbone that makes up the internet.

Well good luck on finding the best solution for your needs.



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