I work on a large LAN and I'd like to be able to show users the actual speed of the network in BYTES per second. I don't want to just send large files across it and see how long they take because that is also dependent on computer speed. This test should just generate random data from one NIC and see how fast another NIC can receive it and show the results in simple terms. In other words, it should just hammer the network and show me what it can do.
I've found some programs that do similar things, or seem to, but none that just do this one task well. They all seem to be limited by how fast a machine can pull data off the hard drive (in the case of gigabit links) and I want to be able to say "The actual top speed between This building and That building is X megaBYTES per second."
Anyone know of a simple (cheap/free) app that can do this?
2006-10-06 04:03:08 · 3 answers · asked by Brainy Smurf 2 in Computers & Internet ➔ Computer Networking
They may also be limited by the bandwidth * delay product. Not taking this into account can have disasterous effects if the systems are not tuned correctly.
Window sizes need to be calculated correctly to keep enough packets in flight on these long fat pipes to not cause dead spots in transmission. The default for many systems is 32KB which isn't nearly enough to expect decent throughput.
A simple tool to just calculate bandwidth may not be taking these factors into account (just throwing packets down the wire).
http://www.kehlet.cx/articles/99.html - there are more and better articles out there. RFCs as well.
2006-10-10 00:13:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
ethereal is a solid way to capture throuput on a local machine. It also gives you the ability to see what the traffic makeup is as well. That way you can tell what is useful and what is extraneuous (ie netbios calls). The link is www.ethereal.com
2006-10-06 04:30:00 · answer #2 · answered by txengineer762 4 · 0⤊ 1⤋
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2016-12-08 09:32:48 · answer #3 · answered by killeen 4 · 0⤊ 0⤋