Java library to measure bandwith, latency, hop-count?

Question

I would be very thankful for your help: Do you know any good Java Libraries that can easily be embedded in any Java application that help to measure at least the

• bandwidth
• latency
• hopcount

For example I have a file www.test.com/testfile.tmp and want to measure the aforementioned parameters in downloading the file. Do you know of a good library that can do this?

Thank you very much!! Jan

Answer 1

Take a look at the apache commons network library: http://commons.apache.org/net/ . It'll have some of the things you need to measure. Echo is a powerful, yet restricted tool; most of the sites will have the echo function restricted, but if you are trying to measure within your own network, it'll help.