bandwidth and traffic simulator for web apps?

Question

Can you suggest how to create a test environment to simulate various types of bandwidths and traffic in a web app?

Or maybe an open source program which does this against

Answer 1

As other people have mentioned, Apache's ab (comes with Apache, so you probably have it already) is good.

Other good options are:

• HP's LoadRunner Apache
• Jakarta's JMeter
• Tsung (if you want to get your erlang on)

I personally like ab and JMeter the best.