looking for simulation scenario examples

hi,

I am looking for simulation scenario examples (a complete script or
merely a description of the network link topology and delay+bwidth
characteristics would be both equally useful) which are being used for
any kind of simulations with the default ns-3 models. Ideally, these
test cases would contain at least 20 nodes, and multiple traffic
sources.

If you have a testcase like this, please, send it to me. If you are
concerned about confidentiality issues, let me know and I will make sure
not to share these testcases but, since I am really trying to put
together a small performance testsuite for ns-3, it would be most
helpful if these testcases were public.

thank you,
Mathieu