I want to do a program.And this program will do that i will give a list which have mirror urls.I mean i want to download same file from that urls.But i want to select which one is fastest mirror.I mean which is way to ask ftp sites are you fastest?
or how can i ask how much is your bandwith?
these are topics

Thanks friends

in my opinion, why would you do that?? unless you are going to try to get the bandwith from every cable your data 'might' get transferred over. and, as you propably do know, sometimes servers fail, meaning that the data has to take another way, which change the result of your calculations. (unless of course, your program is written that way that it waits until all your preferred servers and routers are back online.)