On Fri, 14 Sep 2007, Carl Karsten wrote: > goal is to stress test a bad-ass wifi setup by simulating 500 laptops. > > Assuming I can find a 500 usb 802.11b adapters for under $1 each (might > happen, > they are small and obsolete.) I need a 'good' way to get them all hooked to > a > few laptops. > > 8 8 port hubs plugged into 1 8 port will give me 64 ports, but thats 9 hubs, > or > about 80 hubs total, or well over $1000, plus a few $100 in usb cables, plus > a > big mess just plugging them all in. > > I am hoping someone makes a big hub. 128 devices is the most I can plug into > a > single OS, right?
I don't know of any big hubs, sorry. Be aware that currently Linux has a limit of 31 ports per hub. You can change it easily enough: USB_MAXCHILDREN is defined in include/linux/usb.h. If you think about it in terms of dollars per port, you may find that the financial requirements are impractically high no matter how the hubs are arranged, unforunately. Guessing at an average retail figure like $5 per USB port plus wifi adapter, you would need a minimum of $2500, not counting cables and other incidentals. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
