We all know that while doing sniffing (with sslstrip and ettercap using backtrack 5 R3) bottleneck affect is a big problem. I'm testing my network with 50 computers.

Could you please tell me how can I avoid an effect of bottleneck? Could we have a discussion round the bottleneck effect? better hardware? is there any more solutions? will just sniffing one computer instead of whole network stop bottleneck affect?

Thank you all beforehand.