We further analysed the behaviour of the three protocols
while varying: i) the file input size, and ii) the upload bandwidth
(for a constant download bandwidth). In the first scenario
(Figure 7) we repeated the experiment in Figure 6 for
different file sizes. The second scenario (Figure 8) is similar
to the first one but, instead of varying the file size, we used
different upload bandwidths (keeping the download bandwidth
at 100Mbps). For both simulations, we only present
the sum of the time it took to distribute all data (input, intermediate
and output). It is then possible to conclude that
BitTorrent is more scalable while increasing the file size and
decreasing the upload bandwidth (which is an important result
since ISPs provide much lower bandwidth for upload
than for download).