According to this article it is a good idea to shape the traffic if one has a asymmetric line. As I have a ADSL line 8 Mbit down and 1 Mbit up I thought it would be good to give it a try. I already have IPFW running so all I had to do was to add the traffic shaping configuration into the firewall configuration. I had to recompile the kernel also to include DummyNet but that was quickly done as I have done it before.

Now it is just to wait and see if I notice any difference.