Le Dimanche 14 Février 2010 18:20:37, Amos Jeffries a écrit : > must By must i was meaning that according his scenario, no other possibilities are. As an ISP he cant block his customers but he loves to have better internet perception. Of course, I know that there are other possibilities such as Traffic Shapping and QoS (look http://en.wikipedia.org/wiki/WAN_optimization). But all these means the effort of downloading content from internet. Caching avoids that effort, so by knowing what to catch will benefit in greater mode. I'm not saying he most avoid using QoS or Traffic Shapping, but the first effort should be caching as must as possible.