noone said:Thus, lets assume a 40:1 contention ratio :
4000 users on 64k would mean they need a 6.25mb pipe for ALL users on their network at this stage.
yeah, and you havent even factored in the multiplexing ratios on the upstream provider (uunet). I seriously doubt that iBurst are getting 1:1 on the SAT3 cable. They are most probably on a 1:3 or 1:6 because its MUCH MUCH MUCH cheaper. And this leads me to my suspicion : shaping DOES NOT WORK on a multiplexed line because the device does not have a guarantee on the carrier. How can it shape for bandwidth it doesnt always get? It just confused the box and fcuks up everything. Me thinks this is where it started going wrong for iBurst and Sentech...