I have a student network on dmz side of the firewall and staff on the lan side that access terminal services over a site to site VPN. Both networks run fine but on specific days the students network spike considerably and the staff side is killed. This would appear to be down to streaming. I have increased the size of the firewall but I am unsure of the broadband speed and if I should increase it as I presume the students will simply eat up the increased bandwidth.
Can anyone with solid experience in this area advise how they size. I tried using QOS on the Checkpoint and the whole network on both sides screamed to a halt so I rolled back. The checkpoint technician advising me didn't seem very sure.