The PacketShaper, which you may hear about from the Help Desk, is a traffic shaping device that prioritizes the packet queue. The idea is to allocate a certain amount of bandwidth for a certain type of traffic. This would work better if it could perfectly identify the type of traffic a packet belongs to. File sharing software programs uses encryption or other techniques to get around prioritization of traffic so they won’t get identified and blocked/restricted. They are a moving target. Gaming traffic is a little easier to distinguish, but changing servers, port numbers, etc… make it a moving target also. Our strategy has been to try to have the PacketShaper identify gaming traffic and give it the highest priority. Next it tries to identify FileSharing traffic to restrict it to only 10mbps of bandwidth maximum for all. Finally, each residence hall and apartment complex are given a guaranteed amount of traffic and a burst rate (usually 3 times the guaranteed bandwidth) so that if there is unused bandwidth at that moment, then it can be used if needed. That way there is a large pool of available bandwidth throughout the system for first-come first-serve access to the Internet. Some other traffic may have low priority, specifically ping (ICMP echo/reply). This is what is commonly used for latency checks. While repeated pings to Internet servers may give a relative sense of what the latency is, it is not a true measure.