Networking 101 Video - Switch Latency
Jimmy Ray Purser from TechWise TV provides a pretty good review of how switch performance is measured. Topics reviewed include cut-through switch latency, store and forward switch latency, FIFO, LIFO, and LILO. Check it out if you've always wanted to know how to measure the speed of a switch.
Here's a direct link if the video embed code doesn't load in your browser: http://youtu.be/C8cTrhcbOLc