Get all the details behind the gigabit access switch comparison test that appeared in Network World in March 2008. Suffice to say that the days of packet in, packet out are gone. Switches from an array of vendors were tested for Layer 2 and Layer 3 IPv4 unicast and multicast performance, Layer 2 multicast group capacity, 802.1X/NAC support, storm control, management and usability, power consumption, and other features.