Cisco provides a wide range of Fast Ethernet switching modules that share capability for any Fast Ethernet interface to support up to 1000 VLANs between Catalyst 5000 family switches and Cisco routers. They also support any combination of switching modules; modules can be hot-swapped or added without resetting the Catalyst 5000 family. Simply Cisco suggests super flexibility and compatibility. With the help of Cisco's Fast Ethernet switching modules you can easily build your own network according to your needs.