Cisco's Catalyst 2900 Series XL is a full line of 10/100 autosensing Fast Ethernet switches that offer outstanding performance, versatile modularity, and easy-to-use management.The 24-port Catalyst 2924M XL switch is an excellent aggregation device, as well as the perfect solution for providing dedicated 10- or 100-Mbps bandwidth to individual users. The Catalyst 2924M XL will is deployed in wiring closets to aggregate workgroup networking devices such as Fast Ethernet hubs, Ethernet hubs and switches, and workgroup servers. Fast EtherChannel technology allows customers to logically `bond" multiple Fast Ethernet links, creating a high-capacity uplink to the corporate or campus backbone. High-speed modules will allow customers the flexibility to upgrade their networks and preserve their initial investment in the Catalyst 2924M XL.Switches running standard software are designated by the letter A, and switches running Enterprise Edition Software are designated by the letters EN.