The Cisco Catalyst 2924M XL DC is a 10/100 autosensing Fast Ethernet switch designed for Service Provider Networks that combines outstanding performance, ease of use, and integrated Cisco IOS software. The Catalyst 2924M XL DC is a DC-powered, flexible, and scalable solution, ideal for aggregating Ethernet and Fast Ethernet workgroups and delivering dedicated 10 or 100 Mbps connectivity for network components with high-speed uplink modules, including Gigabit Ethernet and ATM, to connect to servers and LAN backbones.The Catalyst 2924M XL DC switch, a DC-powered member of the Catalyst 2900 Series XL family, contains 24 10BASE-T/100BASE-TX ports and two versatile module slots to provide unmatched expansion capabilities and high-speed connectivity. The modular design allows users to easily add 10BASE-T/100BASE-T, 100BASE-FX, Gigabit Ethernet, or Asynchronous Transfer Mode (ATM) (OC-3) ports to increase port density and deliver high-speed uplinks. With the Gigabit Ethernet module, Catalyst 2924M XL switches can be stacked (up to nine switches) with the low-cost Cisco GigaStack gigabit interface controller (GBIC). The advanced Cisco architecture incorporates a switch fabric of 3.2 Gbps and a forwarding rate of 3.0 million packets per second (pps) to deliver wire-speed performance across all ports.