The Catalyst 3100 is a 24-port workgroup switch, which provides high-end features, including multilayer capabilities at a cost-effective price. As the newest member of the Catalyst 3000 family, the Catalyst 3100 shares its award winning flexibility and functionality with the Catalyst 3000 and 3200. Like the Catalyst 3000 and 3200, the Catalyst 3100 provides Cisco Internetworking Operating System (Cisco IOS) features such as virtual LAN (VLAN) support, Asynchronous Transfer Mode (ATM) services, and Remote Monitoring (RMON) support, functionalities not found in other workgroup Ethernet switches on the market today.The Catalyst 3100 has 24 fixed ports and one FlexSlot. The FlexSlot can be used for the installation of an integrated WAN access module or any one of the many Catalyst 3000 family expansion modules.