The Cisco Catalyst 2950T-48-SI and 2950SX-48-SI switches are cost-effective, standalone Layer 2 managed switches. They join the Cisco Catalyst 2950SX-24, Cisco Catalyst 2950-24, and Cisco Catalyst 2950-12 switches as part of the Cisco Catalyst 2950 Series product line with Standard Image (SI) software. The dual integrated 10/100/1000BASE-T and 1000BASE-SX ports on the Catalyst 2950T-48-SI and the Catalyst 2950SX-48-SI provide redundancy and higher availability, as well as a cost-effective means for cascading switches and managing them as a cluster. No Gigabit Interface Converters (GBICs) are required. These switches are extremely easy to install with Express Setup and manage with Cisco Cluster Management Suite (CMS) Software, an embedded Web-based management tool that allows users to configure and troubleshoot up to 16 Catalyst desktop switches using a single IP address.The dual integrated 10/100/1000BASE-T and 1000BASE-SX ports on the Cisco Catalyst 2950T-48-SI and the Cisco Catalyst 2950SX-48-SI switches provide redundancy and higher availability, as well as a cost-effective means for cascading switches and managing them as a cluster. These switches are easy to install with Cisco Express Setup and manage with Cisco Cluster Management Suite (CMS) Software, an embedded Web-based management tool that allows users to configure and troubleshoot up to 16 Cisco Catalyst desktop switches using a single IP address.The Cisco Catalyst 2950SX-48-SI and 2950T-48-SI switches are ideal for education, state and local governments, and commercial customers that want basic connectivity and require more than 24 ports. For stacking and intelligent services, the Cisco Catalyst 3750 Series Switch, the Cisco Catalyst 3550 Series Switch, and the Cisco Catalyst 2950 Series switches with Enhanced Image software offer more advanced security, quality of service (QoS), scalability, and availability functions. The Catalyst 2950SX-48-SI, 2950T-48-SI, 2950SX-24, 2950-24, and 2950-12 switches cannot be upgraded to the Enhanced Image (EI) software.