24-port managed Layer 2 Fast Ethernet switch with integral IP router, firewall, and optional VPN Supports all NIMs and DIMs Single combination 10/100/1000Base-T Ethernet port/SFP module slot for high-speed uplink or stacking requirements Non-blocking switching capacity: 6.8 Gbps 1U, 19-inch rackmount metal enclosure Auto-ranging Power: +24/-48 VDC Full-featured, managed Layer 2 switch-routers 24-port Fast Ethernet with Gigabit SFP for uplink or stacking Unique all-in-one switching/ routing/firewall/VPN platforms Standards-based for ease of interoperability 6.8 Gbps switching capacity, non-blocking Stacking up to 16 switches with single IP address management Link Aggregation, GVRP, and LLDP MAC-based port security SIP ALG for NAT traversal in VoIP applications Easily recognizable Command Line Interface (CLI) Intuitive web-based Graphical User Interface (GUI) Free firmware updates