D-Link Systems DGS-3120-24TC/EI - Xstack 24 Port Managed Stackable L2+ Switch +4COMBO SFP Ei Image

Enhanced Network ReliabilityThe DGS-3120 Series targets enterprise/campus and customers who require a high level of network security and maximum uptime. All the models in DGS-3120 Series (except DGS-3120-24SC-DC) support an external redundant power supply so that continued operation can be assured. They also include other features such as 802.1D Spanning Tree (STP) 802.1w Rapid Spanning Tree (RSTP) and 802.1s Multiple Spanning Tree (MSTP) Loopback Detection (LBD) and Broadcast Storm Control that enhance network resilience. The G.8032 Ethernet Ring Protection Switching (ERPS) function minimizes the recovery time to 50 ms. For load sharing and redundancy backup in switch cascading/server attachment configuration the DGS-3120 Series provides dynamic 802.3ad Link Aggregation Port Trunking.