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The S31XXGS series switches are L2 managed switches that are downlink to 1GE ports and uplink to 1G SFP ports. The L2 functions of these switches provide rich support for port-based VLAN ACLs, making it easy to implement network monitoring, traffic supervision, priority re-labeling, and data forwarding control. It supports the traditional STP/RSTP/MSTP layer 2 link protection technology, which greatly improves the fault-tolerant and redundant backup capabilities of the link and ensures the stable operation of the network. It is suitable for use as an access layer in industrial parks, residential areas, hospitals, schools, hotels and other scenarios.