nonl2br JetStream 28-Port Gigabit Stackable L3 Managed Switch Highlights: Abundant Layer 3 routing protocols including RIP/OSPF/ECMP/VRRP that support a scalable network True Physical Stacking technology supports up to 8 units and 320Gbps backplane bandwidth for high scalability and efficient redundancy 10 Gigabit Ethernet uplink provides high-bandwidth applications for congestion relief and smooth data delivery Removable power unit and redundant power supply functionality minimizes downtime PIM-SM/PIM-DM/IGMP Snooping for resilient video deployments What This Product Does TP-LINKs T3700G-28TQ is an L3 managed switch designed to build a highly accessible, scalable, and robust network. The switch is equipped with 24 Gigabit RJ-45 ports, 4 Combo Gigabit SFP and up to 4 10Gbps SFP slots, giving network administrator great network flexibility. It supports abundant Layer 3 routing protocols such as RIP and OSPF which are a critical part in the creation of fully resilient scalable networks. Whats more, with physical stacking feature and optional redundant external power unit, T3700G-28TQ provides a robust network with efficient redundancy. T3700G-28TQ provides robust security to help secure your enterprise network.TP-LINKs T3700G-28TQ L3 managed switch provides a reliable and cost-effective solution for enterprise, campus and ISP networks.Specifications: L3 Routing and Service Features Wire-speed IP forwarding Static Routing RIP v1, v2 OSPF v2 ECMP PIM-SM/PIM-DM/IGMP DHCP Server/Relay ARP Proxy VRRP Physical Stacking Up to 8 Units Physical Stacking Up to 192 GE, 32 Gigabit combo SFP and 16 10G SFP+ Up to 320Gbps Backplane bandwidth Ring Stacking for Link Redundancy Distributed Link Aggregation Power Supply Hot-swappable power supply module: PSM150 (Maximum Output Power: 150W) Optional external redundant power supply: RPS150 (Maximum Output Power: 150W) Layer 2 Features Link Aggregation Control Protocol (LACP) 4K VLAN IEEE 802.1q VLAN/MAC VLAN/Protocol VLAN/QinQ/Private VLAN/GVRP STP/RSTP/MSTP IGMP Snooping LLDP Quality of Service 8 priority queues Supports IEEE 802.1P DSCP QoS Rate limit Voice VLAN Security Strategies IP-MAC-Port-VID Binding Access Control List (L2L4 ACL) 802.1x and RADIUS Authentication Supports DoS defence Port Security SSL and SSH encryptions Management Web-based GUI Command Line Interface SNMP v1/v2c/v3 RMON (1, 2, 3, 9 group) IP Clustering Dual Image