Manufacturer Code : T1700G-28TQ. TP-LINK JetStream T1700G-28TQ 24 Ports Manageable Ethernet Switch - 24 Network, 4 Expansion Slot - Modular - Twisted Pair, Optical Fiber - 2 Layer Supported - Rack-mountable, Desktop.What This Product Does TP-LINK's Gigabit Stackable Smart Switch, the T1700G-28TQ, is designed to help you build a network that is highly accessible, scalable, and robust. The switch is equipped with 24 10/100/100Mbps RJ-45 ports and 4 dedicated 10G SFP+ slots which can be used for uplinks and/or stacking, providing a strong interconnection between access and aggregation. It provides excellent performance, powerful L2 and L2+ features, enterprise-level QoS, and effective security strategies. Besides, with physical stacking improving performance and simplifies management, T1700G-28TQ is able to provide reliable, cost-effective networking solutions for SMBs.Physical Stacking Physical stacking technology connects multiple devices to form a unified system which allows multiple devices to work together and be managed as a single unit, which improves performance and simplifies management. The stack system of T1700G-28TQs supports up to 40G bi-directional stacking bandwidth with built-in redundancy and provides auto-failover. The switch supports up to 6 units in a stack, which allows it to provide up to 144 GE ports, 12 available 10G SFP+ uplinks and 768Gbps switching capacity, offering high-density developments as well as flexibility for future network expansion need. Abundant L2 and L2+ Features The T1700G-28TQ supports rich L2 features, including 802.1Q tag VLAN, Port Isolation, Port Mirroring, STP/RSTP/MSTP, Link Aggregation Groups, and 802.3x Flow Control function. Additionally, the switch provides advanced features for network maintenance, such as Loop Back Detection, Cable Diagnostics, and IGMP Snooping. IGMP snooping ensures that the switch can intelligently forward the multicast stream only to the appropriate subscribers, while IGMP throttling and filtering restrict each subscriber on a port level to prevent unauthorized multicast access. Besides, T1700G-28TQ supports L2+ feature: static routing, which provides simple network segmentation by routing internal transmissions to make the flow of network traffic more efficient.Secure Networking The T1700G-28TQ supports IP-MAC-Port Binding, Port Security, Storm control, and DHCP Snooping, which help to protect the network from broadcast storms, ARP attacks, and more. The Access Control List (ACL, L2 to L4) feature restricts access to sensitive network resources by rejecting certain packets based on the MAC address, IP address, TCP/UDP ports, and VLAN ID of both the source and destination. And the switch supports 802.1X, which allows network clients to be authenticated through external Radius servers and the guest VLAN function allows non-802.1X clients to access specific network resources.Advanced QoS features To support voice, data, and video services on one network, the switch utilizes rich QoS policies. Administrators can prioritize traffic based on a variety of factors, including Port Priority, 802.1P Priority, and DSCP Priority, to ensure that voice and video streams are always clear and smooth. Enterprise Level Management Features The T1700G-28TQ is easy to use and manage. It supports various user-friendly standard management features, such as intuitive web-based Graphical User Interface (GUI), industry-standard Command Line Interface (CLI), SNMP (v1/2/3), and RMON. This allows the switch to provide valuable status information and send reports on abnormal events. Comprehensive IPv6 support management ensures a smooth migration to an IPv6-based network. It also supports Dual Image to provide improved reliability and network uptime.