["ALL-SG8618M is a 16* 10/100/1000M RJ45 ports and 2*100/1000M SFP fiber slot ports L2+ managed Ethernet fiber switch, built-in 35W power supply. Support 1U/19 inch rack installation. It is programmed for advanced switch management functions such as 802.1Q VLAN and Q-in-Q VLAN, Multiple Spanning Tree protocol (MSTP), loop and BPDU guard, IGMP snooping, and MLD snooping. Also, the Link Layer Discovery Protocol (LLDP) is the Layer 2 protocol included to help discover basic information about neighboring devices on the local broadcast domain. It provides a quick, safe and cost-effective Ethernet network solution for small businesses and enterprises. Solution for IPv6 Networking With the IPv6/IPv4 dual stack and other management functions, ALL-SG8618M is the best choice for IP CCTV surveillance, VoIP and wireless solution providers to develop the IPv6 network. Meanwhile they help the SMBs to upgrade their network infrastructures to the IPv6 era without any extra investment. ALL-SG8618M can be programmed for advanced Ethernet fiber switch management functions, such as port aggregation, Q-in-Q VLAN, Spanning Tree Protocol, QoS, bandwidth control, ERPS IGMP/MLD snooping etc. The ALL-SG86xx series allows the operation of a high-speed trunk combining multiple ports. Powerful Security Functions ALL-SG8618M provides a comprehensive access control list (ACL) for enforcing security to the edge. It can be used to restrict network access by denying packets based on source and destination IP address, TCP/UDP port number or defined typical network applications. Its protection mechanism also includes 802.1x Port-based and MAC-based user and device authentication. With the private VLAN function, communication between edge ports can be prevented to ensure user privacy. Enhanced Security and Traffic Control ALL-SG8618M supports DHCP Snooping, IP Source Guard and Dynamic ARP Inspection functions to prevent IP snooping from attack and discard ARP packets with invalid MAC address. The network administrator can now construct highly-secure corporate networks with considerably less time and effort than before. User-friendly Secure Management For efficient management, ALL-SG8618M is a managed switch, equipped with console, web and SNMP management interfaces. With management interface, ALL-SG8618M offers an easy-to-use, platform independent management and configuration facility. ALL-SG8618M supports SNMP and it can be managed via any management software based on the standard SNMP v1 or v2 Protocol. Meanwhile ALL-SG8618M offers Cisco-like command via Telnet or console port and customer does not need to learn new command from these switches. Furthermore, ALL-SG8618M offers the remotely secure management by supporting SSH, SSL and SNMP v3 connection where the packet content can be encrypted at each session. Intelligent SFP D DM Function ALL-SG8618M support SFP-DDM (Digital Diagnostic Monitor) function that greatly helps network administrator to easily monitor real-time parameters of the SFP and SFP+ transceivers, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage. Fast Recovery Redundant Ring for Critical Network Applications The ALL-SG8618M supports redundant ring technology and features strong, rapid self-recovery capability to prevent interruptions and external intrusions. It incorporates advanced ITU-T G.8032 ERPS technology, Spanning Tree Protocol (802.1s MSTP), and redundant power input system into customer's industrial automation network to enhance system reliability and uptime in harsh factory environments. In a certain simple Ring network, the recovery time of data link can be as fast as 20ms. Solid on- power work normal, off- power disconnected Blink- work normally, solid on- soft work abnormal, fast Blink- soft upgrade 10/100/1000T RJ45 Interfaces (Port 1 to Port 16): 1000 LNK/ACT (Green), 10/100 LNK/ACT (yellow) Blink- port connected with data transmission; Solid on-port connected without data transmission 100/1000Mbps SFP Interfaces (Port 17 to Port 18): Green Blink- port connected with data transmission; Solid on-port connected without data transmission ESD Protection: ESD IEC61000-4-2: EFT IEC61000-4-4 Port Mirror: TX/RX/BOTH; Many-to-1 monitor Algorithm based on Source/Destination MAC Algorithm based on Source/Destination IP 802.1w Rapid Spanning Tree Protocol (RSTP) 802.1s Multiple Spanning Tree Protocol (MSTP) Storm Control (Broadcast, Multicast, Unknown Unicast) ARP Association (Manual, ARP scanning, DHCP snooping) Classification of packages based on: End.MAC, IP End, TCP / UDP Ports, 802.1x Authentication (port-based e MAC-based) Restriction of WEB access based on: IP Address, And. MAC and Port; SFP DDM (Digital Diagnostics Monitoring) IPv6 Unicast: Static Routing(Software Base) Path maximum transmission unit (MTU) discovery Internet Control Message Protocol (ICMP) version 6", "16 port Gigabit Layer2+ fully managed switch architecture", "Supports NWay protocol for speed (10/100/1000Mbps) and duplex mode (half/full) auto-detection", "Supports back-pressure (half duplex), flow control (IEEE 802.3x and IEEE 802.3az Energy Efficient Ethernet)", "VLAN 4K Static / Port-Based / Tagged Based / Protocol / Voice VLAN / 802.1ad Q-in-Q", "Link Aggregation static link / LACP / Algorithm MAC based or IP based", "IGMP Snooping 256 groups IGMP v1/v2/v3, Fast Leave", "QoS (QoS>QoS multi-label, queue config, QoS mapping)", "Storm control", "Totally fanless, no more annoying noises", "19\" inch angle or wall/table mounting possible"]