Features:• 24-port 10/100/1000Base-T Gigabit RJ-45 copper• 2 100/1000Base-X mini-GBIC/SFP slots• RJ-45 console interface for switch basic management and setup• Reset button for system factory default and reboot• Complies with IEEE 802.3at High Power over Ethernet• Complies with IEEE 802.3af Power over Ethernet• Up to 24 ports of IEEE 802.3af / 802.3at devices powered• Supports PoE Power up to 30.8 watts for each PoE port• 300-watt PoE budget• Auto detects powered device (PD)• Circuit protection prevents power interference between ports• Remote power feeding up to 100m• PoE Management- Total PoE power budget control- Per port PoE function enable/disable- PoE Port Power feeding priority- Per PoE port power limitation- PoE delay- PD classification detection• Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)• High performance Store and Forward architecture, runt/CRC filtering eliminates erroneous packets to optimize the tīkla bandwidth• Supports VLAN- IEEE 802.1Q tagged VLAN, up to 256 VLAN groups, out of 4094 VLAN IDs- Protocol VLAN• Supports Spanning Tree Protocol- STP (Spanning Tree Protocol)- RSTP (Rapid Spanning Tree Protocol)- MSTP (Multiple Spanning Tree Protocol)- STP BPDU Guard, BPDU Filtering and BPDU Forwarding• Supports Link Aggregation- IEEE 802.3ad Link Aggregation Control Protocol (LACP)- Maximum 8 LACP groups, up to 16 ports per LACP group- Cisco ether-channel (Static Trunk)- Maximum 8 trunk groups, up to 8 ports per trunk group• Provides port mirror (many-to-1)• Ingress / Egress Rate Limit per port bandwidth control• Storm Control support- Broadcast / Unknown-Unicast / Unknown-Multicast• Traffic classification- IEEE 802.1p CoS- DSCP / IP Precedence of IPv4 / IPv6 packets• Strict priority and Weighted Round Robin (WRR) CoS policies• Supports IGMP Snooping v2 and v3• IGMP Querier mode support• IGMP Snooping port filtering• Up to 256 multicast groups• Authentication- IEEE 802.1X port-based tīkla access authentication- Built-in RADIUS client to co-operate with the RADIUS servers- DHCP Option 82- RADIUS / TACACS+ login user access authentication• Access Control List- IPv4 IP-based ACL- IPv4 IP-based ACE- MAC-based ACL- MAC-based ACE• MAC Security- Static MAC- MAC Filtering• Port Security for Source MAC address entries filtering• DHCP Snooping to filter distrusted DHCP messages• Switch Management Interface- Local Command Line Interface- Web switch management- Telnet Command Line Interface- SNMP v1, v2c and v3- HTTPs secure access• Built-in Trivial File Transfer Protocol (TFTP) client• Static and DHCP for IP address assignment• System Maintenance- Firmware upload / download via HTTP / TFTP- Configuration upload / download through HTTP / TFTP- Dual Images- Hardware reset button for system reboot or reset to factory default• SNTP tīkla Time Protocol• Link Layer Discovery Protocol (LLDP) Protocol and LLDP-MED• SNMP trap for interface Link Up and Link Down notification• Event message logging to remote Syslog server• Four RMON groups (history, statistics, alarms and events)• PLATīkla Smart Discovery UtilityTechnical Specifications:• Copper Ports: 24 x 10/100/1000Base-T RJ45 Auto-MDI/MDI-X Ports• PoE Injector Port24 802.3af / 802.3at PoE Injector Ports• SFP/mini-GBIC Slots: 2 100/1000Base-X SFP interfaces, supporting 100/1000Mbps dual mode• Console: 1 x RS-232-to-RJ45 serial port (115200, 8, N, 1)• Switch Architecture: Store-and-Forward• Switch Fabric: 52Gbps / non-blocking• Switch Throughput@64 bytes: 38.6Mpps @64 bytes• MAC Address Table: 8K entries• Shared Data Buffer: 4.1 megabits• Flow Control: IEEE 802.3x pause frame for full-duplex• Back pressure for half-duplex• Jumbo Frame: 9216 bytes• Reset Button< 5 sec: System reboot, > 5 sec: Factory default• Thermal Fan: 2• Power Requirements: 100~240V AC, 50/60Hz, 4A (max.)• Power Consumption / DissipationMax. 330 watts / 1122 BTU• Dimensions (W x D x H)445 x 207 x 45 mm (1U height)• Weight: 2.8kg• Enclosure: Metal• PoE Standard: IEEE 802.3af Power over Ethernet / PSE• IEEE 802.3at Power over Ethernet Plus / PSE• PoE Power OutputPer Port 52V DC, 300mA. Max. 15.4 watts (IEEE 802.3af)• Per Port 52V DC, 600mA. Max. 30 watts (IEEE 802.3at)• PoE Power Budget300 watts• Number of PDs, 7 watts24• Number of PDs, 15.4 watts19• Number of PDs, 30 watts9• Port Mirroring: TX / RX / Both• Many-to-1 monitor• VLAN802.1Q tagged-based VLAN • Up to 256 VLAN groups, out of 4094 VLAN IDs• Protocol VLAN• Link Aggregation: IEEE 802.3ad LACP supports 8 groups of 16-port trunk and static trunk supports 8 groups of 8-port trunk• Spanning Tree ProtocolSTP / RSTP / MSTP• MulticastIGMP (v2/v3) Snooping• IGMP Querier• Up to 256 multicast groups• Access Control ListIPv4 IP-based ACL / MAC-based ACL / IPv4 IP-based ACE / MAC-based ACE• QoS: 8 mapping ID to 8 level priority queues  - Port Number  - 802.1p priority - DSCP field in IP Packet• Traffic classification based, Strict priority and WRR• SecurityIEEE 802.1X – port-based authentication• Built-in RADIUS client to co-operate with RADIUS server• RADIUS / TACACS+ user access authentication• MAC filter• Static MAC address• DHCP Snooping and DHCP Option82• STP BPDU Guard, BPDU Filtering and BPDU Forwarding, Basic Management Interfaces: RJ45 Console / Web browser / Telnet / SNMP v1, v2c, v3, Firmware upgrade by HTTP / TFTP protocol through Ethernet tīkla: Remote / Local Syslog, System log, LLDP protocol, SNTP• SNMP MIBs: RFC 3635 Ethernet-like MIB, RFC 2863 Interface Group MIB, RFC 2819 RMON (1, 2, 3, 9), RFC 1493 Bridge MIB• Regulation ComplianceFCC Part 15 Class A, CE• Standards Compliance: IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX/100Base-FX, IEEE 802.3z Gigabit SX/LX, IEEE 802.3ab Gigabit 1000Base-T, IEEE 802.3x Flow Control and Back pressure, IEEE 802.3ad Port Trunk with LACP, IEEE 802.1D Spanning Tree protocol, IEEE 802.1w Rapid, IEEE 802.1s Multiple Spanning Tree protocol, IEEE 802.1p Class of Service, IEEE 802.1Q VLAN Tagging, IEEE 802.1x Port Authentication tīkla Control, IEEE 802.1ab LLDP, IEEE 802.3af Power over Ethernet, IEEE 802.3at High Power over Ethernet, RFC 768 UDP, RFC 793 TFTP, RFC 791 IP, RFC792 ICMP, RFC 2068 HTTP, RFC 1112 IGMP version 1, RFC 2236 IGMP version 2, RFC 3376 IGMP version 3• Operating: Temperature: 0 ~ 50 degrees C, Relative Humidity: 5 ~ 95% (non-condensing)• Storage: Temperature: -10 ~ 70 degrees C, Relative Humidity: 5 ~ 95% (non-condensing)