Fully complies with IEEE 802.3, 802.3u, 802.3ab and 802.3z standards 24 10/100Mbps Auto-Negotiation RJ45 ports supporting Auto-MDI/MDIX 2 10/100/1000Mbps auto-negotiation RJ45 ports supporting Auto-MDI/MDIX 2 SFP independence expansion slots supporting MiniGBIC modules Supports SNMP, Web and Telnet/Console management Supports SNMPv1, SNMPv2c, SNMPv3 Supports SNMP MIB-II, Ethernet-like MIB and Bridge MIB Supports RMON statistics, history, alarm and event group Supports GARP and GVRP Supports IEEE 802.1X Port-Based Network Access Control protocol and connect to RADIUS Supports 28 Port-Based VLANs and 256 IEEE 802.1Q Tag VLANs Supports IEEE 802.3ad port trunk with LACP Supports Static MAC address and filtering MAC address management Supports Static Port Priority and IEEE 802.1p Priority , supports 4 Priority Queues and ingress policing Supports the configuration function of Port Security, Broadcast Storm Control and Port Mirror Supports IEEE 802.1D Spanning Tree protocol Supports non-head-of-line blocking forwarding Supports IGMP Snooping function Supports SNMP, Web-based, Telnet,Console management Supports firmware upgrade, configuration backed up and restored Rack-mountable steel case Internal power supply