Management: Web, Telnet, Serial Console, SNMP Control: VLAN/GVRP, QOS, IGMP Snooping/Query, LACP, Rate Limit Main Features2 Gigabit Copper/SFP combo ports, plus 16 Fast Ethernet ports SFP socket for Easy and Flexible Fiber Expansion Redundancy: Gigabit X-Ring (ultra high-speed recovery time < 10 ms), RSTP/STP (802.1w/1D) Management: Web, Telnet, Serial Console, SNMP Control: VLAN/GVRP, QOS, IGMP ...