... 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 ... Limit Security: IP/MAC and port binding, DHCP Server, IP access list, 802.1X, SNMPv3 Diagnostic: Port Statistic, Port Mirroring, RMON, Trap, Email ...