... DHCP spoofing defense, port speed limit, syslog, 802.1Q, link aggregation, port mirroring, broadcast storm control, switch discover, etc. ... one VLAN)Support 802.1Q VLANLink AggregationUp to 7 link aggregation groups, up to 12 ports in a groupPort MirroringSupport port ... : R232Cabling type: 10BASE-T/100BASE-TX/1000BASE-TStatus LEDs: Link/Act, 1000MOther LEDs: Power, systemOperating temperature: 0~40 ( ...