DCS-4500 Series switch is Gigabits intelligent security access switch for enterprise and MAN networks. It ... DCS-4500-26T-POEDCS-4500 Series switch is Gigabits intelligent security access switch for enterprise and MAN networks. It supports ... Vlan, QinQ, etc), classified bandwidth control, multi link aggregation, intelligent security control, which fulfill the network requirements for Gigabits to desktop ...