Rackmount switch poe switch switching ports 48 10 gigabit ethernet ports 2x sfp gigabit ethernet ports 50 x rj 45 2 x sfp switch type stackable management managed layer 2 network standards access control list acl auto negotiation quality of services qos vlan weighted round robin wrr loop detection spanning tree protocol stp dhcp snooping address resolution protocol arp link aggregation lag link aggregation control protocol lacp energy efficient et