Rackmount switch poe switch switching ports 24 10 gigabit ethernet ports 4x sfp gigabit ethernet ports 24 x rj 45 switch type stackable management managed layer 3 network standards power over ethernet poe access control list acl quality of services qos mld snooping energy efficient ethernet link layer discovery protocol lldp vlan spanning tree protocol stp link aggregation control protocol lacp address resolution protocol arp link aggregation lag