Rackmount switch poe switch switching ports 52 10 gigabit ethernet ports 2x sfp gigabit ethernet ports 48 x rj 45 switch type stackable management managed layer 4 network standards power over ethernet poe access control list acl quality of services qos multicast igmp snooping mld snooping link layer discovery protocol lldp energy efficient ethernet spanning tree protocol stp vlan link aggregation lag link aggregation control protocol lacp dhcp s