Rackmount switch switching ports 48 10 gigabit ethernet ports 4x sfp gigabit ethernet ports 48 x rj 45 switch type standalone management managed layer 3 network standards quality of services qos vlan sflow access control list acl power over ethernet poe mld snooping energy efficient ethernet link layer discovery protocol lldp spanning tree protocol stp link aggregation lag link aggregation control protocol lacp flow control bootstrap protocol bo