Rackmount switch switching ports 24 gigabit ethernet ports 24 x rj 45 4 x sfp switch type standalone management managed layer 3 network standards full duplex access control list acl quality of services qos vlan mld snooping energy efficient ethernet link layer discovery protocol lldp link aggregation control protocol lacp address resolution protocol arp link aggregation lag flow control bootp support igmp snooping backplane bandwidth 56 gbs packet