Rackmount switch switching ports 28 10 gigabit ethernet ports 4x sfp gigabit ethernet ports 24 x rj 45 switch type standalone management managed layer 2 network standards vlan igmp snooping spanning tree protocol stp port mirroring access control list acl full duplex link layer discovery protocol lldp link aggregation lag link aggregation control protocol lacp quality of services qos weighted round robin wrr dhcp snooping loop detection backplane