Rackmount switch switching ports 48 gigabit ethernet ports 48 x rj 45 4 x sfp fast ethernet ports 48 x rj 45 4 x sfp ethernet ports 48 x rj 45 switch type standalone management managed layer 2 network standards link layer discovery protocol lldp link aggregation lag spanning tree protocol stp link aggregation control protocol lacp vlan jumbo frames igmp snooping energy efficient ethernet flow control full duplex loop detection broadcast storm control