Rackmount switch switching ports 12 gigabit ethernet ports 12 x sfp switch type stackable management managed layer 3 network standards jumbo frames vlan spanning tree protocol stp quality of services qos full duplex flow control backplane bandwidth 68 gbs packet forwarding rate 506 interface 1x management rj 45 jumbo frame size 9 198 bytes mac address 32 k flash memory 4 096 mb ram 4 096 mb stacking bandwidth 480 gbps link protocols 10base