Rackmount switch switching ports 12 10 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 320 gbs packet forwarding rate 22728 interface 1x management rj 45 max power consumption 1127 w jumbo frame size 9 198 bytes mac address 32 k flash memory 4 096 mb ram 4 096 mb stacking band