Rackmount switch switching ports 20 gigabit ethernet ports 16 x rj 45 4 x sfp fast ethernet ports 16 x rj 45 4 x sfp ethernet ports 16 x rj 45 4 x sfp switch type standalone management managed layer 2 network standards quality of services qos vlan port mirroring backplane bandwidth 40 gbs packet forwarding rate 2976 mac address 16 k buffer 1 024 kbit uplink port 20 x auto mdimdi x link protocols 10base t 100base tx 1000base t mode store an