Poe switch rackmount switch switching ports 24 gigabit ethernet ports 24 x rj 45 switch type standalone management unmanaged layer 2 network standards power over ethernet poe auto negotiation flow control full duplex quality of services qos backplane bandwidth 48 gbs packet forwarding rate 357 jumbo frame size 9 216 bytes mac address 8 k buffer 512 kbit flash memory 1 mb poe port 12 poe overall performance 124 w mode store and forward c