HP AD339A supports Jumbo frames. Because Jumbo frames reduce a server's CPU processing of network packets, efficiency increases especially for heavy traffic. The same amount of data can be transferred in less frames. The Jumbo frame maximum transmission unit (MTU) size is from 1501 to 9000 bytes.HP AD339A supports virtual LANs (VLANs) for increased flexibility. A Virtual LAN (VLAN) is a logical or virtual network segment that can span multiple physical network segments. VLANs also more efficiently use switches and end-stations by sending broadcasts and multicasts only to the intended nodes.HP AD339A supports PCIe online addition/replacement (OLA/R) on specified systems. Also supports online deletion on HP-UX 11i v3. The card can still be placed in those shared slots as long as no OL is performed.