0x1–0xFFFFFFFF ( packets )
0x1388 ( 5,000 packets )
Establishes the maximum number of packets that the IP forwarding engine can submit simultaneously for transmission to a particular network interface. If the number of packets exceeds the value of this entry, IP places the excess packets in a queue until outstanding transmissions on the interface are complete, and then it submits the packets for transmission.
The optimal value of this entry depends on the number and characteristics of outgoing lines. The default value is usually sufficient, especially for network adapters that transmit packets very quickly. However, increasing this value might improve the performance of a single remote access interface that multiplexes many slow serial lines.
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.
The default value of this entry is increased in Windows 2000. The default value for Windows NT 3.51 with Service Pack 2 and later is 0x14 (20).