NoteHKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\<interface-name>
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0x1 - 0xFFFFFFFF packets | 0x1388 (5000 packets) |
Establishes the maximum number of packets that the IP forwarding engine is permitted to 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 submits them for transmission.
The optimal value for this entry depends on the number and characteristics of outgoing lines. The default value for this entry is usually sufficient, especially for network adapters that transmit packets very quickly. However, increasing this value might improve the performance of a single RAS interface that multiplexes many slow serial lines.
Note
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).