MaxNormLookupMemory
HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Data type |
Range |
Default value |
---|---|---|
REG_DWORD |
0x0 | 0x1–0xFFFFFFFE ( bytes ) | 0xFFFFFFFF |
(Varies with the system and amount of physical memory on the computer. See description.) |
Description
Determines the maximum amount of system memory that TCP can allocate for the routing table and its data.
Value |
Meaning |
---|---|
0x0 |
There is no TCP routing table. |
0x1–0xFFFFFFFE |
Specifies the maximum amount of system memory that can be allocated to the TCP routing table. |
0xFFFFFFFF |
There is no limit on the amount of system memory that TCP can allocate to the TCP routing table. |
The default value for this entry is determined both by the amount of physical memory on the computer when TCP/IP starts and by the version of Windows running on the computer, as shown in the following table:
Amount of physical memory |
Windows 2000 Server |
Windows 2000 Professional |
---|---|---|
Less than 19 MB |
0x25800 (150 KB = 1,000 routes) |
0x25800 (150 KB = 1,000 routes) |
19–63 MB |
0x180000 (1.5 MB = 10,000 routes) |
|
64 MB or more |
0x500000 (5 MB = 40,000 routes) |
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.