NoteHKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 64 - 65536 table entries | 512 |
Determines the size of the hash table in which TCP control blocks (TCBs) are stored.
TCP stores TCBs in a hash table so it can find them very quickly. If you adjust the number of TCBs the system creates (as specified by the value of MaxFreeTcbs), you should adjust this value proportionally.
Note
The value of this entry must be a power of 2. If you enter a different value, the system rounds your value up to the next higher power of 2.
Windows 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.
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