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KeepAliveInterval

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Data type

Range

Default value

REG_DWORD

0x1–0xFFFFFFFF ( milliseconds )

0x3E8 ( 1,000 milliseconds = 1 second )

Description

Determines how often TCP repeats keep-alive transmissions when no response is received. TCP sends keep-alive transmissions to verify that idle connections are still active. This prevents TCP from inadvertently disconnecting active lines.

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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.

Related Entries

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TcpMaxDataRetransmissions

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KeepAliveTime

Additional resources