Installing RM - Setting TCP timed wait delay (TcpTimedWaitDelay)

This parameter applies only to the Windows® operating system. It determines the time that must elapse before TCP can release a closed connection and reuse its resources.

The recommended value for Max Connections is 100.

The recommended value for Min Connections is 10.

The default value is 0xF0 (240 seconds = 4 minutes). The interval between closure and release is known as the TIME_WAIT state, or 2MSL (twice the maximum segment lifetime) state. During this time, reopening the connection to the client and server is more efficient than establishing a new connection. Reducing the value of this entry allows TCP to release closed connections faster, providing more resources for new connections.

Restriction: When configuring your IBM® WebSphere® Application Server (for Windows), you must specify values for MaxUserPort and TcpTimedWaitDelay.

To view or set the value for a timed wait delay:

From the command prompt, run regedit.
Navigate to HKEY_LOCAL_MACHINE\SYSTEM \CurrentControlSet\Services\ TCPIP\Parameters .
Create a new key for REG_DWORD, and specify the name TcpTimedWaitDelay.
Type the minimum decimal value 30 (which is 0x0000001e in hexadecimal).
Restart the workstation. You can use the netstat command to see that there are fewer connections in TIME_WAIT.