Tuning Windows Parameters
For Windows platforms, the default TCP/IP settings are usually sufficient. However, under heavy loads it may be necessary to adjust the MaxUserPort and TcpTimedWaitDelay. These parameters determine the availability of user ports requested by an application.
| Parameter | Default Value | Suggested Value |
|---|---|---|
| TcpTimedWaitDelay
This parameter controls the amount of time the OS waits to reclaim a port after an application closes a TCP connection. It has a default value of 4 minutes. During a heavy users load, these limits may be exceeded resulting in an address- in-use connection exception. Set this parameter in the Windows registry at the following location:HKLM\System\CurrentControlSet\Services\Tcpip\Parameters
Value Name: TcpTimedWaitDelay Value Type: DWORD Data: 30 (decimal) |
240 | 30 |
|
MaxUserPort Value Name: MaxUserPort Value Type: DWORD Data: 65534 (decimal) Beginning with Windows2008 it is necessary to execute the following command in order to set the mentioned number of ports:
The given command is based on the following articles at Dynamic Port Range Windows Settings |
5000 | 65534 |