Optimize ADSL Dafa Win XP through the registry

        ADSL optimization is imperative. We have already introduced the ADSL Registry Simple Optimization Method (General Law). Now for users who use Windows XP, our optimization strategy is as follows:

(Note: This method is only applicable to ADSL users in PPPoE mode)

Please do well before making these changes. Backup of the registry, so that it is not suitable for your situation or when you modify the error. The optimization method described here is not guaranteed to work in your place due to the difference in the network.

Windows XP registry optimization

Windows XP comes with PPPoE dial-up, a more comprehensive optimization of the network connection, so we can optimize the place greatly reduced, according to the official Microsoft currently available information, We can still make the right adjustments for the following places.

Open the Registry Editor (Start Menu -> Run -> Enter Regedt32.exe -> OK) Add the following values ​​in the following items:

1.HKEY_LOCAL_MacHINE \\System\\Ccs\\Services\\Ndiswan\\Parameters\\Protocols\\0

Add the following 2 key values ​​under this item to effectively modify the MTU parameters of Windows XP

**** Name: ProtocolType

**** Type: REG_DWord Double Byte

**** Key Value: 0x0800

**** Name: PPPProtocolType
< BR> **** Type: REG_DWord Double Byte

**** Key Value: 0x0021

Now you can increase the key value of the control MTU

** **Name: ProtocolMTU

**** Type: REG_DWord Double Byte

**** Key Value: 1492

ADSL PPPoE users generally set MaxMTU to 1492 Or smaller, enter the correct value based on your own test results.

2, according to Microsoft's database shows that we can directly use the Windows 2000 modification of the following optimization

add the following several values ​​in the following items:

HKEY_LOCAL_MacHINE \\ SYSTEM \\CurrentControlSet\\Services\\Tcpip\\Parameters

SackOpts=00000001 (double-byte DWord value)

TcpWindowsize= 0003e640 (double-byte DWord value)

Tcp1323Opts=00000001( Double-byte DWord value)

DefaultTTL =00000040 (double-byte DWord value)

EnablePMTUBHDetect =00000000 (double-byte DWord value)

EnablePMTUDiscovery =00000001 (double word Section DWord value)

GlobalMaxTcpWindowsize =0003ebc0 (double-byte DWord value)

If you use PPPoE connection, it is recommended to use 0003e640