I want to fly fast: ADSL registry optimization Dafa win XP

ADSL optimization is imperative, now specifically for users using Windows XP, our optimization strategy is as follows:
(Note: This method is only applicable to PPPoE mode ADSL user)

Please make a backup of the registry before making these changes, so that it is not suitable for your situation or when you make corrections. The optimization method introduced here is not guaranteed due to the different networks. It must work for you.

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 two 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
**** Type: REG_DWord Double Byte
**** Key Value: 0x0021

Now you can increase the key value of the control MTU

* *** name: ProtocolMTU
**** type: REG_DWord-byte key
****: 1492

ADSL MaxMTU a PPPoE user typically set to 1492 or less, according to Enter the correct value for 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)

< BR>Tcp1323Opts=00000001 (double-byte DWord value)


DefaultTTL =00000040 (double-byte DWord value)


EnablePMTUBHDetect =00000000 (double-byte DWord value)


EnablePMTUDiscovery =00000001 (double-byte DWord value)


GlobalMaxTcpWindowsize =0003ebc0 (double-byte DWord value)
If you use PPPoE connection, it is recommended to use 0003e640