Change the Maximum Transmission Unit (MTU) Size

Posted On 2007-05-03 by FortyPoundHead
Keywords: Change the Maximum Transmission Unit (MTU) Size
Tags:  Windows NT Windows 2000
Views: 1642

By optimizing the MTU setting you can gain substantial network performance increases, especially when using dial-up modem connections.
MTU stands for Maximum Transmission Unit and in basic terms, it defines the maximum size of a packet that can be transferred in one frame over a network.
Open the registry and find the key below. Add a new value, or edit the existing value, to equal the new MTU size. For modem connections a MTU of '576' would be a good size.

Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters]
Value Name: MTU
Data Type: REG_DWORD
Data: Default = 0xFFFFFFFF

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