Saturday, September 1, 2007

115. Tuning MTU to Boost Internet Speed

Value of MTU decides the size of Internet data packet. Bigger the size, more is the time take
to transmit the packet over the internet. The maximum that you can put as the value of MTU
is 1500. Note that it may not make sense making it smaller than 68. It is therefore wise to use
a value between 1000 and 1500. Again this is a registry tweak and I STRONGLY recommend
the use of a tweaking utility that can do it for you. If you do not have any utility as such at
least make a system restore point so that in case you have some trouble you can roll back to
the previous system settings through the system restore facility provided by the Microsoft.

Open registry editor and Navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Inter
faces\ID_for_the_Adapter.

For this right click on right pane and add a DWORD key by the name MTU. Use a value
from 1000 to 1500. Higher values are recommended.

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