it is quite complex to set all parameters automatically.
I will start to explain the basic concept for the physical NIC parameters like packet size, receive buffers …
The information can be typically found under this registry key on a Windows based system:
You will find a number of sub keys from 0000-9999.
Characteristics key in this sub key has a value of
0x84(132) it tells you that you have found a physical network device. In the sample below for an INTEL network card.
Depending on the network card manufacturer the parameters for packet size, receive buffers … might have different names.
For INTEL the entry for Jumbo packets is e.g.
Changing the neccessary values in the registry will do the job.
But be carefull to use only parameters which are allowed for this network card. E.g. you can not set any value for
The parameters are used after a reboot (also without reboot but this requires a lot more things to do).