TCP Chimney Offload is a networking technology that helps transfer the workload from the CPU to a network adapter during network data transfer (source: Microsoft)
How to configure TCP Chimney Offload in the operating system
- To enable TCP Chimney Offload, follow these steps:
- Use administrative credentials to open a command prompt.
- At the command prompt, type the following command, and then press ENTER:
netsh int tcp set global chimney=enabled
- To disable TCP Chimney Offload, follow these steps:
- Use administrative credentials to open a command prompt.
- At the command prompt, type the following command, and then press ENTER:
netsh int tcp set global chimney=disabled
- To determine the current status of TCP Chimney Offload, follow these steps:
- Use administrative credentials to open a command prompt.
- At the command prompt, type the following command, and then press ENTER:
netsh int tcp show global
These are the results on Windows 10 version 1709 OS Build 16.299.248:
On another note
The registry key : Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters will display
Further inside of the TCPiP hive you can see the same information and more details about the DHCP stack associated with the interface ID:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{03dc51ef-d26e-4e33-9c84-319046c9c133}
Where the long number starting with 03dc… is the interface id of the NIC . The registry key will display the DHCP information of r card in use:
additional recommended reading on the topic: https://support.microsoft.com/en-us/help/951037/information-about-the-tcp-chimney-offload-receive-side-scaling-and-net