The ethernet checksum offload feature improves system performance by offloading the CPU-intensive TCP/IP checksum tasks to the hardware.
Note: This web page is controlled by the Checksum Offload field in the Ethernet Basic Configuration page. If Checksum Offload is disabled, this web page is read-only and no configuration change is allowed. If Checksum Offload is enabled, configuration change is allowed on this web page.
For each parameter, select the corresponding check box to enable it, or clear the check box to disable it.
| Parameter | Description |
|---|---|
| IPv4 transmit checksum | Enable or disables the IPv4 Transmit Checksum Offload feature. When this feature is enabled, the operating system passes the task of calculating IP (Internet Protocol) checksums for transmitted packets to the Ethernet hardware. |
| IPv4 receive checksum | Enable or disables the IPv4 Receive Checksum Offload feature. When this feature is enabled, the operating system passes the task of calculating IP checksums for received packets to the Ethernet hardware. |
| UDP transmit checksum | Enable or disables the UDP (User Datagram Protocol) Transmit Checksum Offload feature. When this feature is enabled, the operating system can use the Ethernet hardware to calculate UDP checksums for transmitted packets. |
| UDP receive checksum | Enable or disables the UDP Receive Checksum Offload feature. When the feature is enabled, the operating system can use the Ethernet hardware to calculate UDP checksums for received packets. |
| TCP transmit checksum | Enable or disables the TCP Transmit Checksum Offload feature. When the feature is enabled, the operating system can use the Ethernet hardware to calculate TCP checksums for transmitted packets. |
| TCP receive checksum | Enable or disables the TCP Receive Checksum Offload feature. When the feature is enabled, the operating system can use the Ethernet hardware to calculate TCP checksums for transmitted packets. |
| Button | Description |
|---|---|
| Apply | Apply changes. When you click Apply, the network interface is disabled and then enabled in order for the changes to take place. This might result in error messages from network applications. |
| Back | Return to the Ethernet Basic Configuration page. |