beautypg.com

Checksum offload – Allied Telesis AT-2812FX User Manual

Page 71

background image

AT-2812FX ExpressCard Fast Ethernet Fiber (SC) Module Installation and User’s Guide

71

To access the Windows 7 Device Manager, see “Selecting the
Device Manager Window” on page 54
.

2. Click the Advanced tab.

The Advanced tab is shown in Figure 31 on page 64.

3. From the Property list on the Advanced tab, select “Speed & Duplex.”

4. In the Value list on the Advanced tab, select one of the following:

100 Mb Full

100 Mb Half

5. Click OK.

6. If prompted to restart your computer, click Yes.

Although it is not necessary to reboot the system for new adapter
properties to take effect, rebooting is recommended to reinitialize all
registers.

7. Verify that the port LED operates as described in “Physical

Description” on page 20.

Checksum

Offload

Usually, the Checksum Offload function is computed by the protocol stack.
By selecting one of the Checksum Offload properties, the adapter can
compute the checksum.

To change the Checksum Offload setting, do the following:

1. Access the Device Manger for your operating system.

To access the Windows XP Device Manager, see “Selecting the
Device Manager Window” on page 47
.

To access the Windows Vista Device Manager, see “Selecting the
Device Manager” on page 39.

To access the Windows 7 Device Manager, see “Selecting the
Device Manager Window” on page 54
.

2. Click the Advanced tab.

The Advanced tab is shown in Figure 31 on page 64.

3. From the Property list under the Advanced tab, select TCP/UDP

Checksum Offload v4, or TCP/UDP Checksum Offload v6.