Chapter 8: Setting Advanced Properties

Updating the

Large Send

Offload Property

Normally, the protocol stack performs TCP segmentation. When you enable the Large Send Offload property, the network adapter does the TCP segmentation. There are several Large Send Offload properties to choose from, depending on the TCP/IP version you are using on your PC. You can select IPV4, IPV4 version 2, or IPv6 version 2. By default, the Large Send Offload Property is disabled.

To change the Large Send Offload property, do the following:

1.Access the Advanced tab:

For Windows Server 2003 Operating systems, see “Selecting the Advanced Tab in Windows Server 2003” on page 100.

For Windows Server 2008, Windows Server 2008 R2 or Windows 7 Operating systems, see “Selecting the Advanced Tab in Windows Server 2008, Windows Server 2008 R2, and Windows 7” on page 103.

For Windows Operating systems, see “Selecting the Advanced Tab in Windows Vista” on page 104.

The Advanced tab is shown in Figure 19 on page 102.

2.From the Property list on the Advanced tab, select one of the following:

IPv4 Large Send Offload

IPv6 Large Send Offload

3.From the Value list on the Advanced tab, select one of the following:

Enable - Enables the Large Send Offload property.

Disable - Disables the Large Send Offload property. This is the default.

4.Click OK.

5.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.

6.Verify that the port LED operates correctly. See one of the following descriptions:

“AT-2973SX Adapter Physical Description” on page 17

“AT-2973T Adapter Physical Description” on page 18

“AT-2973T/4 Adapter Physical Description” on page 21

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Allied Telesis AT-2973T manual Updating Large Send Offload Property,  IPv4 Large Send Offload  IPv6 Large Send Offload