Allied Telesis AT-2972T/2 - Manual (Page 42)

Installing Windows Server 2003 and Windows XP Driver Software
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3. Select Properties from the menu.
The System Properties dialog box opens, as shown in Figure 7 on
page 36.
4. Click the Advanced tab.
The Advanced tab is shown in Figure 12.
Figure 12. Advanced Tab
5. From the Properties list, select 802.1p QOS.
6. From the Values list, select one of the following:
ˆ Enable - Enables the 802.1p QOS property.
ˆ Disable - Disables the 802.1p QOS property. This is the default.
Note
Enabling 802.1p QOS also requires an 802.1p aware switch.
7. Click OK.
8. If prompted to restart your computer, click Yes.
Even though it is not necessary to reboot the system for new adapter
properties to take effect, rebooting is recommended to reinitialize all
registers.