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AT-29xx Series Gigabit Ethernet Network Adapters Installation Guide
55
802.1p QOS The 802.1p QOS property is a standard that enables Quality of Service
(QOS). It is responsible for the QOS provisions on the local segment, and
the avoidance of the “all packets are treated equally” issue, which falls
onto the hub or switch servicing segment. The 802.1p QOS property
provides prioritization of packets traversing a subnet. Thus, when the local
segment becomes congested and the hub or switch workload results in the
delay (dropping) of packets, those packets with flags that correspond to
higher priorities receive preferential treatment and are serviced before
packets with lower priorities.
To enable or disable the 802.1p QOS property, perform the following
procedure:
1. For Windows Server 2003 and Windows XP systems, access the
System Properties Dialog Box. See “Modifying Configuration
Properties” on page 39.
For Windows 2008 R2, Windows 7, and Windows Vista systems,
access the Device Manger for your operating system:
To access the Device Manager window in Windows 2008 R2 or
Windows 7, see “Selecting the Device Manager in Windows 2008
R2 and Windows 7” on page 44.
To access the Windows Vista Device Manager, see “Selecting the
Device Manager in Windows Vista” on page 46.
2. Click the Advanced tab.
The Advanced tab is shown in Figure 21 on page 56.