QoS allows the adapter to send and receive IEEE 802.3ac tagged frames. 802.3ac tagged frames include 802.1p priority-tagged frames and 802.1Q VLAN-tagged frames. In order to implement QoS, the adapter must be connected to a switch that supports and is configured for QoS. Priority-tagged frames allow programs that deal with real-time events to make the most efficient use of network bandwidth. High priority packets are processed before lower priority packets.
To implement QoS, the adapter must be connected to a switch that supports and is configured for 802.1p QoS.
Tagging is enabled and disabled using the "QoS Packet Tagging" field in the Advanced tab in Intel® PROSet.
Once QoS is enabled in Intel PROSet, you can specify levels of priority based on IEEE 802.1p/802.1Q frame tagging.
Microsoft* Windows* 2000 Server and Windows Server* 2003 have a utility for 802.1p packet prioritization. For more information, see the Windows system help and Microsoft's knowledge base.
Adaptive Load Balancing (ALB) and Static Link Aggregation (SLA) teams can use QoS load balancing to add priority as a factor in the load balancing process. Teams with QoS load balancing enabled will try to expedite high priority packet transmission.
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NOTE: QoS Load Balancing Bandwidth reserves whole adapters for high priority traffic. It does not do real-time flow analysis and control. For example, if you have a three-adapter team and reserve 95% of the bandwidth for high priority traffic, two adapters are reserved for high priority traffic; the third adapter can pass both high and low priority traffic. |
Last modified on 6/06/06 3:27p Revision 4