Quality of Service
Quality of Service |
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Signaled QoS uses signaling protocols, such as RSVP, to alert the network to dynamically adapt traffic handling when priority treatment is required. This is in contrast to configured QoS in which the network is hardwired for QoS.
Windows 2000 deploys a signaled QoS architecture to provide QoS on an as-needed basis and to clear bandwidth for any other type of traffic when QoS is not in use for priority transmission. In this way, different types of network traffic can coexist. Configured QoS reserves bandwidth, whether needed or not, and wastes network resources that otherwise might be available to other types of traffic.
The use of a signaled QoS architecture also provides real-time feedback based on current network conditions, support for admission control, and topology awareness by using RSVP messages that flow from device to device, coordinating the allocation of resources and establishing a QoS reservation along the data path.