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RMX 2000 Administrator's Guide - Polycom Support

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Chapter 12-Network Services<br />

12-22<br />

9 If required, click the QoS tab.<br />

Quality of Service (QoS) is important when transmitting high<br />

bandwidth audio and video information. QoS can be measured and<br />

guaranteed in terms of:<br />

• Average delay between packets<br />

• Variation in delay (jitter)<br />

• Transmission error rate<br />

DiffServ and Precedence are the two QoS methods supported by the<br />

<strong>RMX</strong>. These methods differ in the way the packet’s priority is<br />

encoded in the packet header.<br />

<strong>RMX</strong>’s implementation of QoS is defined per Network Service, not<br />

per endpoint.

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