This document describes the Cisco IOS XR Quality of Service (QoS) feature for prioritizing traffic flow and providing preferential forwarding for higher-priority packets. The QoS techniques described include allocating bandwidth, improving loss characteristics, avoiding and managing network congestion, metering network traffic, and setting traffic-flow priorities across the network.
For QoS command descriptions, usage guidelines, and examples, refer to the Cisco IOS XR Modular Quality of Service Command Reference for the Cisco XR 12000 Series Router .
The preface contains the following sections:
The following table lists the technical changes made to this document.
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No new QoS features were introduced for the Cisco XR 12000 Series Router in Release 4.1. |
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