Additional Cisco Ios Xr Qos Supported Features; Modular Qos Command-Line Interface; Fabric Qos; Where To Go Next - Cisco ASR 9000 Series Configuration Manual

Modular QoS Overview
ANCP allows static mapping between AN ports and VLAN subinterfaces so that DSL rate updates for a
specific subscriber received by the ANCP server are applied to the QoS configuration corresponding to that
subscriber. DSL train rates received via ANCP are used to alter shaping rates on subscriber-facing interfaces
and subinterfaces on the router.

Additional Cisco IOS XR QoS Supported Features

These sections describe the additional features that play an important role in the implementation of QoS on
Cisco IOS XR software.

Modular QoS Command-Line Interface

In Cisco IOS XR software, QoS features are enabled through the Modular QoS command-line interface (MQC)
feature. The MQC is a command-line interface (CLI) structure that allows you to create policies and attach
these policies to interfaces. A traffic policy contains a traffic class and one or more QoS features. A traffic
class is used to classify traffic, whereas the QoS features in the traffic policy determine how to treat the
classified traffic. One of the main goals of MQC is to provide a platform-independent interface for configuring
QoS across Cisco platforms.
For detailed conceptual and configuration information about the MQC feature, see the "Configuring Modular
Quality of Service Packet Classification on Cisco ASR 9000 Series Routers" module in this guide.

Fabric QoS

There is no separate configuration for fabric QoS. The fabric priority is derived from the priority action in
the ingress service policy.

Where to Go Next

To configure the packet classification features that involve identification and marking of traffic flows, see the
Configuring Modular Quality of Service Packet Classification module in this guide.
To configure the queuing, scheduling, policing, and shaping features, see the Configuring Modular Quality
of Service Congestion Management module in this guide.
To configure the WRED and RED features, see the Configuring Modular QoS Congestion Avoidance module
in this guide.
To configure Access Node Control Protocol (ANCP) features, see the "Configuring Access Node Control
Protocol on Cisco ASR 9000 Series Routers" module in this guide.

Additional References

The following sections provide references related to implementing QoS.
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide, Release 6.1.x
Additional Cisco IOS XR QoS Supported Features
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