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QC-29

Cisco IOS XR Modular Quality of Service Configuration Guide

Configuring Modular Quality of Service

Congestion Management on Cisco IOS XR

Software

Congestion management controls congestion after it has occurred on a network. Congestion can be

managed on Cisco IOS XR software by using packet queueing methods, and by shaping the packet flow

through use of traffic regulation mechanisms.

Packet queueing methods define packet scheduling or the order in which packets are dequeued to the

interface for transmission on the physical wire. Furthermore, queueing methods support minimum

bandwidth guarantees and low latencies based on the order and number of times that a queue is serviced.

The following types of queueing methods and traffic regulation mechanisms are supported on the

Cisco IOS XR software:

• Modified Deficit Round Robin (MDRR)

• Low-latency queueing (LLQ) with strict priority queueing (PQ)

• Traffic shaping

• Traffic policing

This module provides the conceptual and configuration information for Quality of Service (QoS) packet

queueing methods and traffic regulation mechanisms on Cisco IOS XR software.

Note For additional conceptual information about QoS in general and complete descriptions of the QoS

commands listed in this module, see the “Related Documents” section of this module. To locate

documentation for other commands that might appear in the course of executing a configuration task,

search online in the Cisco IOS XR software master command index.

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Resumo do Conteúdo

Página 1 - Software

QC-29Cisco IOS XR Modular Quality of Service Configuration Guide Configuring Modular Quality of Service Congestion Management on Cisco IOS XR Software

Página 2 - Cisco IOS XR Software

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 3 - Modified Deficit Round Robin

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 4

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 5 - Traffic Shaping

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 6 - Traffic Policing

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 7 - Value Setting

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 8

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 9

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 10 - Restrictions

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

Página 11

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareConfiguration Examples for Configuring QoS Congestion Management

Página 12

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareContentsQC-30Cisco IOS XR Modular Quality of Service Configuratio

Página 13 - DETAILED STEPS

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareConfiguration Examples for Configuring QoS Congestion Management

Página 14 - Configuring Traffic Shaping

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareWhere to Go NextQC-49Cisco IOS XR Modular Quality of Service Conf

Página 15

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareAdditional ReferencesQC-50Cisco IOS XR Modular Quality of Service

Página 16

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareAdditional ReferencesQC-51Cisco IOS XR Modular Quality of Service

Página 17 - Configuring Traffic Policing

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareAdditional ReferencesQC-52Cisco IOS XR Modular Quality of Service

Página 18 - Example:

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareInformation About Configuring QoS Congestion Management on Cisco

Página 19

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareInformation About Configuring QoS Congestion Management on Cisco

Página 20

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareInformation About Configuring QoS Congestion Management on Cisco

Página 21 - Where to Go Next

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareInformation About Configuring QoS Congestion Management on Cisco

Página 22 - Additional References

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareInformation About Configuring QoS Congestion Management on Cisco

Página 23 - Technical Assistance

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareInformation About Configuring QoS Congestion Management on Cisco

Página 24

Configuring Modular Quality of Service Congestion Management on Cisco IOS XR SoftwareHow to Configure QoS Congestion Management on Cisco IOS XR Softwa

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