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# Providing QoS for Triple Play Traffic on E Series Routers, Release 11.3.0

By configuring quality of service (QoS) in a triple-play network, service providers can optimize bandwidth and prevent network latency and jitter in the data, voice, and video services that they offer to subscribers.

This page provides information about the JunosE software features that you can use to configure QoS for triple-play networks on E-series routers. In particular, this page focuses on configuring queuing and shaping properties for Ethernet interfaces using QoS parameters.

- Overview
- Configuration
- Administration
- Troubleshooting

How JunosE QoS Works
QoS on the E Series Router Overview QoS Features QoS Audience QoS Terms QoS References
Hardware and Memory Requirements
QoS Platform Considerations Memory Requirements for Queue and Buffers Managing System Resources for Nodes and Queues Scaling Subscribers on the TFA ASIC with QoS
Classifying, Queuing, and Dropping Triple Play Traffic
Traffic Class and Traffic-Class Groups Overview Queuing and Buffer Management Overview Dropping Behavior Overview
QoS Statistics
QoS Statistics Overview
Scheduling and Shaping Triple Play Traffic
Scheduler Hierarchy Overview Shared Shaping Overview How Shared Shaping Works Simple Shared Shaping Overview Simple Shared Shaping Algorithm Overview QoS Parameter Overview
Multicast Bandwidth and Byte Adjustment of Triple Play Traffic
Hierarchical QoS Parameters Overview IP Multicast Bandwidth Adjustment for QoS Overview Byte Adjustment for ADSL and VDSL Traffic Overview
Ethernet Interface Solutions for Triple Play Traffic
Providing QoS for Ethernet Overview QoS Shaping Mode for Ethernet Interfaces Overview QoS for 802.3ad Link Aggregation Interfaces Overview Hashed Load Balancing for 802.3ad Link Aggregation Groups Overview Subscriber Load Balancing for 802.3ad Link Aggregation Groups Overview

Configuration Overview
Configuring QoS on the E Series Router
Configuration Tasks for Classifying, Queuing, and Dropping Triple Play Traffic
Configuring Traffic Classes That Define Service Levels Configuring Traffic-Class Groups That Define Service Levels Configuring Queue Profiles to Manage Buffers and Thresholds Configuring WRED
Configuration Tasks for Scheduling and Shaping Triple Play Traffic
Configuring a Scheduler Hierarchy Configuring Strict-Priority Scheduling Configuring Relative Strict-Priority Scheduling for Aggregate Shaping Rates Configuring a QoS Profile Attaching a QoS Profile to an Interface
Configuration Tasks for QoS on Ethernet Interfaces
Creating a QoS Interface Hierarchy for Bulk-Configured VLAN Subinterfaces with RADIUS Configuring the Scheduler Hierarchy for Hashed Load Balancing in 802.3ad Link Aggregation Groups Enabling Default Subscriber Load Balancing for 802.3ad Link Aggregation Groups Configuring the Scheduler Hierarchy for Subscriber Load Balancing in 802.3ad Link Aggregation Groups Configuring Load Rebalancing for 802.3ad Link Aggregation Groups
Configuration Tasks for Hierarchical and Multicast Bandwidth Adjustment
Configuring a Basic Parameter Definition for QoS Administrators Configuring a Parameter Definition to Calculate Hierarchical Instances Configuring a Parameter Definition for IP Multicast Bandwidth Adjustment Configuring a Parameter Definition to Shape Ethernet Traffic Using Cell Mode Configuring a Parameter Definition for QoS Downstream Rate Creating Parameter Instances
Configuration Tasks for Statistics Collection
Configuring Statistic Profiles for QoS Configuring Rate Statistics Configuring Event Statistics
Examples
Example: QoS Parameter Configuration for Controlling Subscriber Bandwidth for a Triple Play Service Example: QoS Parameter Configuration for IP Multicast Bandwidth Adjustment Example: QoS Parameter Configuration for QoS Downstream Rate Example: QoS Parameter Configuration for Hierarchical Parameters
Configuration Commands
average-length-exponent buffer-weight committed-length committed-threshold conformed-fraction conformed-length conformed-threshold controlled-interface-type drop-profile exceeded-fraction exceeded-length exceeded-threshold fabric-strict-priority fabric-weight instance-interface-type load-rebalance member-interface node qos-parameter qos-parameter-define qos-port-type-profile qos-profile qos-shaping-mode queue queue-profile scheduler-profile shaping-rate shared-shaping-constituent shared-shaping-rate traffic-class traffic-class-group

Monitoring QoS Statistics
Monitoring Queue Statistics for the Fabric Clearing QoS Statistics on the Egress Queue Clearing QoS Statistics on the Fabric Queue
Monitoring QoS on Interfaces
Monitoring the QoS Configuration of Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet Interfaces Monitoring the QoS Configuration of IEEE 802.3ad Link Aggregation Group Bundles
Monitoring Traffic Classification and Queuing
Monitoring Service Levels with Traffic Classes Monitoring Service Levels with Traffic-Class Groups Monitoring Queues and Buffers Monitoring Queue Thresholds
Monitoring Scheduling
Monitoring the Configuration of Scheduler Profiles Monitoring Shared Shapers Monitoring the QoS Scheduler Hierarchy Monitoring the Configuration of QoS Profiles Monitoring the QoS Profiles Attached to an Interface Monitoring a Scheduler Hierarchy on an Interface with QoS Profiles
Monitoring QoS Parameters
Monitoring QoS Parameter Definitions Monitoring QoS Parameter Instances
Statistics-Gathering Commands
clear egress-queue clear fabric-queue committed-drop-threshold conformed-drop-threshold exceeded-drop-threshold forwarding-rate-threshold rate-period statistics-profile
Monitoring Commands
show aaa qos downstream-rate show drop-profile show interfaces (fastEthernet, gigabitEthernet, tenGigabitEthernet) show qos interface-hierarchy show qos-parameter show qos-parameter-define show qos-profile show qos queue-thresholds show qos scheduler-hierarchy show qos shared-shaper show scheduler-profile show statistics-profile show traffic-class show traffic-class-group

Troubleshooting Egress Queues
Troubleshooting Memory and Processor Use for Egress Queue Rate Statistics and Events
Knowledge Base
Juniper Knowledge Base

## Documentation Search

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## Downloads

- JunosE Quality of Service Configuration Guide, Release 11.3.0
- Broadband Network Architectures: Designing and Deploying Triple Play Services

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