Technical Documentation

Providing QoS for Triple Play Traffic on E Series Routers, Release 11.2.0

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.

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

Published: 2010-06-30

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