Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Configuration Manual

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Figure 63: Scheduler Hierarchy with QoS Adjustment for IP Multicast
Configuring Traffic
Classes and
Traffic-Class Groups
The QoS administrator configures the traffic classes and traffic-class groups for
best-effort data and voice services. The QoS administrator does not need to configure
a traffic class for the video service because it is transmitted through the IP multicast
connection.
1.
Configure the traffic classes.
a. Configure the traffic class named best-effort.
b. Configure the traffic class named voice.
host1(config)# traffic-class voice
host1(config-traffic-class)# exit
host1(config)# traffic-class best-effort
host1(config-traffic-class)# exit
2.
Configure a traffic-class group for low-latency expedited forwarding (EF) and add
the traffic class for voice service into the traffic-class group EF.
a. Configure the EF traffic-class group with strict-priority scheduling.
b. Add the traffic class voice to the traffic-class group.
host1(config)# traffic-class-group EF auto-strict-priority
host1(config-traffic-class-group)# traffic-class voice
host1(config-traffic-class-group)# exit
The remaining traffic class, best-effort, remains in the default traffic-class
group.
Configuring the QoS
Parameter Definition and
The QoS administrator configures the QoS parameter definition and specifies the IP
multicast bandwidth adjustment application. The QoS administrator must configure
the parameter as hierarchical.
Global Parameter
Instance
274 ■
Example: QoS Parameter Configuration for IP Multicast Bandwidth Adjustment
JUNOSe 11.1.x Quality of Service Configuration Guide