Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010 Configuration Manual page 307

The QoS scheduler hierarchy is constructed when the subscriber logs on. However,
because the parameter instance has not yet been created, the shared-shaping rate
is undefined (that is, there is no shaping rate).
Therefore, the QoS administrator creates a global parameter instance to shape the
subscriber to the desired bandwidth. The initial value is determined based on the
application; in this example, the QoS administrator specifies 0 as the default.
1.
2.
3.
Therefore, the initial shared-shaping rate is 10 Mbps (10 Mbps - ipm value of 0).
The QoS administrator configures the scheduler profile for the ATM VC subscriber
Reference the
and configures the shared-shaping rate. When a scheduler profile references the
Parameter Definition
parameter instance, it enables the IP multicast bandwidth adjustment application to
Within a Scheduler
adjust the subscriber bandwidth to account for the video traffic.
Profile
The QoS administrator then configures the scheduler profile to shape voice traffic.
1.
2.
The IP multicast adjustment application is initialized when IGMP joins or leaves. The
Adding the Scheduler
QoS administrator specifies the scheduler hierarchy by using a QoS profile rule that
Profiles to a QoS Profile
refers to a scheduler profile with a parameter expression.
Chapter 27: Configuring IP Multicast Bandwidth Adjustment with QoS Parameters
Configure the QoS parameter definition ipm, associate it with the ip-multicast
application, and assign it as a hierarchical parameter.
Configure a controlled-interface type of atm-vc.
Configure the global parameter instance.
host1(config)#qos-parameter-define ipm application ip-multicast hierarchical
host1(config-qos-parameter-define)#controlled-interface-type atm-vc
host1(config-qos-parameter-define)#exit
host1(config)#qos-parameter ipm 0
Configure the scheduler profile for the ATM VC subscriber.
a. Configure the scheduler profile named vc-subscriber.
b. Configure the shared-shaping rate by referencing an expression to limit the
subscriber bandwidth to 10 Mbps.
host1(config)#scheduler-profile vc-subscriber
host1(config-scheduler-profile)#shared-shaping-rate 10000000 - ipm burst
50 milliseconds auto
host1(config-scheduler-profile)#exit
Configure the scheduler profile for shaping voice traffic.
a. Configure the scheduler profile named 192K.
b. Configure the shaping rate at 1920000.
host1(config)#scheduler-profile 192K
host1(config-scheduler-profile)#shaping rate 192000
host1(config-scheduler-profile)#exit
Example: QoS Parameter Configuration for IP Multicast Bandwidth Adjustment
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