Configuring a Parameter Definition for IP Multicast Bandwidth Adjustment

Before you configure a parameter definition for IP multicast bandwidth:

• Define a multicast bandwidth map and the QoS adjustment for a virtual router.

  See JUNOSe Multicast Routing Configuration Guide.

To associate a parameter instance with the IP multicast bandwidth adjustment application:

1. Configure traffic classes.

   host1(config)#traffic-class voice

   host1(config-traffic-class)#exit

   host1(config)#traffic-class best-effort

   host1(config-traffic-class)#exit

2. Create a parameter definition.
   1. Configure the QoS parameter name and the application.

      host1(config)#qos-parameter-define ipm application ip-multicast hierarchical

   2. Configure a controlled-interface type.

      host1(config-qos-parameter-define)#controlled-interface-type vlan

      host1(config-qos-parameter-define)#exit

3. Create a parameter instance that globally defines the value of the IP multicast adjustment as 0.

   host1(config)#qos-parameter ipm 0

4. Reference the parameter within a scheduler profile parameter expression.

   host1(config)#scheduler-profile vlan-subscriber

   host1(config-scheduler-profile)#shared-shaping-rate 1000000 - ipm burst 50 milliseconds auto

   host1(config-scheduler-profile)#exit

5. Add the scheduler profile to a QoS profile.

   host1(config)#qos-profile vlan-subscriber

   host1(config-qos-profile)#vlan queue traffic-class best-effort

   host1(config-qos-profile)#vlan queue traffic-class voice scheduler-profile 192k

   host1(config-qos-profile)#vlan node scheduler-profile vlan-subscriber

   host1(config-qos-profile)#exit

6. Attach the parameter definition to a logical interface.

   host1(config)#interface gigabitEthernet 7/0

   host1(config-if)#encapsulation vlan

   host1(config-if)#exit

   host1(config)#interface gigabitEthernet 7/0.1

   host1(config-if)#vlan id 200

   host1(config-if)#qos-profile vlan-subscriber

   host1(config-if)#ip address 1.1.1.1 255.255.255.0

After the QoS profile is attached to the interface, the IP multicast bandwidth adjustment application begins to adjust rates based on IGMP joins and leaves received on that interface.

Related Topics

• IP Multicast Bandwidth Adjustment for QoS Overview
• Example: QoS Parameter Configuration for IP Multicast Bandwidth Adjustment
• controlled-interface-type command
• encapsulation vlan command
• interface gigabitEthernet command
• node command
• qos-parameter-define command
• qos-profile command
• queue command
• scheduler-profile command
• shared-shaping-rate command
• traffic-class command
• vlan id command

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