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Configuring Multicast Scoping

To configure multicast address scoping, include the following statements:




multicast {



scope scope-name { 

interface [ interface-names ]; 

prefix destination-prefix;
}


scoping-policy policy-name;
}

For a list of hierarchy levels at which you can configure these statements, see the statement summary sections for these statements.

Specify a name for the scope, its address range, and the router interfaces on which you are configuring scoping.

You can apply a multicast scoping policy to the routing table. To apply a scoping policy, include the scoping-policy statement at the [edit routing-options multicast] hierarchy level. For more information on configuring a scoping policy, see the JUNOS Policy Framework Configuration Guide.

Example: Configuring Multicast Scoping

Configure multicast scoping by creating four scopes: local, organization, engineering, and marketing.

Configure the local scope on a Fast Ethernet interface. Configure the organization scope on a Fast Ethernet and a SONET/SDH interface. Configure the engineering and marketing scopes on two SONET/SDH interfaces.



[edit]
routing-options {


multicast {


scope local {
prefix 239.255.0.0/16;
fe-0/1/0.0;
}




scope organization {
prefix 239.192.0.0/14;
interface [ fe-0/1/0.0 so-0/0/0.0 ];
}




scope engineering {
prefix 239.255.255.0/24;
interface [ so-0/0/1.0 so-0/0/2.0 ];
}




scope marketing {
prefix 239.255.254.0/24;
interface [ so-0/0/1.0 so-0/0/2.0 ];
}


}


}

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