Creating a Multicast Flow Map

Multicast flow maps enable you to manage a subset of multicast forwarding table entries. For example, you can specify that certain forwarding cache entries be permanent or have a different timeout value from other multicast flows that are not associated with the flow map policy.

Creating a Flow Map Policy

The following example creates a flow map policy called policyForFlow1. In this example, the policy statement matches the source address using the source-address-filter statement and matches the group address using the prefix-list-filter.

Note: The addresses must match the configured policy for flow mapping to occur.

For additional information about creating policy statements, see the Junos Policy Framework Configuration Guide.

Defining Flow Maps

This example defines a flow map called flowMap1 with permanent forwarding entries (that is, the entries never time out).