The ssm-mapping policy command configures an IPv4 SSM mapping policy.
Using the undo ssm-mapping policy command deletes an IPv4 SSM mapping policy.
By default, no IPv4 SSM mapping policy is configured.
Usage Scenario
When users connected to different interfaces want to watch programs multicast by different multicast sources, run the ssm-mapping policy command to configure different SSM mapping policies on different interfaces. After that, IGMP packets received by different interfaces can be mapped to different multicast sources and users' requirements can be answered.
Prerequisites
SSM mapping and a corresponding policy have been enabled on the interface using the igmp ssm-mapping enable command.
When an IPv4 SSM mapping policy is deleted, all the configuration information of the policy will be deleted.