The igmp ssm-mapping enable command enables Source-Specific Multicast (SSM) mapping.
The undo igmp ssm-mapping enable command restores the default configuration.
By default, SSM mapping is disabled.
Usage Scenario
The configured SSM source/group address mapping entries take effect only after SSM mapping is enabled on interfaces.
Prerequisites
The multicast routing-enable command has been run in the public network instance view or the VPN instance view.
Precautions
SSM mapping enabled on an interface is irrelevant to the version number of IGMP.