(S, G) entry is not generated on the S series switch configured with IGMP SSM mapping

The switch interface is enabled with SSM mapping and IGMP, and is configured with a static SSM mapping policy. After the interface receives IGMPv1 or IGMPv2 Report messages, no corresponding (S, G) entry exists in the FIB table.
A: When a querier receives an IGMPv1 or IGMPv2 (*, G) Report message, the querier checks G. When G is in the SSM group address range and the host is configured with G-related SSM mapping rules, the switch converts (*, G) to (G, Include, (S1, S2, S3�?), implementing SSM mapping.
Possible causes are as follows:
G in the (*, G) Report message is not in the SSM group address range. Run the display this command in the PIM view to check the configuration. If the command output shows the ssm-policy basic-acl-number or ssm-policy acl-name acl-name command, the SSM group address range is defined on the device.
Run the display acl command to check the ACL configuration. Ensure that G is in the SSM group address range. By default, the SSM group address range is 232.0.0.0/8.
- The SSM mapping rules related to G in the (*, G) Report message are not configured. Run the display igmp ssm-mapping interface interface-type interface-number command to check the SSM mapping rules configured on the device and check whether the source address of G is specified. Check whether the group address configured with SSM mapping rules is in the SSM group address range.

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