How to Configure a PIM Neighbor Filtering on Huawei S9300?

Questions:
How to configure PIM Neighbor Filtering on Huawei Quidway S9300?

Answer:
Procedure
Run:system-view,The system view is displayed.
Run:interface interface-type interface-number,The interface view is displayed.
Run:pim neighbor-policy { basic-acl-number | acl-name acl-name },The range of valid neighbor addresses is configured.
Run:pim require-genid,The switch is configured to receive only Hello messages that contain Generation IDs.

NOTE:
If the IP address of a PIM neighbor that has established a neighbor relationship with the switch is not in the configured range of valid neighbor addresses, the switch will no longer receive Hello messages from this PIM neighbor. When the holdtime of Hello messages expires, the neighbor relationship between the PIM device and the switch is terminated.
When configuring an ACL rule for the interface, use the permit parameter to configure the interface to accept only Hello messages with source addresses in a specified range. If no rule is configured in the ACL, the interface discards Hello messages from all source addresses.

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