Disabling the device from forwarding BSMs out of their incoming interfaces
About disabling the device from forwarding BSMs out of their incoming interfaces
By default, the device forwards BSMs out of their incoming interfaces. This default setting ensures that all devices on the subnet can receive BSMs even when they have inconsistent routing information. However, this default setting results in duplicated multicast traffic. If you are sure that all the devices on the subnet have consistent routing information, you can disable the device from forwarding BSMs out of their incoming interfaces.
Procedure
Enter system view.
system-view
Enter PIM view.
pim [ vpn-instance vpn-instance-name ]
Disable the device from forwarding BSMs out of their incoming interfaces.
undo bsm-reflection enable
By default, the device forwards BSMs out of their incoming interfaces.