Adjusting Graft Control Parameters
Context
To quickly resume multicast forwarding to a pruned network segment, the router sends a Graft message to its upstream neighbor and starts a timer on the upstream interface. If the router does not receive multicast data when the timer expires, it sends another Graft message to the upstream neighbor.
Procedure
- Run system-view
The system view is displayed.
- Run interface interface-type interface-number
The interface view is displayed.
- Run pim ipv6 timer graft-retry interval
The retransmission interval of Graft messages is configured.
Verifying the Configuration
After adjusting the retransmission interval of Graft messages on an interface, check IPv6 PIM-DM graft information and IPv6 PIM information on the interface to see whether the configuration meets the service requirements.
Run the display pim ipv6 interface [ interface-type interface-number | up | down ] [ verbose ] command in any view to check IPv6 PIM information on an interface.
Run the display pim ipv6 grafts command to check information about IPv6 PIM-DM Graft messages that have not been acknowledged by the upstream neighbor.