Configuring the Interval for Sending State-Refresh Messages

To prevent pruned interfaces from forwarding messages after the prune state timer times out, you need to set the interval for sending State-Refresh messages to be shorter than the period for keeping the Prune state.

Prerequisites

Before adjusting control parameters for prune, complete the following tasks:

Configuring a unicast routing protocol
Configuring Basic PIM-DM Functions

Procedure

Access the system view.
system-view
Access the PIM view.
pim [ vpn-instance vpn-instance-name ]
Set the interval for sending PIM State-Refresh messages.
state-refresh-interval interval
- This command is applicable to the first-hop device connecting to the multicast source.
- The interval for sending PIM State-Refresh messages should be shorter than the timeout period for keeping the Prune state.
- You can run the holdtime join-prune command to set the timeout period for keeping the Prune state.