Enabling the state refresh feature
In a PIM-DM domain, the state refresh feature enables the PIM router that is directly connected to the source to periodically send state refresh messages. It also enables other PIM routers to refresh pruned state timers after receiving the state refresh messages. It prevents the pruned interfaces from resuming multicast forwarding. You must enable this feature on all PIM routers on a subnet.
To enable the state refresh feature on all routers in PIM-DM domain:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Enable the state refresh feature. | pim state-refresh-capable | By default, the state refresh feature is enabled. |