Configuring the TTL Value Carried in a State-Refresh Message
After receiving the PIM State-Refresh message, a multicast device decrements the TTL value by 1 and then forwards the message downstream until the TTL value becomes 0. In a small-sized network, the PIM State-Refresh message is transmitted circularly on the network. You can adjust the TTL value according to the network scale.
Prerequisites
Before adjusting control parameters for prune, complete the following tasks:
Configuring a unicast routing protocol
Procedure
- Access the system view.
- Access the PIM view.
pim [ vpn-instance vpn-instance-name ]
- Set the TTL value carried in the State-Refresh message.
state-refresh-ttl ttl-value
This command is valid only on the FW directly connected to the multicast source.