The parameters such as the maximum message size and number of (S, G) entries, and the message package function can be configured for PIM Join/Prune messages.
pim [ vpn-instance vpn-instance-name ]
join-prune max-packet-length packet-length
The default size is 8100 bytes.
join-prune periodic-messages queue-size queue-size
The default value is 1020.
join-prune triggered-message-cache disable
This function is enabled by default.