Configuring the switchover to SPT
Restrictions and guidelines
Some devices cannot encapsulate IPv6 multicast data in register messages destined to the RP. As a best practice to avoid IPv6 multicast data forwarding failures, do not disable the switchover to SPT on C-RPs that might become the RP.
Procedure
Enter system view.
system-view
Enter IPv6 PIM view.
ipv6 pim [ vpn-instance vpn-instance-name ]
Configure the switchover to SPT.
spt-switch-threshold { immediacy | infinity } [ group-policy ipv6-acl-number ]
By default, the first IPv6 multicast data packet triggers the RPT to SPT switchover.