Adjusting C-RP Parameters
A Candidate-Rendezvous Point (C-RP) periodically sends a BootStrap router (BSR) Advertisement messages that carry the C-RP's priority information. You can adjust the priority of a C-RP, interval for sending Advertisement messages, and timeout period of an Advertisement message sent by a device that has C-RPs configured.
Context
RP election rules are as follows:
- The C-RP with the highest priority wins.
- If C-RPs have the same priority, hash functions are started. The C-RP that has the greatest calculated value wins.
- If the preceding rules cannot determine an RP, the C-RP with the highest address wins.
Procedure
- Run system-view
The system view is displayed.
- Run pim-ipv6
The IPv6 PIM view is displayed.
- Run c-rp priority priority
The global priority is set for a C-RP.
A higher priority value indicates a lower priority.
- Run c-rp advertisement-interval interval
The interval at which a C-RP sends Advertisement messages is set.
- Run c-rp holdtime interval
The period during which a BSR keeps the Advertisement message from a C-RP is set.
The period during which a BSR keeps the Advertisement message from a C-RP must be longer than the interval at which a C-RP sends Advertisement messages.
C-RPs periodically send Advertisement messages to the current BSR. The BSR extracts Holdtime from the messages and starts a timer. If the BSR does not receive any Advertisement message from a C-RP within the timeout period of the timer, the BSR considers the C-RP invalid or inaccessible.
- Run commit
The configuration is committed.