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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Adjusting C-RP Parameters

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.


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.


  1. Run system-view

    The system view is displayed.

  2. Run pim-ipv6

    The IPv6 PIM view is displayed.

  3. Run c-rp priority priority

    The global priority is set for a C-RP.

    A higher priority value indicates a lower priority.

  4. Run c-rp advertisement-interval interval

    The interval at which a C-RP sends Advertisement messages is set.

  5. 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.

  6. Run commit

    The configuration is committed.

Updated: 2019-01-03

Document ID: EDOC1100055017

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