Configure a Candidate Bootstrap Router

Configure routers as candidate bootstrap routers (C-BSR) to provide backup protection in case the primary BSR fails. PIM-SM cannot operate without a BSR. A PIM-SM domain can use only one active BSR.

About this task

The C-BSR with the highest configured priority becomes the BSR for the domain. If two C-BSRs use equal priority, the candidate with the higher IP address becomes the BSR. If you add a new C-BSR with a higher priority to the domain, it automatically becomes the new BSR.

Procedure

  1. On the Device Physical View tab, select a port.
  2. In the navigation pane, expand Configuration > Edit > Port.
  3. Select IP.
  4. Select the PIM tab.
  5. Select Enable.
  6. Type the preference in the CBSRPreference field.

    The C-BSR with the highest BSR-preference and address becomes the active BSR. The default is –1, which indicates that the current interface is not a C-BSR.

  7. Select Apply.
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