Avaya Configuring IP Multicasting and Multimedia Services Manual do Utilizador descarregar pdf (Página 191)

100

101

Customizing Protocol Independent Multicast

117355-D Rev 00

6-5

For information about customizing C-RP configuration parameters, see

“Modifying the Candidate RP Configuration

” on page 6-26.

Bootstrap Router

The bootstrap router (BSR) receives RP advertisement messages from the C-RPs

and adds the RP with its group prefix to the RP set. The BSR periodically sends

the RP set in bootstrap messages to all routers in the PIM domain. The BSR

ensures that all PIM routers learn which RP to send PIM join/prune and register

packets to. Only one BSR exists for each PIM domain.

For information about configuring a router as a BSR, see “Starting PIM” on page

2-7.

Candidate Bootstrap Routers

Within a PIM domain, you can configure a small set of routers as candidate BSRs.

PIM elects the C-BSR with the highest configured priority as the BSR for the

domain. If two C-BSRs have equal priority, then PIM elects the C-BSR with the

higher IP address as the BSR for the domain. When you add a new C-BSR with a

higher priority to the domain, a new BSR is elected automatically.

For information about customizing BSR configuration parameters, see

“Modifying the Candidate BSR Configuration

” on page 6-25.

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