Configure PIM-SM Bootstrap Router

Configuration Condition

Before configuring BSR, first complete the following tasks:

• Configure the network layer address of the interface, making the neighboring node network layer reachable
• Configure any unicast route protocol, making the intra-domain route reachable
• Enable the PIM-SM protocol

Configure C-BSR

In one PIM-SM domain, there should be the unique BSR. Multiple C-BSRs (Candidate-Bootstrap Router) elects to generate the unique BSR via the bootstrap packet.

Table 7–5 Configure C-BSR

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  BSR election rules:
• Compare the priorities. The larger the value, the higher the priority. The one with highest priority wins.
• If the priority is the same, the one with the largest IP address wins.

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Configure BSR Border

BSR is responsible for collecting the C-RP information and transmits the information to all devices in the PIM-SM domain via the bootstrap packet. The BSR range is the range of the multicast domain. The bootstrap packet cannot pass the interface configured with the BSR border. The devices out of the multicast domain range cannot take part in the forwarding of the multicast service packet in the multicast domain, so as to realize the dividing of the multicast domain.

Table 7–6 Configure the BSR border