Multiple Rps Configured In A Pim Domain - Cisco Nexus 7000 Series Configuration Manual

Multiple RPs Configured in a PIM Domain

Figure 15: Auto-RP Mechanism
By default, routers are not enabled to listen or forward Auto-RP messages. You must enable the Auto-RP
listening and forwarding feature so that the Auto-RP mechanism can dynamically inform routers in the PIM
domain of the group-to-RP mapping.
Note
Auto-RP is not supported for PIM6.
For information about configuring Auto-RP, see Configuring Auto-RP.
Multiple RPs Configured in a PIM Domain
This section describes the election process rules when multiple RPs are configured in a PIM domain.
PIM BSR Bootstrap/Auto-RP Mapping-Agent Election Process
This section describes the BSR bootstrap Auto-RP mapping-agent election process.
Bootstrap Router (BSR) Election Process Details
• If the BSR priorities are different, the BSR with the highest priority (highest numerical value) is elected
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as the BSR router for the PIM domain (see configuration example 1).
• Configuration example 1—Different BSR-candidate priorities: In this example, the system elects
the device labeled N7K-1 as the BSR candidate for the PIM domain because it has the highest
priority. The device labeled N7K-2 has the default priority of 64.
Configuring PIM and PIM6