Pim Rp Versus Rp Election Process - Cisco Nexus 7000 Series Configuration Manual

Configuring PIM and PIM6
Verification for N7K-1:
show ip pim rp
PIM RP Status Information for VRF "default"
BSR disabled
Auto-RP RPA: 192.168.2.1, next Discovery message in: 00:00:52
Verification for N7K-2:
show ip pim rp
PIM RP Status Information for VRF "default"
BSR disabled
Auto-RP RPA: 192.168.2.1*, next Discovery message in: 00:00:47

PIM RP versus RP Election Process

This table shows the process that the system uses to select the RP for a multicast group if multiple RPs are
configured in the network using BSR, Auto-RP, or static RP configurations.
BSR-RP vs. BSR-RP
1. Most specific RP
group-list
2. Lowest RP priority
3. Highest RP IP address
Note BSR-RP versus Auto-RP is not listed in this table because we recommend that you do not run both
simultaneously in the same network.
PIM BSR RP-Candidate Versus BSR RP-Candidate Election Process
• The BSR RP-candidate with the most specific group list is elected as the RP for any multicast addresses
BSR-RP vs. Static RP
1.Most specific RP
group-list
2. Highest RP IP address
—
specified in its configured group list. The most specific group list takes priority over the BSR RP-candidate
priority and the highest BSR RP-candidate IP address (see configuration example 1).
• Configuration example 1—Most specific group list: In this example, the system elects the device
labeled N7K-1 as the RP for all multicast addresses specified in the 224.1.1.0/24 group-list. The
system elects the device labeled N7K-2 for the multicast addresses within the less specific 224.0.0.0/4
group list.
Auto-RP vs. Auto- RP
1. Most specific RP
group-list
2. Highest RP IP address
—
Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide
PIM RP versus RP Election Process
Auto-RP vs. Static RP
1. Most specific RP
group-list
2. Highest RP IP address
—
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