With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pimInterfaceCBSRPreference
pim Interface CBSR Preference
1.3.6.1.3.61.1.1.2.1.9
The preference value for the local interface as a candidate bootstrap router. The value of -1 is used to indicate that the local interface is not a candidate BSR interface.
Back to PIM-MIB MIB page.
IPHost Network monitor allows you to monitor pimInterfaceCBSRPreference on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.