With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pimComponentTable
pim Component Table
1.3.6.1.3.61.1.1.12
The (conceptual) table containing objects specific to a PIM domain. One row exists for each domain to which the router is connected. A PIM-SM domain is defined as an area of the network over which Bootstrap messages are forwarded. Typically, a PIM-SM router will be a member of exactly one domain. This table also supports, however, routers which may form a border between two PIM-SM domains and do not forward Bootstrap messages between them.
Back to PIM-MIB MIB page.
IPHost Network monitor allows you to monitor pimComponentTable 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.