With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpimExtMRouteNextHopAssertTimer
cpim Ext M Route Next Hop Assert Timer
1.3.6.1.4.1.9.10.120.1.1.5.1.2
The time remaining before the PIM router leaves the current Assert state. A value of 0 indicates that the router is in the No Info state.
Back to CISCO-IETF-PIM-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cpimExtMRouteNextHopAssertTimer on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.