With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoIpMRouteRegisterFlag
cisco Ip M Route Register Flag
1.3.6.1.4.1.9.10.2.1.1.2.1.16
Boolean, indicates whether to send registers for the entry. A first hop router directly connected to a multicast source host, as well as a border router on the boundary of two domains running different multicast routing protocols, encapsulates packets to be sent on the shared tree. This is done until the RP sends Joins back to this router.
Back to CISCO-IPMROUTE-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoIpMRouteRegisterFlag 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.