With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoIetfPimExtNbrGroup
cisco Ietf Pim Ext Neighbor Group
1.3.6.1.4.1.9.10.120.2.2.2
A collection of objects to support management of PIM neighbors
Back to CISCO-IETF-PIM-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoIetfPimExtNbrGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.