With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpimExtIfMaxGraftRetries
cpim Ext If Max Graft Retries
1.3.6.1.4.1.9.10.120.1.1.1.1.9
The maximum number of times this router will resend a Graft on this interface.
Back to CISCO-IETF-PIM-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cpimExtIfMaxGraftRetries on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.