With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
srpHostCurMcastLowPriOctetsOut
srp Host Cur Mcast Low Pri Octets Out
1.3.6.1.4.1.9.10.60.3.1.1.13
The counter associated with the number of total multicast octets going to the Higher Layer in the current 15 minute interval.
Back to CISCO-SRP-MIB MIB page.
IPHost Network monitor allows you to monitor srpHostCurMcastLowPriOctetsOut on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.