With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cisSourceOnlyEntryAgingTime
Cisco IGMP Snooping Source Only Entry Aging Time
1.3.6.1.4.1.9.9.263.1.1.17
This object specifies the aging time in seconds for Source Only multicast entries when cisSourceOnlyLearningEnabled is set to 'true'. When cisSourceOnlyEntryAgingTime is set to 0, aging is disabled.
Back to CISCO-IGMP-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor cisSourceOnlyEntryAgingTime 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.