With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cisFastBlockEnabled
Cisco IGMP Snooping Fast Block Enabled
1.3.6.1.4.1.9.9.263.1.1.5
The object indicates whether Fast-Block mechanism has been enabled for the system. This object only has effect if the value of cisV3ProcessEnabledOperStatus is 'true'.
Back to CISCO-IGMP-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor cisFastBlockEnabled on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.