With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cswmLtlUsageGroup
cswm Ltl Usage Group
1.3.6.1.4.1.9.9.504.2.2.6
A collection of objects providing Multicast LTL usage information.
Back to CISCO-SWITCH-MULTICAST-MIB MIB page.
IPHost Network monitor allows you to monitor cswmLtlUsageGroup 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.