With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cswmLtlUsed
cswm Ltl Used
1.3.6.1.4.1.9.9.504.1.5.1
This object indicates the number of Multicast LTL entries currently used by this device.
Back to CISCO-SWITCH-MULTICAST-MIB MIB page.
IPHost Network monitor allows you to monitor cswmLtlUsed on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.