With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
lecTopologyChange
Lan Emulation Client Topology Change
1.3.6.1.4.1.353.5.3.1.1.2.1.9
C19 Topology Change. Boolean indication that the LE Client is using the Forward Delay Time C18, instead of the Aging Time C17, to age non-local entries in its LE_ARP cache C16. For a client which is not connected to the LES, this object is defined to have the value 'false'.
Back to LAN-EMULATION-CLIENT-MIB MIB page.
IPHost Network monitor allows you to monitor lecTopologyChange 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.
