With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
lecTlvEntry
LAN Emulation Client Tlv Entry
1.3.6.1.4.1.353.5.3.1.1.13.1
Each table row describes one TLV of a related set.
Back to ibm-lec MIB page.
IPHost Network monitor allows you to monitor lecTlvEntry on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM switches right now.