With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
lecVccTimeoutPeriod
LAN Emulation Client Virtual Channel Connection Timeout Period
1.3.6.1.4.1.353.5.3.1.1.1.1.12
C12 VCC Time-out Period. A LE Client SHOULD release any Data Direct VCC that it has not used to transmit or receive any data frames for the length of the VCC Time-out Period. This parameter is only meaningful for SVC Data Direct VCCs signalled with the Ethernet/IEEE 802.3 LE Data Direct VCC B-LLI value or the IEEE 802.5 LE Data Direct VCC B-LLI value. It should not be used for any SVC signalled with the LLC-Multiplexed B-LLI value. This time value is expressed in seconds. The default value is 20 minutes. A value of 0 seconds means that the timeout period is infinite. Negative values will be rejected by the agent.
Back to ibm-lec MIB page.
IPHost Network monitor allows you to monitor lecVccTimeoutPeriod 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.