With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ibmLeServerXLecsUsedConnections
ibm Le Server X Lecs Used Connections
1.3.6.1.4.1.2.5.8.3.1.2.1.2
The number of virtual connections currently in use by this LECS instance.
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IPHost Network monitor allows you to monitor ibmLeServerXLecsUsedConnections on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM Flex systems right now.