With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ibmappnMemoryWarnThresh
IBM APPN Memory Warn Threshold
1.3.6.1.4.1.2.6.2.13.1.7.3
Allocation threshold beyond which storage management considers the storage resources to be constrained.
Back to ibm-mem MIB page.
IPHost Network monitor allows you to monitor ibmappnMemoryWarnThresh 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.