With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ibmfrBRSInterfaceDefaultCircuitClassName
ibmfr BRS Interface Default Circuit Class Name
1.3.6.1.4.1.2.6.119.4.4.4.1.1.1.5
The name of the circuit class that is considered the default circuit class. It is used for virtual circuits not explicitly assigned to any circuit class.
Back to ibm-ibmfrbrs MIB page.
IPHost Network monitor allows you to monitor ibmfrBRSInterfaceDefaultCircuitClassName on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM computers right now.