With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ibmHprRtDetPriorNode
ibm Hpr Rt Det Prior Node
1.3.6.1.4.1.2.5.10.4.3.1.1.4
The name of the node which is prior to the destination node for this portion of the route test.
Back to ibm-routetst MIB page.
IPHost Network monitor allows you to monitor ibmHprRtDetPriorNode 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.