With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
nhrpServerNextHopResEntry
nhrp Server Next Hop Resolution Entry
1.3.6.1.3.9999.1.3.2.1
Additional information kept by a NHS for each Next Hop Resolution Cache entry.
Back to ibm-nhrp MIB page.
IPHost Network monitor allows you to monitor nhrpServerNextHopResEntry 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.