With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniNodeEntry
pnni Node Entry
1.3.6.1.4.1.353.5.4.1.1.2.1
An entry in the table, containing information about a PNNI logical node in this switching system.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniNodeEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.