With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniNodeDomainName
pnni Node Domain Name
1.3.6.1.4.1.353.5.4.1.1.2.1.7
The name of the PNNI routing domain in which this node participates. All lowest-level PNNI nodes with the same pnniNodeDomainName are presumed to be connected.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniNodeDomainName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.