With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniDTLTable
pnni DTL Table
1.3.6.1.4.1.353.5.4.1.1.19.3
The set of all DTL stacks used for the pre-computed routes maintained by this managed entity.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniDTLTable 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.