With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniSummaryLgnGroup
pnni Summary Lgn Group
1.3.6.1.4.1.353.5.4.1.2.2.10
A collection of PNNI objects required for controlling address summarization.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniSummaryLgnGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.