With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniRouteAddrPrefixLength
pnni Route Address Prefix Length
1.3.6.1.4.1.353.5.4.1.1.19.4.1.2
The prefix length to be applied to the ATM End System Address prefix.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniRouteAddrPrefixLength 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.