With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniSummaryPrefixLength
pnni Summary Prefix Length
1.3.6.1.4.1.353.5.4.1.1.7.1.2
The prefix length for the summary.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniSummaryPrefixLength on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.