With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniRouteAddrTable
pnni Route Address Table
1.3.6.1.4.1.353.5.4.1.1.19.4
A table containing all the attributes necessary to determine what the PNNI entity believes is reachable in terms of ATM End System Addresses and to determine which nodes are advertising this reachability. This table is also used to configure static routes to reachable address prefixes. The local node index that received the reachability information, reachable address, address prefix length, and an index that distinguishes between multiple listings of connectivity to a given address prefix from a given local node are combined to form an instance ID for this object.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniRouteAddrTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.