With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniMapNodeDatabaseOverload
pnni Map Node Database Overload
1.3.6.1.4.1.353.5.4.1.1.15.1.7
Indicates whether the originating node is currently operating in topology database overload state. This attribute has the same value as the Non-transit for PGL Election bit in the nodal information group originated by this node.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniMapNodeDatabaseOverload 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.
