With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniNodeHlinkInact
pnni Node Hlink Inact
1.3.6.1.4.1.353.5.4.1.1.4.1.5
The amount of time a node will continue to advertise a horizontal (logical) link for which it has not received and processed a LGN Horizontal Link information group.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniNodeHlinkInact 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.