With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
stpxSMSTInstanceRemainingHopCount
stpx SMST Instance Remaining Hop Count
1.3.6.1.4.1.9.9.82.1.14.5.1.4
The remaining hop count for this MST instance. If this object value is not applicable on an MST instance, then the value retrieved for this object for that MST instance will be -1. This object is only instantiated when the object value of stpxSpanningTreeType is mst(4).
Back to CISCO-STP-EXTENSIONS-MIB MIB page.
IPHost Network monitor allows you to monitor stpxSMSTInstanceRemainingHopCount on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.
