With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
stpxPathCostOperModeGroup
stpx Path Cost Operational Mode Group
1.3.6.1.4.1.9.9.82.3.2.38
A collection of objects providing information about operational spanning tree path cost mode.
Back to CISCO-STP-EXTENSIONS-MIB MIB page.
IPHost Network monitor allows you to monitor stpxPathCostOperModeGroup 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.