With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
stpxMSTPortRoleInstanceIndex
stpx MST Port Role Instance Index
1.3.6.1.4.1.9.9.82.1.11.12.1.1
The MST instance id within the range of 0 to stpxMSTMaxInstanceNumber.
Back to CISCO-STP-EXTENSIONS-MIB MIB page.
IPHost Network monitor allows you to monitor stpxMSTPortRoleInstanceIndex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.
