With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
promSwitchSTPConfig
prom Switch STP Config
1.3.6.1.4.1.2167.5.1.1.1
When set to ieee8021dStp(1), the switch executes spanning tree conformant to the IEEE 802.1D bridging standard. The switch runs one instance of spanning tree. When set to stpPerVlan(2), the switch executes a separate instance of spanning tree for each virtual LAN. This configuration conforms to the model that instances of virtual LANs within the switch are separate virtual bridging functions. This method may not work well with bridge/routers that are also running spanning tree. When set to twoLayerStp(3), the switch executes a two-layer spanning tree to prevent loops. Two layer spanning tree creates a higher 'plane' of spanning tree between VLAN devices. This method of running spanning tree is 'plug and play' with bridge/router type devices and also scales better than the other two methods for large environments. When set to disable(4), spanning tree is disabled in the switch.
Back to LUCENT-CAJUN-SWITCH-MIB MIB page.
IPHost Network monitor allows you to monitor promSwitchSTPConfig on Avaya device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Avaya IP phones right now.