With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
promSwitchPortIgnoreTag
prom Switch Port Ignore Tag
1.3.6.1.4.1.2167.5.2.1.1.11
Each switch port is capable of ignoring the VLAN Tag associated with a frame in a trunking format. When ignored, the tag is used as the default in the event that a VLAN classification based on the switch's policy(s) cannot be made. This feature is useful for connecting layer 2 VLANs and layer 3 VLANs. The default is useTag.
Back to LUCENT-CAJUN-SWITCH-MIB MIB page.
IPHost Network monitor allows you to monitor promSwitchPortIgnoreTag 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.