With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
promPortDuplexEntry
prom Port Duplex Entry
1.3.6.1.4.1.2167.3.6.3.1.1
A port device configuration that controls the duplex mode of this port.
Back to LUCENT-CAJUN-SWITCH-MIB MIB page.
IPHost Network monitor allows you to monitor promPortDuplexEntry on Avaya device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Avaya routing switches right now.