With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
ltalkPortTable
ltalk Port Table
1.3.6.1.4.1.81.15.1.1
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IPHost Network monitor allows you to monitor ltalkPortTable on Avaya device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Avaya routers right now.