With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
lsHistoryIntervalTime
ls History Interval Time
1.3.6.1.4.1.81.19.3.11.1.3
The value of sysUpTime when this bucket was sampled .
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IPHost Network monitor allows you to monitor lsHistoryIntervalTime on Avaya device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Avaya switches right now.