With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
lhsLinkStatus
lhs Link Status
1.3.6.1.4.1.81.19.2.2.1.15
This attribute describes the status of the optical link as detected by the sensor software.
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IPHost Network monitor allows you to monitor lhsLinkStatus 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.