With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
lstIntPortInOctets
lst Int Port In Octets
1.3.6.1.4.1.81.19.4.1.1.1.8
Number of octets passing in to the HSB from the ring. The In traffic includes only traffic going from stations on the local ring to stations on other rings.
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IPHost Network monitor allows you to monitor lstIntPortInOctets 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.