With IPHost Network Monitor you can run simple snmp requests against a Avaya device in your network.
promPortMirroringRate
prom Port Mirroring Rate
1.3.6.1.4.1.2167.5.5.1.1.4
Used in conjunction with promPortMirroringSamplerType to implement periodic sampling functionality. If promPortMirroringSamplerType is set to periodic(3), this object defines the number of packets/second that will be mirrored. If promPortMirroringSamplerType is not periodic(3), this object will set to 0.
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IPHost Network monitor allows you to monitor promPortMirroringRate 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.