With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
btdsPlcEmissionPriority
btds Plc Emission Priority
This attribute indicates the urgency with which packets on the path are emitted by the trunks on the route. EmissionPriority of Zero(0) indicates the highest emission priority, while two (2) indicates the lowest emission priority. Packets with a higher emissionPriority (or numerically less) are serviced and sent out before the packets of lower emissionPriority (or numerically higher).
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IPHost Network monitor allows you to monitor btdsPlcEmissionPriority on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel multiplexers right now.