With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctDnaHgMAvailabilityUpdateThreshold
VC Tester Dna Hg M Availability Update Threshold
1.3.6.1.4.1.562.2.4.1.5130.2.3.10.1.1
This attribute indicates the number of channels that have to be freed or occupied before the Availability Message Packet (AMP) is sent to the Hunt Group Server informing it of the status of this interface.
Back to Nortel-Magellan-Passport-VcTesterMIB MIB page.
IPHost Network monitor allows you to monitor vctDnaHgMAvailabilityUpdateThreshold 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 switches right now.