With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gvcIfDnaDdmDeviceMonitoringTimer
General Vc Interface Dna Ddm Device Monitoring Timer
This attribute specifies the wait period between 2 consecutive device monitoring sequences. A device monitoring sequence is characterized by one of the following: up to maxTestRetry TEST commands sent and a TEST response received or up to maxTestRetry of TEST commands sent and no TEST response received.
Back to Nortel-Magellan-Passport-GeneralVcInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor gvcIfDnaDdmDeviceMonitoringTimer 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 modems right now.