With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frUniDlciVcStartTime
Frame Relay Uni Dlci Vc Start Time
This attribute displays the start time of this interval period. If Vc spans 12 hour time or time of day change startTime reflects new time as recorded at 12 hour periods or time of day changes.
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IPHost Network monitor allows you to monitor frUniDlciVcStartTime 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 secure routers right now.