With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
timeServerProvTable
time Server Prov Table
1.3.6.1.4.1.3646.1300.2.1.2.1.3.11
This group contains the provisionable attributes of the Server component.
Back to Nortel-Magellan-Passport-TimeMIB MIB page.
IPHost Network monitor allows you to monitor timeServerProvTable 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.