With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrSnmpLastOrChange
Virtual Router Snmp Last Or Change
This attribute indicates the value of sysUpTime (in 1/100's of a second) at the time of the most recent change to a SNMPv2 Object Resource entry. The attribute forms part of the SNMPv2 MIB Base Object Resource Group found in rfc1450.
Back to Nortel-Magellan-Passport-BaseSnmpMIB MIB page.
IPHost Network monitor allows you to monitor vrSnmpLastOrChange 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.