With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
shelfBusTestPingTestsValue
shelf Bus Test Ping Tests Value
1.3.6.1.4.1.43.1.12.3.1.1.2.3.2.251.1.3
This variable represents an individual value for the shelfBusTestPingTestsTable.
Back to Nortel-Magellan-Passport-ShelfMIB MIB page.
IPHost Network monitor allows you to monitor shelfBusTestPingTestsValue 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.