With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
shelfBusTestPingFailuresEntry
shelf Bus Test Ping Failures Entry
1.3.6.1.4.1.43.1.12.3.1.1.2.3.2.252.1
An entry in the shelfBusTestPingFailuresTable.
Back to Nortel-Magellan-Passport-ShelfMIB MIB page.
IPHost Network monitor allows you to monitor shelfBusTestPingFailuresEntry 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.