With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
crsPAddrSRidMidModuleId
crs P Address S Rid Mid Module Id
This attribute specifies a Passport node to which the primary address is redirected.
Back to Nortel-Magellan-Passport-CallRedirectionMIB MIB page.
IPHost Network monitor allows you to monitor crsPAddrSRidMidModuleId 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.