With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frAtmDlciSiwfLastUnknown1490ProtocolHeader
Frame Relay Atm Dlci Siwf Last Unknown1490 Protocol Header
This attribute contains the most recent unrecognized protocol header that was received from the interface. All the RFC 1490 protocols described in sections 5.3.1.1 through 5.3.1.3 of FRF.8 are supported, except ARP is not supported.
Back to Nortel-Magellan-Passport-FrameRelayAtmMIB MIB page.
IPHost Network monitor allows you to monitor frAtmDlciSiwfLastUnknown1490ProtocolHeader 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.