With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frDteRecvDiscardPvcDown
Frame Relay Dte Recv Discard Pvc Down
Count of received frames discarded because the Dlci or a component positioned in a hierarchically fashion above it (e.g. it's remote group or the FrDte component) was administratively disabled. This counter will wrap around to 0 when it exceeds its maximum count.
Back to Nortel-Magellan-Passport-FrameRelayDteMIB MIB page.
IPHost Network monitor allows you to monitor frDteRecvDiscardPvcDown 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.