With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnRtpPktDiscard
appn Rtp Packet Discard
This attribute counts the total number of packets discarded on this High Performance Routing-Rapid Transport Protocol pipe. Large numbers of discarded packets may indicate a problem in the APPN network. This counter wraps to zero.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnRtpPktDiscard 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 multiplexers right now.