With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnAdjNnLastFrsnSent
appn Adj Nn Last Frsn Sent
Flow reduction sequence numbers (FRSNs) are associated with Topology Database Updates (TDUs) and are unique only within each APPN network node. A TDU can be associated with multiple APPN resources. This FRSN indicates the last TDU sent to this adjacent node.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnAdjNnLastFrsnSent 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.