With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
appnDLURDlusRetryLimit
appn DLUR Dlus Retry Limit
This attribute specifies the maximum number of retry attempts that will be made after an initial failure to contact a DLUS. If zero is specifed, APPN will retry indefinitely. When this limit has been reached, downstream PUs that are connected to APPN will be sent a QDISC frame.
Back to Nortel-Magellan-Passport-AppnMIB MIB page.
IPHost Network monitor allows you to monitor appnDLURDlusRetryLimit 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 speech servers right now.