With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctVcfrOutOfRangeFrmFromSubnet
VC Tester Vcfr Out Of Range Frm From Subnet
1.3.6.1.4.1.562.2.4.1.5130.5.12.1.5
This attribute displays the number of frames from subnet discarded due to out of sequence range for arriving too late.
Back to Nortel-Magellan-Passport-VcTesterMIB MIB page.
IPHost Network monitor allows you to monitor vctVcfrOutOfRangeFrmFromSubnet 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.