With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctVcfrRcosToNetwork
VC Tester Vcfr Rcos To Network
1.3.6.1.4.1.562.2.4.1.5130.5.10.1.28
This attribute indicates the routing metric routing class of service to the network.
Back to Nortel-Magellan-Passport-VcTesterMIB MIB page.
IPHost Network monitor allows you to monitor vctVcfrRcosToNetwork 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 switches right now.