With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctVcfrPeakOoSeqByteCount
VC Tester Vcfr Peak Oo Seq Byte Count
1.3.6.1.4.1.562.2.4.1.5130.5.12.1.20
This attribute displays the frame relay peak byte count of the out of sequence queue. This attribute records the maximum queue length of the out-of-sequenced queue. The counter can be used to deduce the message buffer requirement on a Vc.
Back to Nortel-Magellan-Passport-VcTesterMIB MIB page.
IPHost Network monitor allows you to monitor vctVcfrPeakOoSeqByteCount 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.