With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vncsTotalTranslations
vncs Total Translations
1.3.6.1.4.1.562.2.4.1.44.11.1.1
This attribute counts the total number of translation requests received by VNCS. This counter wraps to zero when it reaches its maximum value.
Back to Nortel-Magellan-Passport-VncsCallServerMIB MIB page.
IPHost Network monitor allows you to monitor vncsTotalTranslations 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 multiplexers right now.