With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrPpTbclNsIndex
Virtual Router Passport Tbcl Ns Index
This variable represents the index for the vrPpTbclNs tables.
Back to Nortel-Magellan-Passport-BridgeMIB MIB page.
IPHost Network monitor allows you to monitor vrPpTbclNsIndex 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.