With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrPpSrtBpIfIndex
Virtual Router Passport Srt Bridge Port If Index
This attribute specifies the index into the Interface Table where in information about the media interface corresponding to the bridge port is maintained.
Back to Nortel-Magellan-Passport-BridgeMIB MIB page.
IPHost Network monitor allows you to monitor vrPpSrtBpIfIndex 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.