With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrPpSrBpPortName
Virtual Router Passport Sr Bridge Port Port Name
The attribute portName is a string of the form 'BridgePortName-i', where BridgePortName is the abbreviation of the corresponding bridge port and i is the instance identifier of the ProtocolPort, the bridge port is provisioned under. For example a TransparentBridgePort provisioned under ProtocolPort/myport would have a name TBP-myport.
Back to Nortel-Magellan-Passport-BridgeMIB MIB page.
IPHost Network monitor allows you to monitor vrPpSrBpPortName 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.