With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mpanlSigIndex
mpanl Sig Index
This variable represents the index for the mpanlSig tables.
Back to Nortel-Magellan-Passport-MpaNetworkLinkMIB MIB page.
IPHost Network monitor allows you to monitor mpanlSigIndex 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.