With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
mcsMgrFrf5EpGEpDlciABitStatusFromIf
mcs Manager Frf5 Ep G Ep Dlci A Bit Status From If
This attribute indicates the most recent A-bit status received from the ATM VCC. If the value is inactive, the reason for the LMI failure is given by the aBitReasonFromNetwork.
Back to Nortel-Magellan-Passport-Frf5EpMIB MIB page.
IPHost Network monitor allows you to monitor mcsMgrFrf5EpGEpDlciABitStatusFromIf 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.