With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gvcIfLcnVcSubnetTxPktSize
General Vc Interface Logical Channel Number Vc Subnet Tx Packet Size
This attribute displays the locally negotiated size of the data packets on this Vc.
Back to Nortel-Magellan-Passport-GeneralVcInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor gvcIfLcnVcSubnetTxPktSize 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 modems right now.