With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gvcIfDlciVcSendSequenceNumber
General Vc Interface Dlci Vc Send Sequence Number
This attribute displays the Vc internal packet's send sequence number. Note that a 'packet' in this context, may be either a user data packet, or an OAM frame.
Back to Nortel-Magellan-Passport-GeneralVcInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor gvcIfDlciVcSendSequenceNumber 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.