With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
tdmaBcRlp1Layer3L0ReqWinSize
tdma Bc Rlp1 Layer3 L0 Req Win Size
This attribute indicates the window size for Service Access Point (SAP) 0 requested by layer 3. The window size is the maximum number of sequentially numbered Information (I) frames that may be unacknowledged at any given time.
Back to Nortel-Magellan-Passport-TdmaIwfMIB MIB page.
IPHost Network monitor allows you to monitor tdmaBcRlp1Layer3L0ReqWinSize 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 switches right now.