With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
lpEngArcTxCellMemoryAllocation
lp Eng Arc Tx Cell Memory Allocation
This attribute indicates the fraction of the transmit memory which is allocated for the transmission of cells on the FP. Cell memory is used for Atm Bearer Services, ATM SVCs and ATM PVCs. The remaining transmit memory is allocated for the transmission of frames. Frame memory is used for trunks, ATM VCC testing and for inter-card communication.
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IPHost Network monitor allows you to monitor lpEngArcTxCellMemoryAllocation 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.