atmIfTxCellMemory 1.3.6.1.4.1.562.2.4.1.114.110.1.91

This attribute specifies the percentage of total transmit cell memory which is available for use by connections under this AtmIf. This attribute is not applicable, and is ignored for CQC-based ATM FPs. Transmit cell memory is used for storing ATM cells to be transmitted by connections under this AtmIf. It includes all cells in connections at the nrt-VBR or UBR service category. It includes cells in CBR or rt-VBR connections which are doing per-VC queueing. It does not include cells in CBR or rt-VBR connections which are allocated from the dedicated buffer for CBR common queuing or rt-VBR common queuing. If the value of this attribute is specified as 100, connections under this AtmIf may use up to 100% of the total transmit cell memory. If this attribute is specified as an amount less than 100, then only that percentage of the total transmit cell memory may be used by connections under this AtmIf. The minimum value for this attribute is 1% since some cell memory is always required for connections. For 3pDs3Atm2 and 3pE3Atm2 card types, the total cell memory displayed in Lp/x Eng Arc Aqm/0 txCellMemoryThreshold 0 is shared across all three interfaces for the card. Specifying a value of 100% enables complete overbooking of the total transmit cell memory by the three AtmIf's on this card. On a DS3 or E3 card, specifying values for this attribute such that each value is less than 100% but the sum for the three AtmIf's is more than 100% enables partial overbooking of the transmit cell memory. Specifying values for this attribute under the three AtmIf's where the sum of these attributes adds up to exactly 100%, ensures that each AtmIf has a dedicated pool of transmit cells with no overbooking. Specifying values for this attribute under the three AtmIf's where the sum of these attributes adds up to less than 100%, restricts the total size of the free list. This can be used to ensure the functioning of port aggregation even with a small number of connections. For 2pOc3MmAtm2 and 2pOC3SmAtm2 card types, the cell memory displayed in Lp/x Eng Arc Aqm/0 txCellMemoryThreshold 0 is allocated to the first interface for the card. Cell memory displayed in Lp/x Eng Arc Aqm/1 txCellMemoryThreshold 0 is allocated to the second interface for the card. Specifying an amount less than 100% restricts the total size of the free list. This can be used to ensure the functioning of port aggregation even with a small number of connections.