mscLpEngFcrcTxFrThreshTable
1.3.6.1.4.1.562.36.2.1.12.23.6.442
This attribute indicates the total transmit frame memory size and the
discard thresholds of the transmit frame memory. The transmit
frame memory is the memory (in units of frames) used for storing
frames to be transmitted by this FP.
The first parameter indicates the total size of the transmit frame
memory. This is derived from the connectionPoolCapacity and the
txCellMemoryAllocation under the ARC component.
When the txFrameMemoryAvailable attribute decreases to the
second value, the txFrameMemoryCongestionState changes from 3
to 2. In congestion state 2, traffic with discard priority (DP) = 3 is
discarded. This threshold is set approximately at 25 percent of the
first value, the total transmit frame memory size.
When the txFrameMemoryAvailable attribute decreases to the third
value, the txFrameMemoryCongestionState changes from 2 to 1. In
congestion state 1, traffic with discard priority (DP) >= 2 is
discarded. This threshold is set approximately at 20 percent of the
first value, the total transmit frame memory size.
When the txFrameMemoryAvailable attribute decreases to the
fourth value, the txFrameMemoryCongestionState changes from 1
to 0. In congestion state 0, traffic with discard priority (DP) >= 1 is
discarded. This threshold is set approximately at 10 percent of the
first value, the total transmit frame memory size.
The opposite effect occurs when the txFrameMemoryAvailable
attribute increases (txFrameMemoryCongestionState increases from
0 to 3 accordingly).