pxf4333 Infineon Technologies Corporation, pxf4333 Datasheet - Page 72

• Manufacturer Part Number: pxf4333
• Description: Abm 3g Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

3.4.1.7.1 Discard Conditions
/***** Basic Max/EPD conditions **********************************/
ExceedMaxBuffer =
ExceedMaxGlobal =
ExceedEpdGlobal =
ExceedMaxSB =
ExceedMaxTrafClass = (TrafClassOccNg >= TrafClassMax)
ExceedMaxQueueLimit= (QueueLength = QueueLimit)
ExceedMaxQueue =
/***** Basic CLP1 conditions *************************************/
ActiveCLP1 =
ExceedCLP1Global =
ExceedCLP1SB =
ExceedCLP1Queue =
/***** Basic reservation conditions ******************************/
ExceedMinBG =
ExceedCLP1DIS =
/***** Derived conditions ****************************************/
ExceedMaxNg =
ExceedEpd =
ExceedEpdCLP1 =
ExceedCLP1 =
3.4.1.7.2 EPD Algorithm
Based on the variables set by the EPD support parts of the threshold exceed algorithm
and queue specific variables, the EPD algorithm decides upon the acceptance of a
packet.
Data Sheet
(BufferOcc = BufMax)
(BufferOccNg >= BufMaxNg)
(BufferOccNg >= BufEPDNg)
(SBOccNg >= SBMax) AND (QID != 0)
(QueueLength >= QueueMax)
(CLP=1) AND (CLPT = FALSE)
(BufferOccNg >= BufCiCLP1) AND ActiveCLP1
(SBOccNg >= SBCiCLP1) AND (QID != 0) AND ActiveCLP1
(QueueLength >= QueueCiCLP1) AND ActiveCLP1
(QueueLength >= MinBG)
(SBOccLP >= CLP1DIS) OR (QID = 0)
ExceedMinBG AND {[
(EPDen = FALSE) AND (
ExceedMaxTrafClass OR ExceedMaxSB OR ExceedMaxQueue
)
] OR ExceedMaxGlobal }
ExceedMinBG AND [
ExceedEpdGlobal OR ExceedMaxTrafClass OR ExceedMaxSB
]
ExceedCLP1DIS AND {[
ExceedMinBG AND (ExceedCLP1Global OR ExceedCLP1SB)
]
OR ExceedCLP1Queue }
ExceedEpdCLP1 AND (EPDen = FALSE)
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Functional Description
PXF 4333 V1.1
2001-12-17
ABM-3G