pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 79
![no-image](/images/no-image-200.jpg)
pxf4336
Manufacturer Part Number
pxf4336
Description
Abm Premium Atm Buf Fer Manager
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXF4336.pdf
(425 pages)
- Current page: 79 of 425
- Download datasheet (5Mb)
IF
THEN
ELSE
3.4.1.7.6 ABR Congestion Indication Support
ExceedCiGlobal =
ExceedCiSB =
ExceedCiQueue =
See
3.4.1.8
The SB congestion indication mechanism is provided to support external flow control
based on Dynamic Bandwidth Allocation (DBA) algorithms. These algorithms allocate
bandwidth in aggregates often referred to as pipes. Several pipes are assumed to
compete for bandwidth on a shared resource bottleneck. The demand for bandwidth of
each individual pipe is monitored and a corresponding share of the resource is
dynamically allocated to the pipe. Several variants of this algorithm have been reported,
supporting fairness and QoS requirements across the bottleneck. Examples of DBA
applications are
• Internal flow control across switching fabrics in an input/output buffered switch
• Point-to-multipoint traffic aggregation, e.g. in an ATM Passive Optical Network
In the context of the ABM-P, a pipe is implemented by a scheduler block. Remember that
the SB rate can be changed flexibly, on the fly. In order to monitor the congestion in an
SB, a set of four congestion indication thresholds have been defined per SB. The
crossing of these thresholds is indicated in a bitmap which can be accessed externally.
Data Sheet
(APON) scenario
Figure 4-9
(ExceedMaxBuffer = FALSE) AND
(ExceedMaxQueueLimit = FALSE) AND
(ExceedMaxNg = FALSE) AND
(ExceedCLP1 = FALSE) AND
(CellAcceptedByEPD = TRUE) AND
(CellAcceptedByPPD = TRUE) AND
(CellAcceptedByHyst = TRUE)
BufferIncomingCell
DiscardIncomingCell
IF
THEN
IF
THEN
SB Congestion Indication Mechanism
for an example of threshold configuration.
PPDen AND UserToUserCell AND (EndOfPacket = FALSE)
DiscardRestOfPacket = TRUE
PPDen = FALSE AND UserToUserCell AND ExceedMaxNg
DiscardRestOfPacket = TRUE
(BufferOccNg >= BufCiCLP1)
[(SBOccNg >= SBCiCLP1) AND (QID != 0)]
(QueueLength >= QueueCiCLP1)
79
Functional Description
PXF 4336 V1.1
2001-12-17
ABM-P
Related parts for pxf4336
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![BAR88-02L](/images/no-image3.png)
Part Number:
Description:
Antenna Switch Silicon Pin Diode
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BAW79](/images/no-image3.png)
Part Number:
Description:
Silicon Switching Diodes
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![1ED020I12FA](/images/no-image3.png)
Part Number:
Description:
Single Igbt Driver Ic
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![FF200R06ME3](/images/no-image3.png)
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![FF400R06ME3](/images/no-image3.png)
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![FZ1600R17KF6CB2](/images/no-image3.png)
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![TLE4262](/images/no-image3.png)
Part Number:
Description:
5 Volt Standard Regulator
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BGB420](/images/no-image3.png)
Part Number:
Description:
Active Biased Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BSS119](/images/no-image3.png)
Part Number:
Description:
N-channel Small Signal Mosfet 20v?800v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BSS98](/images/no-image3.png)
Part Number:
Description:
Sipmos Small-signal Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BSO612CVG](/images/no-image3.png)
Part Number:
Description:
Complementary Mosfets 60v Small-signal-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BSO615CG](/images/no-image3.png)
Part Number:
Description:
Complementary Mosfets 60v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BSO613SPVG](/images/no-image3.png)
Part Number:
Description:
P-channel Mosfets Power-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BSO615NG](/images/no-image3.png)
Part Number:
Description:
N-channel Mosfet 20v?300v Power Transistor Power Mosfet
Manufacturer:
Infineon Technologies Corporation
Datasheet:
![BTS112A](/images/no-image3.png)
Part Number:
Description:
Power Mosfets
Manufacturer:
Infineon Technologies Corporation
Datasheet: