pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 107
pxf4336
Manufacturer Part Number
pxf4336
Description
Abm Premium Atm Buf Fer Manager
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXF4336.pdf
(425 pages)
- Current page: 107 of 425
- Download datasheet (5Mb)
The algorithm is designed to control the queue length around a given operating point,
which can be chosen with parameter QL0 (see
2048 cells.
3.5.1.8
Reactive Switch Control (RSC) is an extension to the Explicit Rate Marking mechanism.
A switch with RSC behavior enabled is intended to adjust connection specific rates to not
exceed the current explicit rate value from the incoming BRM cells (see
The ABM-P supports RSC by extracting the ER from incoming BRM cells in the ERC unit
(see
logical queue to the value of the ER.
Example:
Imagine that a connection crosses 2 bottlenecks called ABM-P (a) and ABM-P (b). At a
certain moment ABM-P (a) serves the connection with 10 Mbit/s, ABM-P (b) with 5 Mbit/
s. Hence, ABM-P (b) will have to store the difference of 5 Mbit/s incoming cells. In such
a situation the BRM cells flowing backwards from ABM-P (b) towards ABM-P (a) will
carry the ER=5 Mbit/s. The ABM-P (a) has calculated an ER=10 Mbit/s and hence will
not modify the ER field of the backward RM cells. Depending on the loop length (round
trip time until BRM cells arrive at the source and source reduces the emit rate), ABM-P
(b) is likely to overflow with cells for this connection. To shorten the control loop, Reactive
Switch Control (RSC) immediately updates the emit rate of ABM-P (a) to the lower ER
value extracted from the BRM cells.
Symmetric, but de-coupled control loops are foreseen by the standard to control both
source-destination flows. For simplification, only one flow is shown in this example.
Figure 3-45 Reactive Switch Control Example
Data Sheet
Source and
sink RM cells
Source
adjust
ACR
Section
user and RM cell flow
RM cell flow
Reactive Switch Control
3.5.2) and dynamically adjusting the PCR limiter of the corresponding
adjust
ACR to
5Mbit/s
ABM-P (a)
No update
ä ä ä ä
10Mbit/s
ER=
107
Table
update RM
ER=5Mbit/s
ABM-P (b)
3-55) to be one of 256, 512, 1024,
ä ä ä ä ä ä ä ä
5Mbit/s
ER=
Functional Description
PXF 4336 V1.1
Destination
Figure
update RM
Turn-around
RM cells
ä ä ä ä
2001-12-17
ABM-P
3-45).
Related parts for pxf4336
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Antenna Switch Silicon Pin Diode
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Silicon Switching Diodes
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Single Igbt Driver Ic
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
5 Volt Standard Regulator
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Active Biased Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
N-channel Small Signal Mosfet 20v?800v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Sipmos Small-signal Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Complementary Mosfets 60v Small-signal-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Complementary Mosfets 60v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
P-channel Mosfets Power-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
N-channel Mosfet 20v?300v Power Transistor Power Mosfet
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Power Mosfets
Manufacturer:
Infineon Technologies Corporation
Datasheet: