Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

FWIXP425AB Fiches technique(PDF) 2 Page - Intel Corporation

No de pièce FWIXP425AB
Description  Optimized for Broadband Applications
Download  4 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  INTEL [Intel Corporation]
Site Internet  http://www.intel.com
Logo INTEL - Intel Corporation

FWIXP425AB Fiches technique(HTML) 2 Page - Intel Corporation

  FWIXP425AB Datasheet HTML 1Page - Intel Corporation FWIXP425AB Datasheet HTML 2Page - Intel Corporation FWIXP425AB Datasheet HTML 3Page - Intel Corporation FWIXP425AB Datasheet HTML 4Page - Intel Corporation  
Zoom Inzoom in Zoom Outzoom out
 2 / 4 page
background image
Distributed Processing Architecture (continued)
The three NPEs are designed to offload many computa-
tionally intensive data plane operations from the Intel
XScale core. These tasks include: IP header inspection
and modification; packet filtering; packet error checking;
check sum computation; flag insertion and removal; PDU
segmentation and assembly; and encryption. The NPE
architecture includes an ALU, self-contained internal data
memory, an extensive list of I/O interfaces, together with
hardware acceleration engines (also known as NPE
coprocessors). It is the NPE coprocessor associated
with an NPE that targets a set of networking applications.
Each NPE coprocessor is designed to accelerate a
specific networking task that would otherwise take many
MIPs to complete by a stand-alone RISC processor.
Each NPE can take care of Layer 2 and, in some cases,
Layer 3 packets that are passed through them. For example,
the WAN/Voice NPE has one UTOPIA 2 interface and two
high-speed serial interfaces so its internal processing is
targeting the handling of AAL (1/2/5) SARing, TDM framing,
and HDLC processing. An MII/RMII interface is attached
to both the Ethernet NPE A and the Ethernet NPE B
respectively. The Ethernet NPE A also has two internal
coprocessors to accelerate VPN related tasks such as
3DES and Hashing at speeds up to full-rate ADSL. The
Ethernet NPE B is capable of handling 100Mb/s, full-duplex
Ethernet packet filtering. The extensive hardware capabilities
of these NPEs are all under the management of a set of
NPE microcode drivers that are released as a software
library together with the Intel IXP425 network processors.
Customer applications configure and interact with the
NPEs through a high-performance API layer running on
the Intel XScale core.
Wire-Speed Performance
The Intel IXP425 network processors implement a fast
path design in the NPE software library to provide
optimized performance for broadband applications.
The fast path design passes non-inspection IP packets
directly from the ingress port NPE (usually WAN/Voice
NPE with the xDSL WAN port) to the egress port NPE
(usually Ethernet NPE A or B with the Ethernet LAN port)
without the involvement of the Intel XScale core. Since
the vast majority of IP packets move from the WAN to
the Ethernet LAN, isolating these data flows to the NPEs
within the Intel IXP425 network processor produces a
significant throughput improvement by eliminating the
need to route packets through a central processor. The
most demanding situation occurs when small (64 byte)
IP packets are sent at the speed that saturates the
physical layer (wire speed). For example, nearly 10,000
(64 byte) packets per second will be sent downstream
in an ADSL connection that runs at the maximum wire
speed (8 Mb/s downstream). The NPEs and fast path
design in the Intel IXP425 network processors are capable
of providing, at minimum packet sizes, wire-speed perfor-
mance up to 52 Mb/s on the WAN side and 100 Mb/s on
the Ethernet LAN.


Numéro de pièce similaire - FWIXP425AB

FabricantNo de pièceFiches techniqueDescription
logo
Intel Corporation
FWIXP425BB INTEL-FWIXP425BB Datasheet
1Mb / 134P
   Intel짰 IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
FWIXP425BC INTEL-FWIXP425BC Datasheet
1Mb / 134P
   Intel짰 IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
FWIXP425BD INTEL-FWIXP425BD Datasheet
1Mb / 134P
   Intel짰 IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
More results

Description similaire - FWIXP425AB

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD9861 AD-AD9861_17 Datasheet
977Kb / 52P
   Transceiver for Broadband Applications
AD9863 AD-AD9863_17 Datasheet
978Kb / 41P
   Transceiver for Broadband Applications
logo
International Rectifier
IRLB8743PBF IRF-IRLB8743PBF_15 Datasheet
271Kb / 9P
   Optimized for UPS/Inverter Applications
IRLB8748PBF IRF-IRLB8748PBF_15 Datasheet
270Kb / 9P
   Optimized for UPS/Inverter Applications
IRFR8314PBF IRF-IRFR8314PBF_15 Datasheet
549Kb / 9P
   Optimized for UPS/Inverter Applications
logo
Infineon Technologies A...
IRLB4132PBF INFINEON-IRLB4132PBF Datasheet
2Mb / 9P
   Optimized for UPS/Inverter Applications
2019-08-14
logo
International Rectifier
IRL8114PBF IRF-IRL8114PBF_15 Datasheet
429Kb / 7P
   Optimized for UPS/Inverter Applications
IRLB8314PBF IRF-IRLB8314PBF_15 Datasheet
697Kb / 8P
   Optimized for UPS/Inverter Applications
IRLB3813PBF IRF-IRLB3813PBF_15 Datasheet
248Kb / 9P
   Optimized for UPS/Inverter Applications
logo
Vishay Siliconix
VS-19TQ015PBF VISHAY-VS-19TQ015PBF Datasheet
163Kb / 7P
   Optimized for OR-ing applications
Revision: 25-Aug-11
More results


Html Pages

1 2 3 4


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com