317697-001 Ver la hoja de datos (PDF) - Intel

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317697-001

Gigabit Ethernet Controller

Intel 

82575 Gigabit Ethernet Controller Datasheet

2.5

Features

Header split replication in receive

Advanced packet filtering

IEEE 802.1q VLAN support with VLAN tag

insertion, stripping and packet filtering for up

to 4096 VLAN tags

Double Vlan

Descriptor ring management hardware for

transmit and receive

9.5 kByte jumbo frame support

Receive Side Scaling (RSS)

VMDq

Direct Cache Access (DCA)

Fragmented UDP checksum offload for packet

reassembly

Benefits

• Helps the driver to focus on the relevant part of

the packet without the need to parse it.

• 16 exact matched packets (unicast or multicast)

• 4096-bit hash filter for multicast frames

• Promiscuous (unicast and multicast) transfer

mode support

• Optional filtering of invalid frames

• Ability to create multiple virtual LAN segments

• Insert in Tx and extract in Rx

• Optimized fetching and write-back mechanisms

for efficient system memory and PCI bandwidth

usage

• High throughput for large data transfers on

networks supporting jumbo frames

• Multiple Rx queues

• Virtualization environment. In this environment,

packets dedicated to different virtual machines

can be routed to different queues, thus easing

the routing of these packets to the target

machine.

• The IO device activates a pre-fetch engine in the

CPU that loads the data into the CPU cache ahead

of time, before use, eliminating cache misses and

reducing CPU load.

•

Manageability Features

Features

Advance Pass Through-compatible

management packet Tx/Rx support

ASF 1.0 and Alert on LAN 2.0

Both ports support Wake on LAN (WoL)

SMBus port

NC-SI high-bandwidth interface

On-board microcontroller

Preboot eXecution Environment (PXE) Flash

interface support (32-bit and 64-bit)

iSCSI Boot

Benefits

Network management flexibility

Manageability DMTF preOS sideband protocol

support

Promotes customized designs

Allows packets routing to and from either LAN

port and a server management processor

Local Flash interface for PXE image

Network Management Feature

7

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