Supermicro AOC-PG-I2+ Guía de usuario descargar pdf (Pagina 30)

AOC-PG-i2+ Add-on Card User’s Manual

4-4

Table 4-1. Command Line Parameter Settings

Parameter

Name

Valid Range/

Settings

Default Description

AutoNeg

0x01-0x0F,

0x20-0x2F

0x2F

This parameter is a bit mask that specifies which

speed and duplex settings the board advertises.

When this parameter is used, the Speed and

Duplex parameters must not be specified.

This parameter is supported only on adapters using

copper connections.

NOTE: Refer to the Speed and Duplex section of

this readme for more information on the AutoNeg

parameter

Duplex

0-2

(0=auto-negotiate,

1=half, 2=full)

Defines the direction in which data is allowed to

flow. Can be either one or two-directional. If both

Duplex and the link partner are set to

auto-negotiate, the board auto-detects the correct

duplex. If the link partner is forced (either full or

half), Duplex defaults to half-duplex.

This parameter is supported only on adapters using

copper connections.

FlowControl

0-3

(0=none, 1=Rx

only, 2=Tx only,

3=Rx&Tx)

Read flow

control

settings from

the EEPROM

This parameter controls the automatic

generation(Tx) and response(Rx) to Ethernet

PAUSE frames.

Interrupt -

ThrottleRate

(not supported on

Intel(R) 82542,

82543 or

82544-based

adapters)

Valid Range:

0,1,3,100-100000

(0=off,

1=dynamic,

3=dynamic

conservative)

Since 7.3.x, the driver has two adaptive modes

(setting 1 or 3) in which it dynamically adjusts the

InterruptThrottleRate value based on the traffic that

it receives. After determining the type of incoming

traffi c in the last timeframe, it will adjust the

InterruptThrottleRate to an appropriate value for

that traffic.

The algorithm classifies the incoming traffic every

interval into classes. Once the class is determined,

the InterruptThrottleRate value is adjusted to suit

that traffic type the best.

There are three classes defined:

• Bulk traffic – for large amounts of packets of

normal size

• Low latency – for small amounts of traffic and/

or a significant percentage of small packets

• Lowest latency – for almost completely small

packets or minimal traffic

In dynamic conservative mode, the

InterruptThrottleRate value is set to 4000 for traffic

that falls in class “Bulk traffic”. If traffic falls in the

“Low latency” or “Lowest latency” class, the

InterruptThrottleRate is increased stepwise to

20000. This default mode is suitable for most

applications.

See the Footnote

at the end of this table for more

information.

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