IBM 5000 manual Configuring the Ethernet Controller, Hdx

Configuring the Ethernet Controller

If a device driver is causing a memory-address conflict, refer to y operating-system documentation or the documentation supplied with the dev drivers.

Configuring the Ethernet

Controller

Your

Netfinity 5000

server

comes

with

an

Ethernet

controller

on the

syste

The

Ethernet

controller

provides

10BASE-T

and 100BASE-TX support through the

RJ-45 connector

on

the

back

of

your

server.

When you connect your server to

the

network,

the

Ethernet

controller

au

detects the data-transfer rate

(10 Mbps

or

100

Mbps)

on

the

network

an

the controller to operate at the appropriate

rate.

That

is,

the

Ether

adjust to the network data rate, whether

the

data

rate

is

standard

(10BASE-T), Fast Ethernet (100BASE-TX),

half

duplex

(HDX),

or

full

duplex

(FDX

This process is also knownauto-negotiationas . This auto-negotiation occurs

without

software

intervention. The

controller supports half-duplex

(HDX)

an

full-duplex (FDX)

modes

at

both

speeds.

Auto-negotiation works only

if

the

hub

or

switch

to

which

your

server

also supports auto-negotiation. If

the

hub

or

switch

does

not

support

auto-negotiation, the speed (10

Mbps

or

100

Mbps)

will

still

be

detecte

but half-duplex mode will always

be selected. A full-duplex switch that

support auto-negotiation will not attach

to the

Netfinity

5000

server

in f

mode.

In this case, if you want the

network to operate in full-duplex mode,

manually override the settings to

obtain a full-duplex connection. To do

server must have a device driver that supports manual overrides. Use

ServerGuide CDs to install this device driver. Refer to the “ServerGuid

Netfinity Manager Information” sectionServer ofLibrarythisfor instructions on

installing

device

drivers. The ServerGuide

CDs

contain

IBM

Update

Connect

3

and device drivers current. Verif

dial-up program that keeps your BIOS

have installed the appropriate device driver. Also, refer to your Ethe

documentation

for

additional

information

on

operating

modes,

manual override

and

device

drivers (see

“Related Publications”

on

page xii).

Attention:

ŸThe 10BASE-T Ethernet and the 100BASE-TX Fast Ethernet cabling in the network must be Category 5 or higher to meet various standards, incl electromagnetic compatibility.

ŸYou must install a device driver to enable your operating system to Ethernet controller. Use the ServerGuide CDs to install this device d Refer to the information in the “ServerGuide and Netfinity Manager I

section	of Serverthis	Libraryfor	instructions	on	installing		device drivers,		or
more information about the ServerGuide				CDs.
Fast Ethernet operates at a data rate				of	up	to	100	Mbps. However,	e
different	operating	speeds,	Fast Ethernet	and		standard		Ethernet are	st

3 Response time will vary, depending on the number and nature of calls received.

32 Netfinity 5000 Server Hardware Information and Procedures