HP Workstation xw6000 Instrucciones de instalación y mantenimiento

network communications guide

hp workstation xw4000

hp workstation xw6000

Document Part Number: 301546-001

October 2002

This guide provides definitions and instructions for using network

interface controller (NIC) features that are preinstalled on select

models.

301546-001.book Page i Thursday, July 18, 2002 10:51 PM

Compaq and the Compaq logo are trademarks of Compaq Information

Technologies Group, L.P. in the U.S. and/or other countries.

Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft

Corporation in the U.S. and/or other countries.

Intel, Pentium, Intel Inside, and Celeron are trademarks of Intel Corporation in

the U.S. and/or other countries.

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companies.

Hewlett-Packard Company shall not be liable for technical or editorial errors or

omissions contained herein or for incidental or consequential damages in

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information in this document is provided “as is” without warranty of any kind,

including, but not limited to, the implied warranties of merchantability and

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statements accompanying such products. Nothing herein should be construed as

constituting an additional warranty.

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network communications guide

hp workstation xw4000

hp workstation xw6000

First Edition (October 2002)

Document Part Number: 301546-001

301546-001.book Page ii Thursday, July 18, 2002 10:51 PM

Network Communications Guide iii

Contents

Network Communications Guide

NIC-Based Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Wake-On-LAN Support (WOL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Interpreting the Network Status Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Disabling 802.3u Auto-Negotiation Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installing Network Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

301546-001.book Page iii Thursday, July 18, 2002 10:51 PM

Network Communications Guide 1

Network Communications Guide

The following items are covered in this guide:

■NIC-Based Alerts

■Wake-On-Lan (WOL) Support

■Interpreting the Network Status Lights

■Disabling the Autosensing Capabilities

■Installing Network Drivers

NIC-Based Alerts

Some NICs feature Alerting Capabilities, which allows a system

administrator to remotely monitor the computer over the network.

The computer can send hardware and operating system alerts over the

network before the operating system is loaded, while the operating

system is loaded, while the computer is in low power states, and when

the computer is powered off. Depending on the NIC model, these

alerts may include:

■System BIOS hang

■Operating system hang

■Processor missing

■Operating temperature exceeded

■Chassis intrusion

■Watchdog

■Heartbeat monitoring

✎NIC-Based Alerts are enabled by installing the Alert on LAN agents

from Intel. These are available at http://www.compaq.com.

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2 Network Communications Guide

Network Communications Guide

Wake-On-LAN Support (WOL)

Wake-On-Lan (WOL) can be enabled and disabled in Windows 2000

and Windows XP.

To enable or disable Wake-On-Lan:

1. Select Start > Control Panel > Hardware > Device Manager >

NIC > Properties.

2. Select the Power Management tab.

3. Select or de-select Allow this Device to Bring the Computer

out of Standby.

Or,

1. Run Computer Setup by restarting the computer and pressing the

F10 key when “F10” appears in the lower right corner of the

screen.

2. Select the Advanced tab > Device Options > PME Wakeup

Events.

3. Using the right or left arrow key, select enable or disable.

✎For more information on Wake-On-LAN, refer to the online Desktop

Management Guide or to the Remote Management Administrators

Guide. The Remote Management Administrators Guide is included

with the Remote Management Setup Utilities and is available on the

Support Software CD or at http://www.compaq.com.

✎For information on WOL filtering, refer to any additional

documentation provided for the NICs advanced

diagnostics/configuration utility.

301546-001.book Page 2 Thursday, July 18, 2002 10:51 PM

Network Communications Guide 3

Network Communications Guide

Interpreting the Network Status Lights

Select Ethernet network interface controllers include network status

lights:

■The link light illuminates when the system is physically

connected to an active network.

■The activity light illuminates when the computer detects network

activity. When the system is connected to a highly used

network, the activity light will remain on almost constantly.

■The 100Base-TX light illuminates during 100-Mbs operation.

Some NICs include only two network status lights where link

(light on) and activity (light blinking) are indicated by one light and

100-Mbs operation is indicated by the second light.

✎The integrated NIC has two network status lights on the NIC

connector:

■Link light/Activity (Green)—Illuminates green when

physically linked to the network and blinks on and off to

indicate network activity.

■100Base-TX/10TX (Amber)—Illuminates amber when

operating at 100-Mbs and is not illuminated when operating

at 10-Mbs.

Disabling 802.3u Auto-Negotiation Capabilities

Auto-Negotiation NICs automatically determine the maximum

network operating speed and duplex capabilities of the attached

network and configure themselves on the highest common

combination. The computer begins Auto-Negotiation whenever it

obtains a valid network link, or when the NIC driver is loaded.

In addition to determining the network operating speed, the computer

determines if full-duplex is supported. Full-duplex systems can

transmit and receive information on the network simultaneously.

Half-duplex systems cannot transmit and receive simultaneously.

301546-001.book Page 3 Thursday, July 18, 2002 10:51 PM

4 Network Communications Guide

Network Communications Guide

If necessary, you can disable the Auto-Negotiation capabilities and

force the system to operate in one mode only.

1. Select the Network icon, located in the Control Panel.

2. Select the appropriate NIC in the list box and click Properties.

3. Change the Speed and Duplex values from Automatic/Auto

Duplex to the appropriate values, depending on the capabilities

of your network.

4. Exit the Network control application. You will be prompted to

restart your computer for the changes to take effect.

Refer to the documentation provided with the network controller for

additional information.

✎100Base-TX operation requires the use of Category 5 UTP cable with

an RJ-45 network connection.

Installing Network Drivers

The device drivers for the network controller enable the drivers to

load correctly in the operating system used, allowing communication

with the network.

✎Device drivers are supplied for the Microsoft Windows NT 4.0 and

Windows 98 or later operating systems, depending on the computer

model. If you are using another operating system, device drivers may

be installed from media included with the network operating system

or are available from HP. If reinstallation of the operating system ever

becomes necessary, use the Compaq Restore CD or Restore Plus! CD.

301546-001.book Page 4 Thursday, July 18, 2002 10:51 PM

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