C H A P T E R 3

Intel® NetStructure™ 6000 Switch Modules User Guide

10/100 Ethernet Troubleshooting

Power-up Problems

The following table is a quick guide to power-up problems, their possible cause, and a suggested course of action.

 

Possible

 

Symptom

Cause

Course of Action

 

 

 

No Link LED after

Bad or improper

Check cable. 100Mbps

plugging in a cable.

cable type.

link requires Category 5

 

 

cable. Hub-to-switch or

 

 

switch-to-switch

 

 

connection must be made

 

 

with a “crossover” cable.

 

 

Check patch cables

 

 

especially. Never use

 

 

“silver satin” telephone

 

 

patch cables. The total

 

 

length of the cable should

 

 

be less than 100 meters

 

 

(328.1 feet) including

 

 

patches.

 

 

 

 

Ports are

The switch’s default link

 

configured

connects with any

 

improperly.

properly operating link.

 

 

However, a port can be

 

 

configured to link without

 

 

auto-negotiation into one

 

 

of several configurations.

 

 

If plugged into a port that

 

 

has been configured

 

 

differently, the link might

 

 

not connect or might not

 

 

work properly. For

 

 

example, a full-duplex

 

 

port connected to a half-

 

 

duplex port might have

 

 

many frame errors.The

 

 

best solution is to use the

 

 

ports in auto-negotiation

 

 

mode with properly

 

 

functioning devices

 

 

plugged into them.

 

 

 

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Intel A21721-001 manual 10/100 Ethernet Troubleshooting, Possible Symptom Cause Course of Action

A21721-001 specifications

The Intel A21721-001 is a highly regarded microprocessor that exemplifies Intel's commitment to innovation and performance in the computing landscape. As part of the family of Intel processors, the A21721-001 offers several features geared towards both consumer and enterprise markets, ensuring versatility across various applications.

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In conclusion, the Intel A21721-001 stands out for its robust performance, advanced technologies, and versatility, making it an excellent choice for users looking for a powerful and efficient microprocessor in today's fast-evolving computing environment.