 |
» |
|
|
|
10/100Base-TX problems can be caused by problems in a variety
of hardware and software components. The problem impacting your
system may originate in another part of the 10/100Base-TX network. As with any troubleshooting, a systematic approach is helpful.
The following table and the following flowcharts provide a logical
sequence of steps to follow when troubleshooting 10/100Base-TX/9000.
Using the diagnostic flowcharts provided in this chapter, identify
whether the problem is with 10/100Base-TX/9000 or any of the connections
to the hub or switch, or whether it is in some other part of the
network, verify your assumptions and, if it is limited to 10/100Base-TX/9000
software or hardware, correct the problem. | | | |  | NOTE: To quickly isolate and diagnose 10/100Base-TX/9000 problems,
follow the steps in the troubleshooting flowcharts, beginning with
Flowchart 1, and stay with the flowcharts until the problems are
resolved. Continue sequentially through flowcharts 2, 3, 4, 5, 6,
and 7, referring back to flowchart 1 (ping)
until you have corrected the problems. | | | | |
If you cannot solve the problem on your own, contact your
HP representative. Use the guidelines at the end of chapter 3 to
help you effectively communicate what is wrong. The 10/100Base-TX
product uses diagnostic tools compatible with the HP LAN/9000 Link
product. Table 4-1 Troubleshooting
Information Symptom | Corrective
Action |
|---|
The system does not recognize the card;
all LEDs off. | Ensure
that the card is seated in the system backplane and is connected
to a known good hub/switch with a good cable. Check for boot-time
error messages by typing the dmesg command
at the HP-UX prompt. Ensure that kernel contains driver by issuing
what command on kernel. | The card LEDs are okay, but you can't
communicate with other systems. | If
the card LEDs appear to be okay: 1) Verify that the cable being
used complies with the IEEE 802.3u-1995 standard. 2) Ping the broadcast
address for the card, and check to see if the activity light on
the hub blinks. Other active hosts must be connected to the hub
or else the activity light will not blink. 3) If the activity light
on the hub does not blink, and there are other active hosts connected
to the hub, open another window and enter: netstat -i
1 Try the broadcast ping again. The transmitted packets counter
should start to increment. If the counter does not increment, then
there is an IP configuration problem. 4) If the counter does increment,
but the activity light on the hub does not blink, check the card's
activity light. If it is blinking, the problem is likely with the
hub or connection to the hub. If the activity light on the adapter
is not blinking, then there may be a problem with the driver or
the card. Contact HP. | Link
LED off. | Check RJ-45
connector, switch, hub, and cable. |
|
Printable version
