Cisco 2948G - Catalyst Switch Hardware-Fehlerbehebung - Seite 13
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bootup. Note any F for fail results.
f.
Remove the module and inspect for bent pins. Reseat the module, firmly press down the
ejector levers, and tighten the captive installation screws. If the show module status is still
faulty, try the module in another slot. If necessary, power off/on the switch. If status is still
faulty, the module has failed.
Switching module is not recognized
The most common cause for a switching module or a line card to not be recognized is due to the wrong
version of software.
1.
Determine that this is a problem with just one module and not all modules. If all modules are affected,
complete the steps in the System component LEDs are orange/red or supervisor not online section.
Capture the output the show version , show module , and show test 0 commands.
2.
Issue the show version command in order to check the model number of the module you have
problems with and the software version you use. Determine the total DRAM and total Flash. Refer to
the Module Overview section of Catalyst 4500 E−Series Module Installation Note in order to
determine if the hardware is compatible with the software.
If an upgrade is required, always check the release notes first. Refer to the to Catalyst 4500 Family
Release Notes and choose the version to which you need to upgrade. For example, choose the Release
Notes for Catalyst 4000 Family Software Release 5.x and search on any information in regards to
your hardware.
Refer to Managing Software Images and Working with Configuration Files on Catalyst Switches for
more information.
3.
If the supervisor is not stuck in boot or rommon and you have determined that the module is
supported by the current version of software, complete the steps for troubleshooting the Switching
Module in the System component LEDs are orange/red or supervisor not online section.
Module status is showing faulty or not ok
Complete these steps:
1.
Capture the show module and show test 0 command output.
2.
For any status other than ok in the output of these two commands, complete the troubleshooting steps
for the Switching Module in the System component LEDs are orange/red or supervisor not online
section.
Experiencing poor performance
Poor performance is often perceived to be a hardware issue, but this is usually not the case. When customers
describe to Cisco Technical Support that users on a particular switch experience slow performance, this often
turns out to be related to connectivity problems, software misconfiguration, or problems elsewhere on the
network.
1.
Identify whether performance issues occur for users connected to all switching modules, one module
in particular, or just users on one or more ports. Capture the show module and show test 0 command
output. Make sure that the supervisor and modules have an ok status. If there is a faulty status,
complete the troubleshooting steps for the Switching Module in the System component LEDs are
orange/red or supervisor not online section.
2.
Capture the show port <mod/port> , show Mac<mod/port> , and show counters <mod/port>
command output. If you see incrementing errors on port counters, troubleshoot this performance issue
as a connectivity issue. See the Seeing errors on the ports section for troubleshooting steps.