Cisco 2948G - Catalyst Switch Hardware-Fehlerbehebung
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Hardware Troubleshoot for Catalyst
4000/4912/2980G/2948G Series Switches
Document ID: 18935
Interactive: This document offers customized analysis of your Cisco
device.
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Preparation for Troubleshooting Hardware on Catalyst Switches
Online Troubleshooting Tools
Catalyst 4000 Family Troubleshooting Procedures
General Problem Solving Model
General Problem Solving Flow Chart
Common Problems
Symptom Description
System/Supervisor/Module Problems and Steps to Resolve Them
Supervisor Crashes and Steps to Resolve Them
Misleading Problems
show Command Descriptions
Related Information
Introduction
This document provides troubleshooting procedures on how to diagnose hardware problems on Catalyst 4000
family switches. The Catalyst 4000 family includes the 4003 and 4006 modular chassis and the 2948G,
2980G, and 4912G fixed models. The naming conventions for the Catalyst 4000 and Catalyst 2900 can be
very confusing. Refer to Understanding Catalyst 2900 and Catalyst 4000 Naming Conventions for more
information on how to help clarify these issues.
The goal is to help Cisco customers identify and fix some basic hardware issues, or to perform more extensive
troubleshooting before you contact Cisco Technical Support. An orderly troubleshooting process with the
collection of specific diagnostics ensures that information necessary to the resolution of the problem is not
lost. If you refine the scope of the problem, this saves valuable time in the search for a solution.
Prerequisites
Requirements
Cisco recommends that you have knowledge of these topics:
•
Catalyst 4000 Command Reference
•
How LAN Switches Work