Cisco Cisco Aironet 350 Wireless Bridge 기술 매뉴얼
Components Used
The information in this document is based on Cisco Aironet equipment.
Cisco Aironet equipment operates best when you load all the components with the most current version of
software. Upgrade to the latest versions of the software early within the troubleshooting process.
software. Upgrade to the latest versions of the software early within the troubleshooting process.
Note: You can download the latest software and drivers from Cisco Wireless Downloads.
The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.
Conventions
Refer to Cisco Technical Tips Conventions for more information on document conventions.
Problem Definition
A clear understanding of any problem is the first step to find a solution. This applies to networking issues.
Networks consist of many pieces that work together to achieve a common goalinterconnection. You must
understand the contribution that each piece makes to interconnection and the faults that each piece can
encounter.
Networks consist of many pieces that work together to achieve a common goalinterconnection. You must
understand the contribution that each piece makes to interconnection and the faults that each piece can
encounter.
A common approach to troubleshooting is also important. One methodology that this document follows is the
Open System Interconnection (OSI) model. This method works layer by layer to locate and resolve the
problem and does not skip layers or jump to immediate conclusions.
Open System Interconnection (OSI) model. This method works layer by layer to locate and resolve the
problem and does not skip layers or jump to immediate conclusions.
This document takes a step back in troubleshooting. The document does not simply look at the radio
frequency (RF) connections, but also examines the appropriate network components that work together as a
whole.
frequency (RF) connections, but also examines the appropriate network components that work together as a
whole.
This document looks at two cases of connectivity problems:
Connectivity ProblemsAP to Wired LAN
•
Connectivity ProblemsWireless Client to AP/Base Station (Radio Link)
•
What Changed?
In order to troubleshoot a wireless LAN that was operational and then stopped, step back and ask, "What
changed?"
changed?"
Did the firmware in the AP or Base Station Ethernet (BSE) change?
•
Did the client drivers change?
•
Did you change the firmware or client utilities?
•
If you upgrade any one part of the client software, such as the Aironet Client Utility (ACU), network driver
interface specification (NDIS) driver, or radio firmware, upgrade the other two parts to the revision that was
released at the same time. Refer to Cisco Wireless Downloads for the latest software releases.
interface specification (NDIS) driver, or radio firmware, upgrade the other two parts to the revision that was
released at the same time. Refer to Cisco Wireless Downloads for the latest software releases.