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Cisco Systems CSACS1121K9 Running the Carrier Busy Test

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Cisco Aironet 1100 Series Access Point Hardware Installation Guide

OL-4309-07

Chapter 5 Troubleshooting Autonomous Access Points

Running the Carrier Busy Test

Note The access point MAC address that appears on the Status page in the Aironet Client Utility (ACU) is the

MAC address for the access point radio. The MAC address for the access point Ethernet port is printed

on the label on the back of the access point.

Running the Carrier Busy Test

You can use the carrier busy test to find the least congested channel for the radio interface (802.11b).

You should typically run the test several times to obtain the best results and to avoid temporary activity

spikes.

Note The carrier busy test is primarily used for a single access point or a bridge environment. For sites with

multiple access points, a site survey is typically performed to determine the best operating locations and

operating frequencies for the access points.

Note All associated clients on the selected radio will be disassociated during the 6 to 8 seconds needed for the

carrier busy test.

Follow these steps to activate the carrier busy test:

Step 1 Open your web browser and enter the access point’s IP address in the browser address line. Press Enter.

An Enter Network Password window appears.

Step 2 Enter the administrator username and password. The default username is Cisco and the default password

is Cisco. The username and password are case sensitive.

Step 3 Click Network Interfaces and the Network Interface Summary page displays.

Step 4 Choose the radio interface experiencing problems by clicking Radio0-802.11B. The radio status page

displays.

Step 5 Click the Carrier Busy Test tab and the Carrier Busy Test page displays.

Step 6 Click Start to begin the carrier busy test.

When the test completes, the results are displayed on the bottom of the page. For each of the channel

center frequencies, the test produces a value indicating the percentage of time that the channel is busy.

Contents

Main Page CONTENTS Page Page Page Preface Audience Purpose Organization Conventions ix this manual. or loss of data. Related Publications Obtaining Documentation Cisco.com Product Documentation DVD Ordering Documentation Documentation Feedback Cisco Product Security Overview Reporting Security Problems in Cisco Products Product Alerts and Field Notices Obtaining Technical Assistance Cisco Support Website Locating the Product Serial Number Submitting a Service Request Definitions of Service Request Severity Obtaining Additional Publications and Information Page Overview Product Terminology Autonomous Access Points Lightweight Access Points Page Hardware Features Single Radio Operation Ethernet Port 1 2 3 5 6 4 LEDs Power Sources UL 2043 Certification Anti-Theft Features Network Examples with Autonomous Access Points Root Unit on a Wired LAN Repeater Unit that Extends Wireless Range Central Unit in an All-Wireless Network Workgroup Bridge Configuration Network Example with Lightweight Access Points Page Installing the Access Point Safety Information FCC Safety Compliance Statement General Safety Guidelines Warnings Unpacking the Access Point Package Contents Basic Installation Guidelines Access Point Layout and Connectors LEDs 1 2 3 5 6 4 Controller Discovery Process for Lightweight Access Points Deploying the Access Points on the Wireless Network Page 2-7 Cisco Aironet 1100 Series Access Point Hardware Installation Guide OL-4309-07 Chapter 2 Installing the Access Point Connecting the Ethernet and Power Cables Access Point Connecting the Ethernet and Power Cables Option 4 Figure 2-3 Access Point Power Options The access point power options are listed below: Power cord Universal power supply Connecting to an Ethernet Network with an Inline Power Source Connecting to an Ethernet Network with Local Power Powering Up the Access Point Page Mounting Instructions Overview Mounting on a Horizontal or Vertical Surface 1 4 43 3 42 Mounting on a Suspended Ceiling Page Mounting Above a Suspended Ceiling Using the Security Hasp Adapter Mounting on a Cubical Wall Partition Using the Desktop Holster Page Using the Cable Lock Feature Page 2.4-GHz Radio Upgrade for Autonomous Access Points Upgrade Overview Unpacking the Radio Removing the Back Cover Removing a 2.4-GHz Radio Installing a 2.4-GHz Radio Page Page Replacing the Back Cover Finding the Software Version Page Troubleshooting Autonomous Access Points Checking the Autonomous Access Point LEDs Page Checking Basic Settings Default IP Address Behavior Default SSID and Radio Behavior Enabling the Radio Interfaces SSID WEP Keys Security Settings Running the Carrier Busy Test Running the Ping or Link Test Resetting to the Default Configuration Using the MODE Button Using the Web Browser Interface Reloading the Access Point Image Using the MODE button Web Browser Interface Browser HTTP Interface Browser TFTP Interface Obtaining the Access Point Image File Obtaining the TFTP Server Software Page Troubleshooting Lightweight Access Points Guidelines for Using 1100 Series Lightweight Access Points Using DHCP Option 43 Checking the Lightweight Access Point LEDs Page Returning the Access Point to Autonomous Mode Using a Controller to Return the Access Point to Autonomous Mode Using the MODE Button to Return the Access Point to Autonomous Mode MODE Button Setting Obtaining the Autonomous Access Point Image File Obtaining the TFTP Server Software Page A Translated Safety Warnings Page B Declarations of Conformity and Regulatory Information Manufacturers Federal Communication Commission Declaration of Conformity Statement Tested To Comply With FCC Standards FOR HOME OR OFFICE USE VCCI Statement for Japa n IndustryCanada Canadian Compliance Statement Page Page Declaration of Conformity for RF Exposure Guidelines for Operating Cisco Aironet Access Points and Bridges in Japan Japanese Translation 03-5549-6500 Administrative Rules for Cisco Aironet Access Points in Taiwan All Access Points Chinese Translation Operation of Cisco Aironet Access Points in Brazil Access Point Models Regulatory Information Portuguese Translation Declaration of Conformity Statements Declaration of Conformity Statements for European Union Countries Page Page Page Page Page C Access Point Specifications Page Page Page D Channels and Maximum Power Levels Page E Priming Lightweight Access Points Prior to Deployment LWAPP Page Page F Configuring DHCP Option 43 for Lig htweight Access Points Overview Configuring Option 43 for 1000 Series Access Points Configuring Option 43 for 1100, 1130, 1200, 1240, and 1300 Series Access Points Page GLOSSARY A B C D E F G I M O P Q S T U W Page INDEX A B C O P R S