User Guide for the CiscoWorks Wireless LAN Solution Engine, 2.5
Radio Management
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Radio Management

Table Of Contents

Radio Management

Understanding the Radio Manager

Understanding the Radio Manager Features

Collecting Radio Location Measurements

Radio Monitoring

Setting Radio Monitoring Options

AP Radio Scan

Understanding AP Radio Scans

Creating a New AP Radio Scan

1. Name the Job and Select the Maximum Transmit Power

2. Select the APs

3. Schedule the Job

4. Finish the Job

Viewing AP Radio Scan Jobs

Filtering AP Radio Scan Jobs

Editing AP Radio Scan Jobs

Stopping AP Radio Scan Jobs

Deleting AP Radio Scan Jobs

Copying AP Radio Scan Jobs

Viewing the AP Radio Scan Job Run Log

Refreshing the AP Radio Scan Job Summary

Client Walkabout

Understanding Client Walkabouts

Client Walkabout Guidelines

Creating a New Client Walkabout

1. Name the Walkabout

2. Select the APs

3. Enter Client MAC Addresses

4. Enter Walkabout Options

5. Finish Creating the Walkabout

Running the Walkabout

Viewing Client Walkabouts

Editing Client Walkabouts

Deleting Client Walkabouts

Starting Client Walkabouts

Stopping Client Walkabouts

Viewing Walkabout Session Details

Viewing AP Location Details

Refreshing the Walkabouts Summary

Location Manager

Understanding the Location Manager Window

Using Location Manager Measuring Tool

Using Location Manager Contrast Sliding Tool

Using Location Manager Channel Color Key

Using Location Manager Radio Location Color Key

Zooming In and Out

Locating Devices in Location Manager

Obtaining Server Information

Verifying Server Status

Viewing Server Messages

Changing Location Manager Display Options

Modifying Device Name Display

Modifying Floor Map Display Options

Modifying AP Coverage Display Options

Adding Building Information

Importing an Image of the Building

Adding Floor Information

When You Don't Know Floor Dimensions

Adding Devices to the Floor Map

Moving Devices on Image Map

Finding Unknown Radios

Displaying Unknown Radios in the Floor Map

Using the Assisted Site Survey Wizard

1. Selecting the APs

2. Viewing Radio Scan Data

3. Performing a Client Walkabout

4. Generating Radio Parameters

Radio Management Assisted Configuration

Viewing Assisted Configuration Tasks

Editing Assisted Configuration Tasks

Copying Assisted Configuration Tasks

Deleting Assisted Configuration Tasks

Viewing Details of a Configuration Task

Refreshing the List of Configuration Tasks

Creating a New Assisted Configuration Task

1. Naming the Configuration Task

2. Selecting Devices

3. Assigning Constraints and Goals

4. Calculating Parameters

5. Viewing the Calculated Results

6. Scheduling the Assisted Configuration

7. Finishing the Task

Managing RM Measurements


Radio Management


The Radio Manager tab displays information to help you manage your WLAN radio environment. All the device information shown under this tab is polled from the managed devices in your network.

The Radio Manager tab includes these options:


Note Some subtabs may not be visible to some users.


Radio Monitoring—See Radio Monitoring

AP Radio Scan—See AP Radio Scan

Client Walkabout—See Client Walkabout

Location Manager—See Location Manager

RM Assisted Configuration—See Radio Management Assisted Configuration

Manage RM Measurements—See Managing RM Measurements

Related Topics

Understanding the Radio Manager

Understanding the Radio Manager

The Radio Manager features simplify the deployment, expansion, and day-to-day management of the WLAN by:

Automatically configuring network-wide radio parameters during initial deployment and network expansion.

Continuously monitoring the radio environment, detecting interference and rogue APs, and alerting the WLAN administrator to radio network changes.

Providing information to help visualize the network radio topology, including the path loss between APs and RF coverage.

The following topics provide a high-level overview of how the Radio Manager collects data and uses this data to help you manage your WLAN:

Understanding the Radio Manager Features

Collecting Radio Location Measurements

Understanding the Radio Manager Features

The Radio Manager provides these features:

Rogue AP detection

The Radio Monitoring feature uses the radio measurement capabilities on Cisco IOS APs (1100, 1200) and Cisco client adaptors to discover any new 802.11 APs that are transmitting beacons. Both clients and APs periodically scan for other 802.11 beacon frames on both serving channels and neighboring channels. Reports of detected beacons are returned to the Radio Manager, which validates the detected beacons against a list of APs known to be authorized to provide wireless access.

A newly discovered AP that cannot be qualified as being a known authorized AP generates an administrator alert. You can categorize this new AP as one of the following AP types:

Managed AP—An AP that is authorized to provide wireless access to the LAN and requires management services provided by the WLSE.

Unmanaged AP—An AP that is authorized to provide wireless access to the LAN but does not require any management services from the WLSE.

Friendly AP—An AP that is not connected to the LAN, but is known to be detectable by client's or AP's 802.11 radios within the managed WLAN. A Friendly AP is an AP that you know exists, for example, a neighboring network's AP, but that you are not going to modify in any way.

Rogue AP—An AP that may or may not be connected to the LAN, is detected by client's or AP's 802.11 radios within the managed WLAN, and has not been identified as Friendly. By default, all unknown radios are classified as Rogue until you change them to Friendly.

Interference detection

You can initiate interference detection when you activate Radio Monitoring. Only APs in the radio monitoring list participate in interference detection; clients can detect interference as well. You can define what level of signal strength and duration of signal is required to detect interference. When interference is determined to be present, an alert is generated.

Automatic radio parameter generation

The Radio Manager can generate optimal values for the radio parameters of a given group of APs. Each set of radio parameters can modify the following:

AP frequency

AP transmit power

AP beacon interval

When computing new radio configuration parameters, select any combination of parameters that may be altered. After the desired parameters are selected, the Radio Manager is given free reign to alter each parameter as it sees fit.

Related Topics

Collecting Radio Location Measurements

Collecting Radio Location Measurements

The Radio Manager characterizes the WLAN radio environment using the following radio location measurements obtained from Cisco APs and Cisco clients:

Beacon—To determine path loss and detect AP rogues (serving channel and non-serving channels).

Channel load and noise histogram—To characterize the degree of contention and interference (serving channel only).

The Assisted Site Survey (see Using the Assisted Site Survey Wizard) can walk you through the process of determining the optimal radio transmit power and channel selection. It helps you select APs, run an AP radio scan job, perform a client walkabout, and generate radio parameters for the selected APs.

You can also choose to run these features manually. The following table summarizes which procedures produce the data required by the different Radio Manager features:

Feature
Run these procedures
Results are used in:

Rogue AP detection

Radio Monitoring

AP Radio Scan

Location Manager

Faults

Interference detection

Radio Monitoring

Faults

Automatic radio parameter generation

AP Radio Scan

Client Walkabout (recommended)

RM Assisted Configuration

Location Manager

Radio Manager Reports


The results produced by these features constitute the radio knowledge base. This knowledge base (see Figure 7-1) is saved in the WLSE database and accessed by other Radio Manager features.

Figure 7-1 Radio Data Collection and Knowledge Base

Several Radio Manager procedures are used solely to generate measurement requests and collect the results:

Radio Monitoring periodically gathers radio frequency statistics and identifies specific signal sources. It continuously monitors the radio frequency environment and generates alerts when new APs appear.


Tip This feature is your primary means of detecting rogue APs.


AP Radio Scan sets selected APs to transmit beacons on the same channel and detects all neighboring APs. This feature measures the path loss between each AP and every other AP it can hear and scans other channels to detect rogue APs.


Tip Run AP radio scans during initial setup, then periodically to capture any changes made to the APs (added, deleted, or moved).


Client Walkabouts provide optimal coverage for the radio parameter generator (see Radio Management Assisted Configuration). During a walkabout, the client (typically a laptop) is carried throughout the desired coverage area and continuously reports radio measurements back to its serving AP.


Tip If you do not perform a client walkabout, you must enter a floor plan that includes the distances between APs (see Adding Building Information).


Related Topics

Understanding the Radio Manager Features

Using the Assisted Site Survey Wizard

Radio Monitoring

AP Radio Scan

Client Walkabout

Radio Monitoring

Radio Monitoring runs on the specified Cisco IOS APs and its associated CCX-compliant clients to continuously monitor the WLAN radio environment and discover any new APs that are transmitting beacons. The channel measurements are used for radio configuration, rogue AP discovery, and interference detection.


Note Radio Monitoring is your primary means of detecting rogue APs.


Use the Radio Monitoring option to:

Specify the serving channel monitoring option (APs, clients, or both)

Specify the non-serving channel monitoring option (to monitor channels the AP is not transmitting on)

Specify the group of APs and clients to perform the channel measurements


Tip Leave Radio Monitor continuously running on your network so new APs are discovered promptly, the necessary faults are generated, and your reports are accurate and up-to-date.


An AP can be added to the Radio Monitoring list and also be included on an AP Radio Scan or Client Walkabout; the measurement requests for these two features supersede the monitoring measurement requests. When the other, shorter term procedures end, the APs are returned to the normal radio monitoring mode.


Note Your login determines whether you can use this option.


Related Topics

Setting Radio Monitoring Options

Collecting Radio Location Measurements

Setting Radio Monitoring Options

To detect interference and rogue APs, radio monitoring must be running.


Tip Leave Radio Monitor continuously running on your network so new APs are discovered promptly, the necessary faults are generated, and your reports are accurate and up-to-date.


Prerequisites

Before you can select devices to be included in radio monitoring, you must have already:

Discovered the devices (see Managing Device Discovery).

Made the devices managed (see Managing and Unmanaging Devices).

Authenticated the devices with WDS (see Setting WDS Thresholds).

Procedure


Step 1 Select Radio Manager > Radio Monitoring. The Radio Monitoring Options window appears.

Step 2 Click Enable to monitor your WLAN environment.

Step 3 For Serving Channel Monitoring, select one or both of the following check boxes for measurements on the channel the devices are configured to:

APs to perform monitoring measurements on the Cisco IOS APs on the serving channel.

Clients to perform monitoring measurements on CCX-compliant clients on the serving channel.

Step 4 For Non-Serving Channel Monitoring, select one or both of the following check boxes to measure other channels in the band:

APs to perform monitoring measurements on the Cisco IOS APs on the non-serving channels.

Clients to perform monitoring measurements on CCX-compliant clients on the non-serving channels.


Note Non-serving channel monitoring means that the channels the AP is not transmitting on are monitored. By monitoring non-serving channels, Radio Manager can detect rogue APs that you might not have discovered had it monitored only the channel the AP is transmitting on (the serving channel).


Step 5 Click Select AP. All managed devices are listed in the Device selector in the middle pane.

Step 6 Select the devices you want to monitor (see Using the Device Selector and Search).

Now that you have selected your radio monitoring options, you need to save your settings.

Step 7 Click Finish. The Finish dialog box appears.

Step 8 Click Save to save your radio monitoring options.

Radio Monitor will now begin monitoring the devices you selected. Radio Monitoring takes measurements every 90 seconds.


Related Topics

Collecting Radio Location Measurements

Client Walkabout

Location Manager

AP Radio Scan

The AP Radio Scan feature produces path loss data used for rogue location estimations, radio parameter generation data, and coverage display data.


Note The Assisted Site Survey wizard can walk you through the process of determining the optimal radio transmit power and channel selection. It helps you select APs, run an AP radio scan job, perform a client walkabout, and generate radio parameters for the selected APs. See Using the Assisted Site Survey Wizard.


Related Topics

Understanding AP Radio Scans

Creating a New AP Radio Scan

Viewing AP Radio Scan Jobs

Editing AP Radio Scan Jobs

Understanding AP Radio Scans

AP radio scans produce path loss data used for rogue location estimations, radio parameter generation data, and coverage display data. This data is used to determine:

How an AP is positioned related to other APs

The amount of path loss due to obstructions (such as walls) between APs

These channel measurements, when combined with other data generated by Radio Monitoring and Client Walkabout, are used for radio configuration, rogue AP discovery, and interference detection.

The AP Radio Scan option allows you to:

Specify a group of APs that will participate in the scan procedure.

Change the maximum transmit power level.

Schedule the new job to run immediately or at a certain date and time. You can also specify whether this job will run only once or periodically.

During the scanning process, an AP radio scan performs the following tasks:

1. Sets the selected APs to the same channel at maximum power.

During a scan, AP frequencies and power levels are temporarily changed but no data rates are modified. For each AP, the channel is fixed and the procedure steps through the power levels up to the maximum transmit power level you have specified.

The radio scan uses temporary configuration parameters so the AP can revert back to its normally configured parameters if the AP is reset or loses connection with the WLSE during the procedure.

2. Measures the signal strength of each AP.

3. Calculates the path loss of each AP.

4. Steps through the power levels to determine the power step calibration of each AP.

5. Saves this information in the database as AP radio locations.

6. Sets all APs back to their original power and channel settings.

Related Topics

Creating a New AP Radio Scan

Creating a New AP Radio Scan

You should run an AP Radio scan:

During initial setup.

After adding, deleting, or moving APs.

You might also choose to run an AP scan periodically to capture any changes made to the APs. You can create multiple scan jobs, but only one job can be run at a time.


Note A running scan job temporarily degrades wireless LAN service, which might affect client associations. To minimize any disruption, schedule scan jobs to run during off-hours.



Note Your login determines whether you can use this option.


Prerequisites

Before you can run an AP Radio scan job, you must have already:

Discovered the devices (see Managing Device Discovery).

Made the devices managed (see Managing and Unmanaging Devices).

Authenticated the devices with WDS (see Setting WDS Thresholds).

Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 Enter a name for the job and click New Job. For guidelines on job names, see "Naming Guidelines."

Step 3 The window refreshes with the Job Creation menu in the left pane and the Job Name dialog box in the right pane.

Step 4 Select the following numbered choices in the left pane to create and run the AP radio scan jobs:


Note These steps, except Schedule Job, must be completed, but do not have to be done in order. You can omit scheduling the job and edit the job later to provide a schedule.


1. Job Name—See 1. Name the Job and Select the Maximum Transmit Power.

2. Select Devices—See 2. Select the APs.

3. Schedule Job—See 3. Schedule the Job.

4. Finish—See 4. Finish the Job.


Caution Clicking on any subtab before you have saved your entries in the Job Creation window will reset the window and you will lose all the information you entered.


Related Topics

Understanding AP Radio Scans.

1. Name the Job and Select the Maximum Transmit Power

Procedure


Step 1 Click Job Name.

Step 2 Enter the following information:

Field
Description

Job Name

Enter a unique name for the job. For guidelines on naming jobs, see "Naming Guidelines."

Description

Enter a description of the job. For guidelines on entering descriptions, see "Naming Guidelines."

Maximum Transmit Power

By default, the power level is set to the maximum value allowed on the AP or the maximum allowed by the regulatory domain.

You might choose to enter a lower power setting when, for example, the default power level might affect a neighboring network.


Step 3 From the menu in the left pane, go to the next step, Select AP. (See 2. Select the APs.)


Related Topics

Copying AP Radio Scan Jobs

Creating a New AP Radio Scan

2. Select the APs

Procedure


Step 1 Click Select AP. All managed devices are listed in the Device selector in the middle pane.

Step 2 Select the devices you want to include in the job (see Using the Device Selector and Search).

Step 3 From the menu in the left pane, go to the next step, Schedule Job. (See 3. Schedule the Job.)


Related Topics

Creating a New AP Radio Scan

3. Schedule the Job

When scheduling an AP radio scan job, you can select Run Now to start the job immediately, or you can schedule the job for a future date and time. You can also save a job without scheduling it, then edit the job later to add the scheduling information.


Note A running scan job temporarily degrades wireless LAN service, which might affect client associations. To minimize any disruption, schedule scan jobs to run during off-hours.


Procedure


Step 1 Click Schedule Job.

Step 2 Enter the following information:

Field
Description

Run Now

Click to run the job. The job will run immediately after you click Save (see 4. Finish the Job).

Note This option ignores all of the other scheduling options (Start Date, Start Time, and Repeat).

Start Date

From the lists, select the month, day, and year you want your job to run.

Start Time

From the list, select the hour and minutes of the day you want your job to run.

Repeat

Enable

Check to run the job repeatedly.

Every

Indicate how often you want the job to repeat by entering a numerical value, then selecting an interval of time: Hours, Days, Weeks, or Months.

Note Selecting this option runs the job periodically, starting with the date and time that you entered in the Start Date and Start Time lists.


Step 3 From the menu in the left pane, select the next task, Finish. (See 4. Finish the Job.)


Related Topics

Editing AP Radio Scan Jobs

Deleting AP Radio Scan Jobs

Creating a New AP Radio Scan

4. Finish the Job

Before selecting this option, you must name the job and select the maximum transmit power, select the devices, and schedule the job.

Procedure


Step 1 Click Finish in the left pane to complete job creation.

Step 2 Click Save to add the job to the list of scheduled jobs or run the job now, depending on whether you scheduled the job for a later time or chose Run Now in the scheduling screen.

The screen refreshes and the AP Radio Scan Job Save Summary window shows the following information:

Field
Description

Name

Name of the job.

Description

Job description, if any.

Maximum Power

The maximum power setting selected for the job.

Selected APs

Names of the devices selected for the job.

Schedule

Scheduled date and time for the job, or No Schedule if the job has not been scheduled.


Step 3 To view the job run log, see Viewing the AP Radio Scan Job Run Log.

The job stops automatically after all the required APs respond with the appropriate radio measurements. To stop the job manually, see Stopping AP Radio Scan Jobs.

Step 4 After the AP Radio Scan has completed successfully, you are ready to run a client walkabout (see Client Walkabout).


Related Topics

Viewing AP Radio Scan Jobs

Deleting AP Radio Scan Jobs

Creating a New AP Radio Scan

Viewing AP Radio Scan Jobs

Use this screen to view AP radio scan jobs.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 From the Job State list, select the type of job you want to view:

Scheduled—Lists all AP radio scan jobs that have been scheduled

Unscheduled—Lists all AP radio scan jobs that have not been scheduled

Running—Lists all AP radio scan jobs that are currently running

All—Lists all AP radio scan jobs

The screen refreshes to show you details about the specified jobs. The information displayed depends on the Job State you selected: Scheduled and Unscheduled, Running, or All.

Scheduled and Unscheduled

Field
Description

Job Name

The job name.

Recurring

Indicates if the job is run periodically (Yes or No).

Next Schedule

For scheduled jobs, this indicates when the job will run. For completed jobs, this is the time the job ran.

Owner

The user who last edited the job.


Running

Field
Description

Job Name

The job name.

Recurring

Indicates if the job is run periodically (Yes or No).

Job Start Time

The time the job started.

Percent Complete

The percent of the job that has completed running.

Next Schedule

Firmware jobs are not recurring.

Owner

The user who last edited the job.


All

Field
Description

Job Name

The job name.

Recurring

Indicates if the job is run periodically (Yes or No).

Job State

The state of the job.

Note A job in the DidNotStart state must be rescheduled.

Next Schedule

For scheduled jobs, this indicates when the job will run. For completed jobs, this is when the job ran.

Last Run Status

The status of the job the last time it was run.

Owner

The user who last edited the job.


Step 3 To sort table data, click on the corresponding heading (see Sorting Table Data).

Step 4 From this window, you can:

Filter the list of AP radio scan jobs—See Filtering AP Radio Scan Jobs

Edit a job—See Editing AP Radio Scan Jobs

Stop a job—See Stopping AP Radio Scan Jobs

Delete a job—See Deleting AP Radio Scan Jobs

Copy a job to create a new job—See Copying AP Radio Scan Jobs

View the AP radio scan job run log—See Viewing the AP Radio Scan Job Run Log

Refresh the screen—See Refreshing the AP Radio Scan Job Summary


Filtering AP Radio Scan Jobs

Use this option to display a limited set of AP radio scan jobs, making it easier to search for a particular job by name.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 Click Filter.

Step 3 Enter the name, or part of the name. You can use % as a wildcard: for example, entering %name% displays all the jobs that contain the word "name."

Step 4 Click Apply. The Job window refreshes and the matching jobs are displayed in the Jobs list.


Note The filter remains in effect until the page is refreshed.



Editing AP Radio Scan Jobs

Use this option to edit jobs from the displayed list of jobs.


Note If you have deleted the image that was associated with the job you are editing, the job will show that no image has been selected.



Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 From the list of jobs, select the job you want to edit.

Step 3 Click Edit.

Step 4 Select choices in the Job Creation Menu. For descriptions of the choices, see Creating a New AP Radio Scan.


Stopping AP Radio Scan Jobs

Use this option to stop a running AP Radio Scan job.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 From the Job State list, select Running.

Step 3 Select the job you want to stop.

Step 4 Click Stop.

Step 5 Click OK in the popup window.


Deleting AP Radio Scan Jobs

Use this option to delete jobs from the displayed list of jobs. Jobs that are scheduled, unscheduled, completed, or did not start can be deleted. Jobs that are running cannot be deleted.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 From the list of jobs, select the job you want to delete.

Step 3 Click Delete.

Step 4 Click OK in the popup window.


Copying AP Radio Scan Jobs

Use this option to create a new job using the data (maximum transmit power and selected APs) from a previously-created job. This option does not copy the schedule data.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 From the list of jobs, select the job you want to copy.

Step 3 Click Copy Job.


Note This option does not copy the schedule data.


Step 4 Enter the name for the new job in the popup window.

Step 5 Click OK.


Viewing the AP Radio Scan Job Run Log

Use this option to view the run logs for a selected job.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan.

Step 2 From the All AP Radio Scan Jobs table, select a job, then click Job Run Log.

Step 3 The Job Runs table appears in a separate browser window. This table contains the following information for each run:

Field
Description

Select Run

Select this button to see the details for that run.

The details for the selected job run appear below the list of runs for that job.

Job Start Time

The time the job started.

Job End Time

The time the job ended.

Job Status

The status of the job.

Percent Complete

The percent of the job that completed.


This table also provides the following options:

To sort table data, click on the corresponding heading (see Sorting Table Data).

To view the details for a different job run, select another run and click Job Run Log. The details for the selected run appear below the list of runs.

To view the AP location information collected during a job run, select the run and click AP Location Information.


Note AP location information is available only for the most recently completed AP radio scan job.


The AP Location Information table contains the following information:

Field
Description

AP Name

The name of the access point

IP Adress

The IP address for that access point.

Has Scan Data

Whether scan data was collected for this access point (YES or NO).

Neighbors

The number of neighboring access points that have been detected.

Last Scan Time

The date and time this scan was run.


To refresh the table, click Refresh.


Refreshing the AP Radio Scan Job Summary

If you made recent changes to one or more AP radio scan jobs, you can refresh the job list to make sure you are looking at the latest information.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > AP Radio Scan. The list of AP radio scan jobs appears.

Step 2 From the Job State list, select the type of job you want to view.

Step 3 Click Refresh. The screen shows an updated list of the currently displayed jobs.


Client Walkabout

Client Walkabout measurements are used to determine AP coverage. This data is used to provide optimal coverage for the radio parameter generator.


Note The Assisted Site Survey wizard can walk you through the process of determining the optimal radio transmit power and channel selection. It helps you select APs, run an AP radio scan job, perform a client walkabout, and generate radio parameters for the selected APs. See Using the Assisted Site Survey Wizard.


Related Topics

Understanding Client Walkabouts

Client Walkabout Guidelines

Creating a New Client Walkabout

Viewing Client Walkabouts

Editing Client Walkabouts

Understanding Client Walkabouts

The Client Walkabout option allows you to:

Specify a group of APs that will participate in the walkabout.

Specify the maximum transmit power level.

During a client walkabout, up to five client stations, each identified by its 802.11 MAC address, are walked around the coverage area of the WLAN or a portion of the WLAN. The APs are set to the same channel and the transmit power in the APs is increased so that the power required to cover the edges of the WLAN can be determined.

A client walkabout station continuously reports radio measurements back to its serving AP as it roams throughout the coverage area. All measurements are passed to the Radio Manager, which incorporates them into its radio environment database.


Note If you choose not to perform a client walkabout, you must enter a floor plan that includes the distances between APs (see Adding Floor Information).


Related Topics

Creating a New Client Walkabout

Client Walkabout Guidelines

Collecting Radio Location Measurements

Client Walkabout Guidelines

Although there is no limit to the number of APs that may participate in a walkabout and no performance impact when you include a large number of APs, the total number of data points collected during a walkabout session does affect the processing time of RM Assisted Configuration—the larger the data set, the longer it takes to calculate the parameters.

To minimize the time it takes to calculate the radio parameters, try to use these guidelines when performing the walkabout:

Walk around the proximity of each AP for which you want coverage for approximately 2 minutes. At a rate of capturing one walkabout location every 10 seconds, this will yield about 12 walkabout locations over a 2-minute period. For a floor that contains 10 APs, this translates to a 20-minute walkabout that covers the perimeter of the floor as well as the areas between different APs.

If you use the Location Manager's RM Assisted Wizard (see Using the Assisted Site Survey Wizard), you can also see the walkabout results in a table that includes each AP and the number of walkabout locations that can hear that AP. If a location can hear multiple APs, it will be counted multiple times, once per AP. Therefore, the sum of the total location numbers across all selected APs may be (and almost always is) larger than the total number of actual walkabout locations.

You can run RM Assisted Configuration either on a per-building or per-floor basis. You will usually get better channel combinations if you run RM Assisted Configuration for an entire building.

A longer walkabout will generate more location data. Although collecting more location samples can improve the parameter generation results, it will also increase the number of computations. For a floor consisting of the 10 APs described above, a WLSE1105 will take 10 to 12 minutes or less to complete the parameter generation process—without other jobs, such as inventory, configuration, discovery, or another Radio Manager task running simultaneously.


Note Because the WLSE1130 is a higher performance product, its parameter generation speed will be significantly better than a WLSE1105.


Related Topics

Creating a New Client Walkabout

Understanding Client Walkabouts

Creating a New Client Walkabout

Use this option to create a client walkabout session.


Note Your login determines whether you can use this option.


Prerequisites

Before you can run a client walkabout, you must have already:

Discovered the devices (see Managing Device Discovery).

Made the devices managed (see Managing and Unmanaging Devices).

Authenticated the devices with WDS (see Setting WDS Thresholds).

Configured the walkabout client to associate with the APs selected for the walkabout.

Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 Click New.

The window refreshes with the Client Walkabout menu in the left pane and the Client Walkabout Name dialog box in the right pane.

Step 3 Select the following numbered choices in the left pane to create a client walkabout:


Note All these steps must be completed, but do not have to be done in order.


1. Name—See 1. Name the Walkabout.

2. Select AP—See 2. Select the APs.

3. Enter Client MAC—See 3. Enter Client MAC Addresses.

4. Options—See 4. Enter Walkabout Options.

5. Finish—See 5. Finish Creating the Walkabout.


Caution Clicking on a any subtab before you have saved your entries in the Job Creation window will reset the window and you will lose all the information you entered.

Step 4 To run the client walkabout, see Running the Walkabout.


Related Topics

Client Walkabout Guidelines

1. Name the Walkabout

Procedure


Step 1 Click Name.

Step 2 Enter the following data:

Field
Description

Job Name

Enter a unique name for the walkabout.

To make each session easy to identify, consider including the floor number or a similar identifier in the job name.

For additional naming convention guidelines, see "Naming Guidelines."

Description

Enter a description of the walkabout. For guidelines on entering descriptions, see "Naming Guidelines."


Step 3 From the menu in the left pane, go to the next step, Select AP. (See 2. Select the APs.)


Related Topics

Creating a New Client Walkabout

2. Select the APs

Procedure


Step 1 Click Select AP. All managed devices are listed in the Device selector in the middle pane.

Step 2 Select the APs you want to include in the session (see Using the Device Selector and Search).


Note In each walkabout session, include only the APs on that floor (see Client Walkabout Guidelines).


Step 3 From the menu in the left pane, go to the next step, Enter Client MAC. (See 3. Enter Client MAC Addresses.)


Related Topics

Creating a New Client Walkabout

3. Enter Client MAC Addresses

Procedure


Step 1 Click Enter Client MAC.

Step 2 Enter the 802.11 MAC addresses for up to five clients, or select up to five MAC addresses from the Most Recent dropdown list.


Note Entering a MAC address that consists of more than 12 characters will generate an error message.


Step 3 From the menu in the left pane, select the next task, Options. (See 4. Enter Walkabout Options.)


Related Topics

Creating a New Client Walkabout

4. Enter Walkabout Options

During a walkabout, the transmit power in the APs is increased so that the power required to cover the edges of the WLAN can be determined. Use this option to reset the maximum transmit power level used by the APs.

Procedure


Step 1 Click Options.

Step 2 Select the AP power setting.

By default, the power level is set to the maximum value allowed on the AP or the maximum allowed by the regulatory domain. You might choose to enter a lower power setting when, for example, the default power level might affect a neighboring network.

Step 3 From the menu in the left pane, select the next task, Finish. (See 5. Finish Creating the Walkabout.)


Related Topics

Creating a New Client Walkabout

5. Finish Creating the Walkabout

Before selecting this option, you must name the walkabout, select the devices, enter the client MAC addresses, and choose the AP power setting option.

Procedure


Step 1 Click Finish in the left pane.

Step 2 Click Save to add the walkabout to the list of client walkabouts. The screen refreshes and the Client Walkabout Summary window shows the following information:

Field
Description

Name

Name of the walkabout.

Description

Walkabout description, if any.

Power Mode

AP power setting selected for the walkabout.

Maximum Power

The value of the AP power setting. This field is populated only if you entered a value in Use No More Than __ mW (see 4. Enter Walkabout Options).

Devices

Names of the AP devices selected for the walkabout.

Client MAC Address

The list of client MAC addresses to be used during the walkabout.


Step 3 To run the walkabout, see Running the Walkabout.


Related Topics

Creating a New Client Walkabout

Running the Walkabout

When you start a client walkabout, the walkabout session starts immediately and continues until you stop the procedure. Only one client walkabout session can be active at any time.


Note The Client Walkabout feature temporarily degrades wireless LAN service, which might affect client associations. You should run a walkabout session during off-hours to minimize any disruptions to the network.


Prerequisites

You must have successfully created a client walkabout session (see Creating a New Client Walkabout).

Procedure


Step 1 Take the client (typically a laptop) to the area where the walkabout will be run.

Step 2 Select Radio Manager > Client Walkabout. A list of the current Client Walkabout sessions appears.

Step 3 Select the name of the client walkabout session that you want to run from the list.

Step 4 Click Start.

Step 5 To set the coverage area, walk the client (the laptop) around the area. Use these guidelines as you walk:

Walk at a slow, measured pace. The client takes measurements every 10 seconds, so if you walk too quickly, you will not collect enough data points.

Walk the edges of the network.

Emphasize areas where you want coverage, such as conference rooms and other enclosed areas.

For more information about collecting walkabout data, see Client Walkabout Guidelines.

Step 6 When you have finished collecting the data, stop the walkabout. Select the walkabout session name from the list and click Stop.


Note The client will continue taking measurements if you do not explicitly stop the process.


Step 7 To view the results of the walkabout:

Click Detailed to view walkabout details (see Viewing Walkabout Session Details.)

Click Walkabout Details to view the AP locations collected during a walkabout (see Viewing AP Location Details).

You can also use the Location Manager (see Location Manager) to view the results of the walkabout session.


Related Topics

Viewing Client Walkabouts

Starting Client Walkabouts

Stopping Client Walkabouts

Viewing Client Walkabouts

Use this screen to view client walkabout sessions.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 From the Client Walkabout State list, select the type of walkabout whose status you want to check (Running or All). The window refreshes and the walkabouts are displayed.

Field
Description

Name

The client walkabout name.

Status

The status of the walkabout.

Last Run Started

The time the last run of this client walkabout was started.

Last Run Stopped

The time the last run of this client walkabout was stopped.

Owner

The user who last edited the job.


Step 3 To sort table data, click on the corresponding heading (see Sorting Table Data).

Step 4 From this window, you can:

Edit a walkabout—See Editing Client Walkabouts.

Delete a walkabout—See Deleting Client Walkabouts.

Start a walkabout—See Starting Client Walkabouts.

Stop a walkabout—See Stopping Client Walkabouts.

View walkabout run details—See Viewing Walkabout Session Details.

View the AP locations collected during a walkabout—See Viewing AP Location Details

Refresh the screen—See Refreshing the Walkabouts Summary.


Editing Client Walkabouts

Use this option to edit a walkabout from the displayed list of walkabouts.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 From the list of walkabouts, select the walkabout that you want to edit.

Step 3 Click Edit.

Step 4 Select choices in the Client Walkabout Creation Menu. For descriptions of the choices, see Creating a New Client Walkabout.

Step 5 Click Save to save your changes. The Client Walkabout Save Summary displays the new settings for this walkabout.


Deleting Client Walkabouts

Use this option to delete a walkabout from the displayed list of walkabouts. Walkabouts that are running cannot be deleted.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 From the list of walkabouts, select the walkabout that you want to delete.

Step 3 Click Delete.

Step 4 Click OK in the popup window.


Starting Client Walkabouts

Use this option to start a client walkabout.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 From the list of walkabouts, select the walkabout that you want to start.

Step 3 Click Start.


Stopping Client Walkabouts

Use this option to stop a running walkabout.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 From the list of walkabouts, select the walkabout that you want to stop.

Step 3 Click Stop.


Viewing Walkabout Session Details

Use this option to view the details of a client walkabout session.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 Select a walkabout, then click Detailed.

Step 3 The Client Walkabout Details window shows the following information:

Field
Description

Name

Name of the walkabout.

Description

Walkabout description, if any.

Power Mode

AP power setting selected for the walkabout.

Max. Power

The value of the AP power setting. This field is populated only if you entered a value in Use No More Than __ mW (see 4. Enter Walkabout Options).

Selected APs

Names of the AP devices selected for the walkabout.

Client MAC Address

The list of client MAC addresses to be used during the walkabout.

Status

The status of the walkabout.

Last Run Started

The time the last run of this client walkabout was started.

Last Run Stopped

The time the last run of this client walkabout was stopped.



Viewing AP Location Details

Use this option to view the AP locations collected during a client walkabout session.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout.

Step 2 Select a walkabout, then click Walkabout Details.


Note AP location information is available only for the most recently completed walkabout. If a new walkabout session is in progress, this information is not available for the latest completed walkabout.


Step 3 The Client Walkabout Details window shows the following information:

Field
Description

AP Name

The name of the access point

IP Adress

The IP address for that access point.

Number of Location Data

The number of location data points collected for that access point.



Refreshing the Walkabouts Summary

You can refresh the list of walkabouts to make sure you are looking at the latest information.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > Client Walkabout. The list of client walkabout sessions appears.

Step 2 From the Client Walkabout State list, select the type of walkabouts you want to view (Running or All).

Step 3 Click Refresh. The screen shows an updated list of the currently displayed walkabouts.


Location Manager

The Location Manager gives you a graphical view of the APs on each floor of your building(s). Location Manager also uses the radio monitoring channel measurements supplied by all managed devices and client stations to calculate the location of unknown APs in your network. It provides a location estimate using measurements from as few as one station, regardless of type. The accuracy of the measurements depends on the number of devices that the measuring entity can detect from the given location.

Location Manager supports up to 1,500 buildings per location with a maximum of 100 floors per building and a maximum of 100 APs per floor.

Location Manager allows you to

View the location of APs in your building (see Adding Building Information.)

View the relative location of unknown or rogue APs (see Finding Unknown Radios)

Determine optimal radio transmit power and channel selection (see Using the Assisted Site Survey Wizard)

Display the predicted coverage of APs (see Modifying AP Coverage Display Options)

Prerequisites

Before you can use Location Manager, you must have already:

Discovered the devices (see Managing Device Discovery).

Authenticated the devices with WDS (see Setting WDS Thresholds).

For more information about navigating in the Location Manager window, see Understanding the Location Manager Window.

Understanding the Location Manager Window

In the upper left pane of the Location Manager window, you expand the All Locations folder to display the buildings and corresponding floors that you added.

Managed devices appear in the pane in the lower left pane of the Location Manager window. You need to initiate a discovery before they appear in this window. See Managing Device Discovery for more information.

The summary window in the right pane displays the number of APs in Managed state and Unmanaged state. You can double-click on the name of an AP to center the AP in the display of the floor map. For more information about adding devices to the floor map, see Adding Devices to the Floor Map.

In addition, the All Locations Summary also gives you the number of

Access Points in Managed State—The number of managed APs

Access Points in Unmanaged State—The number of unmanaged APs

Active Alarm Counts—The number of major and minor alarms currently in your network.

Major Alarm Counts—P1 and P2 alarms (see Viewing Fault Information)

Minor Alarm Counts—P3, P4, and P5 alarms (see Viewing Fault Information)

Location Manager includes several tools that you can use:

Measuring Tool (See Using Location Manager Measuring Tool.)

Modify Contrast Tool (See Using Location Manager Contrast Sliding Tool.)

Channel Color Key (See Using Location Manager Channel Color Key.)

Locate Device Tool (See Locating Devices in Location Manager.)

Using Location Manager Measuring Tool

The Location Manager Distance Measure Tools allow you to measure the distance (in either feet or meters) between APs and perform other measure functions.


Note The Distance Measure Tool icons appear only when you have added floor information to your building(s). (See Adding Floor Information.)


Procedure


Step 1 In the Location Manager window, click on either Distance Measure Tool icon.The icon with ft indicates feet, and the icon with m indicates meters.

The icon you selected is shaded grey, and the bottom of the Location Manager displays the following message:

Distance Measure Tool: On

Step 2 Click and drag your mouse anywhere on the building map to start your measurement from.

Step 3 Drag your mouse to the desired location. You'll see the measurement display as you're dragging the mouse.

Step 4 To end the measurement, lift your finger from the mouse.


Note If the Distance Measure Tool is enabled, the Edit Location tool is disabled automatically.



Using Location Manager Contrast Sliding Tool

You can modify the background contrast in the image of your floor map by using the Location Manager Contrast sliding tool.

To make the background image lighter, move the sliding bar to the left.

To make the background image darker, move the sliding bar to the right.

Using Location Manager Channel Color Key

Each AP on your floor map has a color associated with it. The color indicates the channel the AP is transmitting on. To verify which color corresponds with which channel, click on the Channel Color Key icon or select Help > Channel Color Key. The Channel Color Key legend appears showing you which color represents which channel.

Using Location Manager Radio Location Color Key

The Location Manager Unknown Radio Location Color Key shows you the possible location of an unknown radio. The color gradations correspond to the percentage of probability that the unknown radio exists in the specified region. Click on the Unknown Radio Location Color Key, located next to the Channel Color Key, or select Help > Unknown Radio Location Color Key to view this information.

Zooming In and Out

When using Location Manager, you might need to zoom in and out to see APs displayed on the floor map. You can zoom in and out by selecting a radio button to the left of your floor image. There are 7 radio buttons that correspond to the following zoom levels:

32 pixels per foot

16 pixels per foot

8 pixels per foot

4 pixels per foot

3 pixels per foot

2 pixels per foot

1 pixel per foot

To return to the normal view, select the fourth radio button (4 pixels per foot) in the list.

Locating Devices in Location Manager

You can search for Devices in the Location Manager window.

Procedure


Step 1 From the Location Manager window, select Tools > Find Device. The Find Device window appears.

Step 2 From the pulldown menu, select whether to search by device name, IP Address, or MAC Address.

Step 3 Select either Containing or Exactly Matching.

Step 4 Enter the text string to search for in the text field.

Step 5 Click Search. The Find Device form displays the device or devices that match your search criteria.

Step 6 Click on the name of the device you want to locate, then click Locate Device at the bottom of the form.

The device you selected appears in the center of the floor map.


You can right-click on any AP and select Device Details. A new browser opens displaying the AP Summary Report for the AP you selected.

Related Topics

Changing Location Manager Display Options

Adding Devices to the Floor Map

Obtaining Server Information

From Location Manager, you can

Verify Server Status (See Verifying Server Status.)

View Server Messages (See Viewing Server Messages.)

Verifying Server Status

You can verify the status of your server by selecting Server > Status. The Server Status window appears displaying the IP address of the server and the time the server was started. The Server status form also displays the following information:

UserID—The username of the person who launched Location Manager

Client Address—The address of the client machine that launched Location Manager

Login Time—The time that the user launched Location Manager

Related Topics

Viewing Server Messages

Viewing Server Messages

You can view server messages after you configure your floor plan with APs by selecting Server > Message. The Message Server Message Log window appears displaying messages about your server. This information might be helpful when troubleshooting issues, for example, if the AP display coverage isn't correct.

Related Topics

Verifying Server Status

Changing Location Manager Display Options

Location Manager allows you to modify how devices are displayed. You can

Modify how device names are displayed (See Modifying Device Name Display.)

Modify what AP information is displayed on the floor map (See Modifying Floor Map Display Options.)

Modify AP coverage display options (See Modifying AP Coverage Display Options.)

Modifying Device Name Display

You can select how you want your devices displayed in the Location Manager window by selecting View > Device Label and clicking on one of these options:

Name— Device Names are displayed

IP Address—IP Addresses of devices are displayed

MAC Address—MAC addresses of devices are displayed

Modifying Floor Map Display Options

You can specify what AP information you want displayed on the floor map:

Channel frequency (See Displaying Channel Frequency.)

Transmit power (See Displaying Transmit Power.)

Data rate (See Displaying Data Rate.)

Coverage display (See Displaying Coverage.)

Displaying RSS (See Displaying RSSI from Selected AP.)

Displaying Channel Frequency

To display the channel frequency of the APs on the floor map, select Display > Channel Frequency.

The floor map refreshes to show the channel frequency of each AP. The color of the channel frequency number corresponds to the channel. For more information about the colors and what they mean, see Using Location Manager Channel Color Key.

Displaying Transmit Power

To display the transmit power of the APs on the floor map, select Display > Transmit Power.

The floor map refreshes to show the transmit power (in mW) of each AP.

Displaying Data Rate

To display the highest basic rate set of the APs on the floor map, select Display > Data Rate.

The floor map refreshes to show the data rate (in Mbps) of each AP.

Displaying Coverage

To display a graphic representation of the transmit coverage of the APs on the floor map, select Display > Coverage Display.

The floor map refreshes to show the coverage area of each AP. To learn more about modifying the coverage display, see Changing Location Manager Display Options.

Displaying RSSI from Selected AP

To display a numeric value of the received signal strength on the floor map, select Display > Show RSSI from Selected AP.

The floor map refreshes to show the received signal strength of each AP.

Modifying AP Coverage Display Options

You can modify how the coverage of each AP is displayed in the floor map.

Procedure


Step 1 Next to the Coverage Display pulldown, click Options. The Coverage Display Options form appears.

Step 2 Select a value in the Display Signal Strength Threshold pulldown. The default is 80% (-55dBm), which means that the coverage area displayed on floor map encompasses the area in which the AP signal stretch is at 80% (-55dBm) of its threshold.

You can select a different signal strength threshold, which will change the coverage area displayed on the floor map. If, for example, you select 20% (-85dBm) in the Display Signal Strength Threshold field, the coverage area around the AP will increase because it indicates the area in which the AP signal strength is at 20% (or -85dBm) or more of its threshold.

Step 3 Change the display coloring method by choosing one of these options:

Use Gradient Color (default)—Uses one color with varying degrees of darkness based on the receiving signal range

Use Solid Color—Uses one color with the boundary drawn within the range of the signal strength threshold you selected

Step 4 Change the Calculation Grid Size by clicking on a value in the pulldown menu. Changing the size to a larger value, for example 8ft., gives you a more general coverage that is not as granular as if you had picked a smaller value, for example 2 ft. The smaller the value you choose, the more time it will take for the floor map to refresh because it will display a more specific coverage area.

Step 5 Click Apply. The floor map refreshes to show the display options you selected.


Related Topics

Changing Location Manager Display Options

Adding Building Information

When you start Location Manager, the first thing you need to do is add information about your building(s) and its floor(s).

Procedure


Step 1 Select Radio Manager > Location Manager. A page appears telling you about the necessary Java plug-in version required to use Location Manager, and it displays the Java version you are currently running.

Step 2 When you are sure you are running the correct version of the Java plug-in, click Launch to start Location Manager. The Location Manager window opens.

Step 3 The first time you launch Location Manager, a dialog box appears saying that no building or floor information was found. It asks if you want to add a new building.

Step 4 Click Yes.

On subsequent launches, the buildings, corresponding floors, and relevant devices appear under All Locations.

Step 5 The Building Tool opens displaying the Create Building Information form. Enter information about the building.

The following table shows the character limits for each field on the Create Building Information form:

Field
Maximum Character Length

Building Name

64 characters

Contact

64 characters

Address

256 characters


Step 6 To import an image of the building, click Upload/Select. For more information about importing an image, see Importing an Image of the Building.


Note The image filename cannot have any spaces in it. If your image filename has a space in it, rename the file before uploading it.


Step 7 Click Add Floor to add information about the floor of the building. For more information about adding information about the floor, see Adding Floor Information.

Step 8 Click Save. You'll see the name of building appear under All Locations in the left pane of the Location Manager window.


Related Topics

Importing an Image of the Building

Adding Floor Information

Importing an Image of the Building

To use Location Manager, you need an image (.gif, .jpg, .jpeg, or .png) of the layout of your building. You can import this image into the Location Manager by following these steps.


Note The image filename cannot have any spaces in it. If your image filename has a space in it, rename the file before uploading it.



Note If you import an image at the building level (not a floor), that image is the default for all floors in the building.


Procedure


Step 1 In the Location Manager window, right click on a building or floor name and select Edit Building (or Edit Floor if you right-clicked on a floor). The Building Tool opens with the Create Floor Information form.

Step 2 Click Upload/Select. The Select Image File screen appears.

Step 3 Click Upload to browse to the location of your image file.

Step 4 Click on your image file, then click Select. You'll see your file added to the Select Image file window.

Step 5 Click Select on the Select Image file window. The image is uploaded. You'll see the name of your image file in the Default Floor Map Image field on the Building Tool window, and your image file should appear in the Map Image Preview field.

Step 6 On the Map Image preview, drag the red rectangle to cover just the edges of your building, or if desired, drag the rectangle over just a portion of your building. This is particularly important if your image has white space around the building because it helps Location Manager more accurately determine the location of any interferers.


Related Topics

Adding Devices to the Floor Map

Adding Floor Information

Adding Floor Information

After importing an image file of your building, you need to specify the dimensions of the floor(s) so that Location Manager knows the scale of the image you imported and can more accurately report the location of any interferers. When you first import an image file into Location Manager, the floor dimensions are the pixel size of the imported image.

If you don't know the dimensions of your floor, see When You Don't Know Floor Dimensions for more information.

Procedure


Step 1 In the Location Manager window, right click on the building name and select Add Floor. The Building Tool opens with the Create Floor Information form.

Step 2 Enter the name of the floor and import an image map. For more information, see Importing an Image of the Building.


Note The image filename cannot have any spaces in it. If your image filename has a space in it, rename the file before uploading it.



Note If you previously imported an image to your building, that image is the default for all floors in the building. To upload a new image for the floor, import a new image.


Step 3 Select whether the measurement is in feet or meters using the pull-down menu, and then enter the dimensions of your floor in the Floor Dimensions field.

Step 4 On the Map Image preview, drag the red rectangle to cover just the edges of your floor, or if desired, drag the rectangle over just a portion of your floor, for example, a conference room. This is particularly important if your image has white space around the building or conference room because it helps Location Manager more accurately determine the location of any interferers.


Related Topics

When You Don't Know Floor Dimensions

When You Don't Know Floor Dimensions

If you don't know the dimensions of the floor, you can add dimension information to Location Manager using:

The dimensions of a smaller area, for example, a conference room.

The distance between two points, for example, two devices.

Procedure


Step 1 If you know the dimensions of a portion of the floor (or the distance between two devices), in the Building Tool, enter that measurement (or the distance between the two devices) in the Floor Dimension field. To improve accuracy, specify a measurement for the largest area possible.

Step 2 On the imported image map, drag the red rectangles to cover just the area that you specified the dimensions for. Or if using the distance between two devices, put two corners of the rectangle at each AP location.


Adding Devices to the Floor Map

After you add a new building and new floor and import an image map, you can place the devices on the floor map for each floor.

You need to initiate a discovery before you can add them to a building or floor. See Managing Device Discovery for more information.

Procedure


Step 1 From the list of devices in the bottom left window of Location Manager, click on a device name and drag it to its approximate location on the image of the floor map.

You do not need to place the devices in the exact location on the image map, but the closer the device on the map matches its location on the floor, the more accurately Location Manager will be when giving you information about unknown radios and interferers.

Step 2 Continue to drag and drop devices on to the floor map.


The floor map indicates the alarm status of each device:

Red indicates the device has faults with major alarms.

Yellow indicates the device has faults with minor alarms.

Green indicates the device has no faults.

Grey indicates the device is unmanaged.

You can right-click on any AP and select Device Details. A new browser opens displaying the AP Summary Report for the AP you selected.

Related Topics

Moving Devices on Image Map

Using Location Manager Channel Color Key

Moving Devices on Image Map

If you already placed a device on your image map and need to change its location, you can move it to a new location by following these steps:

Procedure


Step 1 Click on the Enable Edit Location Mode icon.

Step 2 Click on the device you want to move.

Step 3 You can either drag the device to a new location on the map, or you can select Edit > Cut.

Step 4 If you select Edit > Cut, click on the new location for the device, the select Edit > Paste.

The device appears in the new location on the image map.


Related Topics

Adding Devices to the Floor Map

Finding Unknown Radios

Location Manager helps you find unknown radios in your network by using the received signal strength from all detecting APs to locate the unknown radio relative to the detecting APs.

Location Manager can also estimate the distance between the detecting AP and the unknown radio.

Procedure


Step 1 In the Location Manager window, click on the Unknown Radio List icon or select Tools > Unknown Radio List. The Unknown Radio List window opens displaying a list of all unknown radios found.

Step 2 At the top of the Unknown Radio List window, select which devices you want to view:

Rogue— An APs that has not been identified as Friendly. By default, all unknown radios are classified as Rogue until you change them to Friendly.

Friendly—An AP that you know exists, for example, a neighboring network's AP, but that you are not going to modify in any way.

The window refreshes to display the devices of the unknown radio type you selected.

Step 3 Click on a device name. The Unknown Radio List window refreshes with data specific to that device.

The Reported By field shows the device or devices that detected the unknown radio:

If the APs checkbox is selected, the Reported By field displays the APs that detected the selected unknown radio.

If the Clients checkbox is selected, clients detected the selected unknown radio.

If the device you selected does not have a building name listed in the Building field, the Location Estimation field indicates the estimated location as unknown.

Step 4 Click Change to Friendly (if you selected Rogue from the Unknown Radio Type pulldown) to change the status of the selected unknown radio from Rogue to Friendly.

If you selected Friendly from the Unknown Radio Type pulldown, you can click Change to Rogue to change the status of the selected unknown radio from Friendly to Rogue.

Step 5 Click Display Location to view the approximate location of the unknown radio on the building map. You'll see the possible location of the unknown radio shaded in color. The darkest shade indicates the most probable location.

Because Location Manager does not know the transmit power of the unknown radio, you might need to change the display options as explained in Changing Location Manager Display Options.


Note If the Unknown Radio List dialog box is covering the Location Manager window, you might need to close the dialog box to see the unknown radio displayed on the building map in Location Manager.


Step 6 To delete a rogue AP when you have determined that it no longer exists, you can remove it by clicking Delete.


Related Topics

Displaying Unknown Radios in the Floor Map

Displaying Unknown Radios in the Floor Map

You can view the location of unknown radios in the Location Manager window by following these steps:

Procedure


Step 1 In the Location Manager window, select the unknown radio type that you want to view in the Unknown Radios pulldown menu. The pulldown menu might contain MAC addresses or IP addresses of devices in your network.


Note You might need to zoom out if you cannot see the possible location of the unknown radio in the Location Manager window. See Zooming In and Out.


Step 2 Click Options to modify the display options for the unknown radio. The default transmit power selected is 50mW and 100mW.

Step 3 Click on different transmit power options to increase the area on the floor map in which the unknown radio might be located. If you select all transmit powers, the floor map will display all possible areas that the unknown radio might be located.

Step 4 Select whether to use the Exclusion Algorithm. By default, the Exclusion Algorithm is selected so that, in its calculations, Location Manager includes the APs in the general area that did not detect the unknown radio. If you deselect the Exclusion Algorithm option, only the APs that detected the unknown radio are used in the location calculation.


Related Topics

Finding Unknown Radios

Using the Assisted Site Survey Wizard

The Assisted Site Survey walks you through the process of determining the optimal radio transmit power and channel selection. It helps you select APs, run an AP radio scan job, perform a client walkabout, and generate radio parameters for the selected APs.

The Assisted Site Survey takes you through the following steps:

1. AP Selection—See 1. Selecting the APs.

2. AP Radio Scan—See 2. Viewing Radio Scan Data.

3. Client Walkabout—See 3. Performing a Client Walkabout.

4. Radio Parameter Generation—See 4. Generating Radio Parameters.

1. Selecting the APs

Procedure


Step 1 Select Radio Manager > Location Manager > Wizard > Assisted Site Survey. The Assisted Site Survey Wizard appears.

Step 2 Select the APs you want to participate in the site survey:

To select all APs in a building, click on the building name, then click Add.

To select all APs on a floor, click on the floor name, then click Add.

To select individual APs, click on the AP name, then click Add.

Step 3 To remove an AP that you previously selected, click on the AP name, then click Remove.

Step 4 Click Next to go to the next step (2. Viewing Radio Scan Data).


2. Viewing Radio Scan Data

After you selected the APs to participate in the assisted site survey, the wizard checks to see if there is any existing radio scan data for the APs you selected. If there is no previous scan data, the wizard asks you to run a new radio scan setup. In addition, the following information is displayed in the table:

Field
Description

Name

Name of the AP

IP Address

IP address of the AP

Last Scan Time

Time the most recent radio scan job started. If this field indicates None, you need to run a new radio scan.


Procedure


Step 1 Select one of the following options:

Start new radio scan setup—The wizard starts a new radio scan job. Select this option if there is no previous radio scan date for the selected APs.

Use old radio scan data—The wizard uses the data collected from the most recent radio scan job. Use this option if the number of neighbors is accurate.


Note A running scan job temporarily degrades wireless LAN service, which might affect client associations. To minimize any disruption, schedule scan jobs to run during off-hours.


Step 2 If you select to start a new radio scan setup, you need to specify the AP's maximum transmit power setting for the radio scan procedure. By default, the power level is set to the maximum value allowed on the AP. See Understanding AP Radio Scans.

Step 3 To start the new radio scan, click Start. You'll see informational messages appear in the text box and when the scan is complete, the form will display the following information:

Field
Description

Name

Name of the AP

IP Address

IP address of the AP

Last Scan Time

Time the most recent radio scan job started


Step 4 Click Next to go to the next step (3. Performing a Client Walkabout).


Related Topics

Understanding AP Radio Scans

3. Performing a Client Walkabout

Performing a Client Walkabout is an optional procedure in the Assisted Site Survey Wizard. If the APs you selected have data from a previous Client Walkabout session, this information is displayed in the wizard. For more information, see Understanding Client Walkabouts.

Procedure


Step 1 Select one of the following options:

Start Client Walkabout Setup—The wizard walks you through the steps of setting up a Client Walkabout. See Client Walkabout Guidelines.

Skip Client Walkabout—If the location data is accurate, you can skip the client walkabout and go directly to 4. Generating Radio Parameters.

Step 2 If you select to start Client Walkabout Setup, you need to enter at least one client MAC address, and up to five addresses, that will move around during the walkabout.

Step 3 Select the AP power setting. By default, the power level is set to the maximum value allowed on the AP or the maximum allowed by the regulatory domain. You might choose to enter a lower power setting when, for example, the default power level might affect a neighboring network.

Step 4 Click Start to start the Client Walkabout. When the Client Walkabout is complete, click Stop and the following information is displayed:

Field
Description

Name

Name of the AP

IP Address

IP address of the AP


Step 5 Click Next to go to the next step (4. Generating Radio Parameters).


Related Topics

Client Walkabout Guidelines

4. Generating Radio Parameters

You need to set channel constraints and transmit power constraints for the APs you selected. The wizard can help you configure your APs by internally utilizing measurement data collected from a Client Walkabout and AP radio scanning. The wizard recommends optimal radio transmit power, channel selection, and beacon interval (optional), and then applies these configuration settings to the APs, if desired.


Tip To get optimal channel settings, run the radio parameter generation on a per building basis. That is, include all APs in one building in a single radio parameter generation job.


Procedure


Step 1 Click on one of the Constraints options:

All APs—Applies the constraints to all APs you selected to participate in the site survey

Individual AP—Allows you to specify constraints for individual APs.

Step 2 Enter a value in the Minimum and Maximum Transmit Power fields. By default, the transmit power is set to the maximum value allowed on the AP or the maximum allowed by the regulatory domain. You might choose to enter a lower power setting when, for example, the default power level might affect a neighboring network.

Step 3 Under Goal, enter a numerical value for the expected maximum number of clients per AP, and a numerical value for the expected average number of clients per AP.

Step 4 Select whether to enable black hole mitigation. If you select this option, Radio Manager recommends a beacon interval, which is slightly altered from what the AP is configured to, for the APs. If you do not select the Black Hole Mitigation option, Radio Manager will not recommend a beacon interval.

Step 5 Click Start to start the configuration parameter calculation. When the radio parameter generation is complete, a message appears at the bottom of the screen.

Step 6 Click Next to view the calculation results and apply the configuration to the APs.

Step 7 After reviewing the calculation results, click Apply Configuration to apply the configuration changes to the APs.


Note The configuration on your devices will not change unless you click Apply Configuration.




Note To view the changes from the Assisted Site Survey displayed graphically in Location Manager, in the Location Manager window, select View > Refresh Data.


Related Topics

AP Radio Scan

Client Walkabout

Radio Management Assisted Configuration

Radio Management Assisted Configuration

RM Assisted Configuration can help you configure your APs by internally utilizing measurement data collected from a Client Walkabout and AP radio scanning. RM Assisted Configuration recommends optimal radio transmit power, channel selection, and beacon interval (optional), and then applies these configuration settings to the APs, if desired.


Tip To get optimal channel settings, run RM Assisted Configuration on a per building basis. That is, include all APs in one building in a single RM Assisted Configuration job.



Note Your login determines whether you can use this option.


Related Topics

Creating a New Assisted Configuration Task

Viewing Assisted Configuration Tasks

Editing Assisted Configuration Tasks

Viewing Assisted Configuration Tasks

You can view RM assisted configuration tasks.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM Assisted Configuration screen appears.

Step 2 From the pulldown menu, select what type of configuration tasks you want to view:

All—Lists all configuration tasks

Planning—Lists configuration tasks who's constraints are still being calculated by the RM Assisted Configuration engine.


Note A configuration job stays in the Planning state if something disrupts the network, for example, a server crashes or is restarted.


Unscheduled—Lists all configuration tasks that have not been scheduled

Scheduled—Lists all configuration tasks that have been scheduled

Completed—Lists all completed configuration tasks

The screen refreshes to show you details about the specified configuration tasks. You can sort the configuration tasks by name, status, next schedule, or owner by clicking on the corresponding column heading.


Related Topics

Editing Assisted Configuration Tasks

Copying Assisted Configuration Tasks

Creating a New Assisted Configuration Task

Editing Assisted Configuration Tasks

You can edit assisted configuration tasks that were previously created.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM Assisted Configuration screen appears.

Step 2 From the RM Assisted Configuration pulldown menu, select the configuration tasks you want to edit. The screen refreshes to show the corresponding tasks.

Step 3 Click on the radio button next to the task you want to modify, then click Edit. See Radio Management Assisted Configuration for more information about completing the task.


Related Topics

Copying Assisted Configuration Tasks

Deleting Assisted Configuration Tasks

Creating a New Assisted Configuration Task

Copying Assisted Configuration Tasks

To create a new assisted configuration task that is similar to a previously created configuration task, you can make a copy of an existing configuration task and then make modifications to the copied task.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM Assisted Configuration screen appears.

Step 2 From the RM Assisted Configuration pulldown menu, select the configuration tasks you want to copy. The screen refreshes to show the corresponding tasks.

Step 3 Click on the radio button next to the task you want to modify, then click Copy.

Step 4 Enter a new name for the copied configuration, then click OK. The copied configuration appears in the task list.


Related Topics

Editing Assisted Configuration Tasks

Creating a New Assisted Configuration Task

Refreshing the List of Configuration Tasks

Deleting Assisted Configuration Tasks

You can delete assisted configuration tasks that were previously created.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM Assisted Configuration screen appears.

Step 2 From the RM Assisted Configuration pulldown menu, select the configuration tasks you want to delete. The screen refreshes to show the corresponding tasks.

Step 3 Click on the radio button next to the task you want to remove, then click Delete.

A dialog box appears asking if you want to delete the selected task.

Step 4 Click OK. The configuration is deleted from the task list.


Related Topics

Refreshing the List of Configuration Tasks

Creating a New Assisted Configuration Task

Viewing Details of a Configuration Task

You can view details of selected configuration tasks.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM Assisted Configuration screen appears.

Step 2 From the RM Assisted Configuration pulldown menu, select the configuration tasks you want to view. The screen refreshes to show the corresponding tasks.

Step 3 Click on the radio button next to the task you want to view details of, then click Details.

The Radio Management Assisted Configuration Details window appears listing information about the configuration task.


Related Topics

Editing Assisted Configuration Tasks

Copying Assisted Configuration Tasks

Refreshing the List of Configuration Tasks

Creating a New Assisted Configuration Task

Refreshing the List of Configuration Tasks

If you made recent changes to configuration tasks, you can refresh the list of configuration tasks to make sure you're looking at the latest information. You might also need to refresh the configuration tasks if you have a configuration in the Planning state.


Note Your login determines whether you can use this option.


Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM Assisted Configuration screen appears.

Step 2 From the RM Assisted Configuration pulldown menu, select All. The screen updates to show all the RM assisted configuration tasks.

Step 3 Click on Refresh. The screen refreshes and shows an updated list of all configuration tasks.


Related Topics

Editing Assisted Configuration Tasks

Creating a New Assisted Configuration Task

Creating a New Assisted Configuration Task

When you have a APs or a group of APs that you want to configure, you can use RM Assisted Configuration to configure the APs. Using AP Scan and Client Walkabout data, RM Assisted Configuration generates optimal values for the radio parameters of a given group of APs.


Tip To get optimal channel settings, run RM Assisted Configuration on a per building basis. That is, include all APs in one building in a single RM Assisted Configuration job.



Note The Assisted Site Survey wizard can walk you through the process of determining the optimal radio transmit power and channel selection. It helps you select APs, run an AP radio scan job, perform a client walkabout, and generate radio parameters for the selected APs. See Using the Assisted Site Survey Wizard.



Note Your login determines whether you can use this option.


Prerequisites

Before you can create a new RM assisted configuration task, you must have already:

Discovered the devices (see Managing Device Discovery)

Made the devices managed (see Managing and Unmanaging Devices)

Perform an AP Radio Scan (see AP Radio Scan)

Perform a Client Walkabout (optional but recommended) or add device information in Location Manager. See Client Walkabout and Location Manager.

Procedure


Step 1 Select Radio Manager > RM Assisted Configuration. The RM assisted configuration information appears.

Step 2 Enter a task name in the blank field and click New. The screen refreshes with the Job Name dialog box in the right pane, and the Task Creation job in the left pane.

Step 3 Select the following numbered choices in the left pane to create a new RM assisted configuration task:

1. Job Name1. Naming the Configuration Task.

2. Select Devices— See 2. Selecting Devices.

3. Constraints and Goals—See 3. Assigning Constraints and Goals.

4. Calculated Parameters—See 4. Calculating Parameters.

5. Calculated Results— See 5. Viewing the Calculated Results.

6. Schedule—See 6. Scheduling the Assisted Configuration.

7. Done— See 7. Finishing the Task.


Caution Clicking on any subtab (for example, Radio Monitoring or Client Walkabout) before you have saved your entries in the Jobs window will cause the window to reset and you will lose all the information you entered.

1. Naming the Configuration Task

Procedure


Step 1 Click Name.

The screen refreshes so you can enter information about the new task. You'll see the name you entered in the Task Name field.

Step 2 Enter the following information:

Field
Description

Job Name

Enter a unique name for the job. For guidelines on naming jobs, see "Naming Guidelines."

Description

Enter a description of the job. For guidelines on entering descriptions, see "Naming Guidelines."


.

Step 3 From the menu in the left pane, go to the next step, Selecting Devices. (See 2. Selecting Devices)


2. Selecting Devices

Procedure


Step 1 Click Select Devices. All managed devices are listed in the Device selector in the middle pane.

Step 2 Select the devices you want to include in the job. See Using the Device Selector and Search).

Step 3 From the menu in the left pane, go to the next step, Constraints and Goals. See 3. Assigning Constraints and Goals.)


Related Topics

Creating a New Assisted Configuration Task

3. Assigning Constraints and Goals

After selecting the devices for the assisted configuration task, you need to specify the constraints and goals of the task.

Procedure


Step 1 Determine whether you want to apply the constraints to all APs that you selected in Step 2 or if you want to apply the constraints to individual APs that you selected in Step 2.

Step 2 If you selected to apply the constraints to individual APs, a list box appears in which you can select the AP on which to apply the constraints. Click on the AP name in the list box.

Step 3 For the Channel Set, select either option:

Recommended—Use the channels Radio Manager recommends in the Recommended field.

Custom—Select the channels from the Custom selection box. You can Ctrl-click to select more than one channel from the selection box.

Step 4 Enter a number for the minimum transmit power and a number for the maximum transmit power. By default, the power level is set to the maximum value allowed on the AP or the maximum allowed by the regulatory domain. You might choose to enter a lower power setting when, for example, the default power level might affect a neighboring network.

Step 5 Enter a numerical value for the expected maximum number of clients per AP and a numerical value for the expected average number of clients per AP.

Step 6 Select whether to enable black hole mitigation. If you select this option, Radio Manager recommends a beacon interval, which is slightly altered from what the AP is configured to, for the APs. If you do not select the Black Hole Mitigation option, Radio Manager displays the beacon interval the AP is currently configured to.


Related Topics

Creating a New Assisted Configuration Task

Editing Assisted Configuration Tasks

Deleting Assisted Configuration Tasks

4. Calculating Parameters

After you assign the constraints and goals, the next step is for Radio Manager to calculate the parameters. In this step, you will see a progress bar that indicates the progress Radio Manager is making in its calculations.


Note Depending on the number of APs selected for the job and how much data was collected during Client Walkabout, the calculating parameters step could take a while to complete.


To stop the parameter calculation, click on the Stop button.

When the parameter calculation is complete, the results are displayed. For more information about the parameter results, see 5. Viewing the Calculated Results.

Related Topics

Creating a New Assisted Configuration Task

Editing Assisted Configuration Tasks

Deleting Assisted Configuration Tasks

5. Viewing the Calculated Results

After Radio Manager calculates the parameters for the assisted configuration job, it displays the calculation results. The calculation results specify the following information:

Field
Description

Name

Name of the AP

Transmit Power

Recommended transmit power for this AP

Channel

Recommended channel for the AP

Beacon Interval

Recommended beacon interval for the AP. If you did not select the Enable Black Hole Mitigation option, this column displays the value the AP is currently configured to. (See 3. Assigning Constraints and Goals for more information.)

Estimated Maximum Throughput

The estimated maximum megabytes per second that the AP can process


6. Scheduling the Assisted Configuration

After you have viewed the calculation results of the assisted configuration task (see 4. Calculating Parameters for more information) and want to apply these changes, you need to determine when to apply configuration changes.

Procedure


Step 1 Click on 6. Schedule. The Schedule RM Assisted Configuration Job form appears.

Step 2 To start the assisted configuration task immediately, click Run Now.

Step 3 To run the assisted configuration task at a later time, under Run Later, select a Month, Day, Year to run the configuration task. You must also specify the start time by selecting the hour and minute to start the job.


7. Finishing the Task

Before selecting this option, you must name the assisted configuration task, select the devices, enter constraints and goals, and schedule the assisted configuration task.

Procedure


Step 1 Click Finish in the left pane.

The Done form appears indicating that the job has completed or it has been scheduled (if you scheduled it to run later).


Managing RM Measurements

Use the Manage RM Measurements tab to delete previously-collected radio location measurements, including links and path loss data. You might need to delete radio location data, for example:

When APs have been added, deleted, or physically moved.


Note If you run a new AP radio scan, the radio location information for the selected APs is deleted automatically.


If the number of walkabout locations is slowing down the RM Assisted Configuration. You can use the Location Manager's RM Assisted Wizard (see Using the Assisted Site Survey Wizard), to view the walkabout results, including each AP and the number of walkabout locations that can hear that AP.

Procedure


Step 1 Select Radio Manager > Manage RM Measurements.

Step 2 Choose the radio location measurements to be deleted:

Delete Radio Measurements—Deletes the AP radio locations collected during AP radio scans and radio monitoring.

Delete Walkabout Measurements—Deletes the client radio locations collected during client walkabouts.

Step 3 Click Select Devices. All managed devices are listed in the Device selector in the middle pane.


Note In a multi-storied building, in addition to selecting the APs for that floor, select the APs for the floors above and below as well.


Step 4 Select the devices you want to include in the job (see Using the Device Selector and Search).

Step 5 Click Finish in the left pane. The selected data is deleted immediately.


Related Topics

AP Radio Scan

Client Walkabout

Using the Assisted Site Survey Wizard