Using Clarity

The Clarity Dashboard enables you to monitor wireless clients as they connect to the wireless network and determine the cause of network connectivity and performance issues.

AirWave receives Clarity Live data through AMON messages sent from controllers on the network. The controllers must be running HPE Aruba Networking Wireless Operating System 6.4.3 or later.

View Clarity Charts

From the dashboard, you can drill down and view real-time data for devices in a specific sub-folder, or view data for a different time interval.

Failures Rates

Figure 1 shows statistics for a 2-hour period, including the percentage of failures for each process, number of failures, and total number of attempts.

Figure 1  Failure Rates

Process Times

To display the average process times over the selected time interval, click the Failure drop-down menu in the upper left corner of the dashboard and click Time.

Figure 2  Average Process Times



Clarity Thresholds

Each icon in the Summary table represents quality thresholds for the number failures and the average amount of time it takes the process to complete.

For example, if a process has a high failure rate but a good process time, the icon will be red, indicating the most severe threshold crossed in either category. Hover your mouse over an icon to display the number of authentication process failures and successes for clients associating to individual APs or folders of APs, as well as the average time it took for each process to complete.

Refer to for descriptions of what each icon color represents and the thresholds for process times and failure rates.

Icon Color Codes and Thresholds

Icon Color

Description

Process Time Thresholds

Failure Rate Threshold

Good failure rate and process time

Good Association time: <10 ms

Good Authentication time: <500ms

Good DHCP time: <100 ms

Good DNS time: <100 ms

< 10% failures

Fair failure rate or process time

Fair Association time: 10 -20 ms

Fair Authentication time: 500-1000ms

Fair DHCP time: 100 - 200ms

Fair DNS time: 100 -200ms

>10% to 20% failures

Poor failure rate or process time.

Poor Association time: >20 ms

Poor Authentication time: >1000 ms

Poor DHCP time: >200 ms

Poor DNS time: >200ms

>20% failures

View User Details from the Summary Table

Clarity Live allows you to use the Summary table to navigate directly to user details. For example, you can narrow your results to list users that have used a specific server to authenticate, and you can click the Client MAC address link to open the User Detail page for the client.

To view user details for a client:

  1. In the Summary table on the Home >Clarity page, locate a client and click in the Authentication column (see Figure 3). Or, you can open the User Details page by clicking Association or DHCP.

    Figure 3  Opening the User Details Page for a Client

    The User Details page opens (see Figure 4).

    Figure 4  Clarity User Details

  2. Narrow the scope of your analysis, by selecting a link from the User Details page. For example, to see authentication failures for all users who have used a specific Dot1x server, click Auth. Failures (%) for the server (see Figure 5).

    Figure 5  Filtering Your Results

    The User Details page displays filtered results (see Figure 6).

    Figure 6  Filtered User Details for Authentication Failures for Users on a Dot1x Server

View Authentication Failure Data

The Authentication table provides information for the client authentication processes on the network.

Authentication Table fields

Column

Description

Servers

IP address of an authentication server.

Type

Indicates the authentication server type:

Dot1x: 802.1x

Captive Portal: Captive portal authentication

MAC Auth:MAC authentication

WPA-PSK: WPA encryption with pre-shared key (PSK) authentication

Failures (%)

This column shows the percentage of authentication failures for that server, followed by the total number of failures and the total number of authentication attempts over the selected time interval.

Avg. Time (ms)

The average time it took to successfully complete the authentication process over the selected time interval. Times for both failed and successful attempts are calculated in this average.

Click in the table heading to display of graph of average authentication times for each server during the selected time interval. Hover your mouse over any section of the graph to view details about the authentication times during that portion of the time interval, or click to return to the table view.

View DHCP Failure Data

The DHCP table on the Home>Clarity page provides information about authentication on the network.

DHCP Table fields

Column

Description

Servers

IP address of a DHCP server.

Avg. Time (ms)

The average time it took to successfully complete the DHCP provisioning process over the selected time interval. Times for both failed and successful attempts are calculated in this average.

Click the in the table heading to display of graph of DHCP times for each server during the selected time interval. Hover your mouse over any section of the graph to view details about the DHCP provisioning times during that portion of the time interval, or click to return to the table view.

View DNS Failure Data

The DNS table displays the information for DNS resolution attempts.

DNS Table fields

Column

Description

Servers

IP address of a DNS server.

Failures (%)

This column shows the percentage of DNS resolution failures for that server, followed by the total number of failures and the total number of DNS resolution attempts over the selected time interval.

Avg. Time (ms)

The average time it took to successfully complete the DNS resolution process over the selected time interval. Times for both failed and successful attempts are calculated in this average.

Click in the table heading to display of graph of DNS resolution times for each server during the selected time interval. Hover your mouse over any section of the graph to view details about the resolution times during that portion of the time interval, or click to return to the table view.

View Association Data

The Association table on the Home>Clarity page displays the following information for association times and failures on the network.

Association Table fields

Column

Description

APs

Name of an AP.

Failures (%)

This column shows the percentage of failed association attempts failures for that AP, followed by the total number of failures and the total number of association attempts over the selected time interval.

Avg. Time (ms)

The average time it took to for a client to associated to the AP over the selected time interval. Times for both failed and successful attempts are calculated in this average.

Click in the table heading to display of graph of association times for each AP during the selected time interval. Hover your mouse over any section of the graph to view details about the association times during that portion of the time interval, or click to return to the table view.

Working with Clarity Data

First 25 Results

Clarity Live displays only 25 subfolders and APs with the lowest performance levels. If you have more than 25 subfolders or APs in the folder view, you can increase the number of results returned per page.

To see more than 25 results:

  1. Click the Details link at the bottom right corner of a Clarity table. A Details pop up window appears.
  2. Click the per page drop down list in the lower left corner of the window and select the number of results.

Click to view information about APs, or click to return to the default folder view. To see the top 25 users by Clarity issue, click at the top right of the Summary table.

Sorting and Filtering Clarity Data

Select any column heading in a Clarity table to sort the table by that value. Each Clarity table displays entries for 25 devices with the lowest performance levels. You can also select one or more column headings in the Details page to sort or filter the table by the selected values.

Selecting a Folder from the Navigation Bar

The navigation bar presents your folders in an organized hierarchy. When you click in the AirWave WebUI (see Figure 7) and select a folder from the navigation bar, Clarity will present data for the devices in this folder in the Clarity Live dashboard to the right.

Figure 7  Folder Navigation Bar

Exporting Clarity Data

Click by a Clarity table title to display the following list of data export options and table display settings.

  • Export all data as csv: Export the entries currently displayed in the table to a .csv formatted file.
  • Export visible data as csv: Export all entries recorded for the selected time frame to a .csv formatted file.
  • Export all data as pdf: Export the entries currently displayed in the table to a PDF file.
  • Export visible data as pdf: Export all entries recorded for the selected time frame to a PDF file
  • Details: Display the details window for the table.
  • Columns: Click a column heading to hide or display a column in the table.

Changing the Time Range

The Clarity Live dashboard displays data for the previous two hours. Clarity immediately refreshes and displays updates in the Clarity Live dashboard after any changes to the time range.

To display data for the previous day, week, or two weeks, select an option from the time range toolbar.

Figure 8  Select a Clarity Time Range

To select a custom time range, click the arrow on time range toolbar, then select a custom start and end time.

Figure 9  Selecting a Custom Time Range

Evaluate User Status

The Clients Detail page provides Clarity information, such as association, authentication and DHCP events for a particular client, in a table view, as shown in Figure 10.

Figure 10  Client Diagnostics for Clarity Live Monitoring

Figure 11  Clarity Timeline

You can click to display the Clarity live monitoring data in a timeline view, as shown in Figure 11.

You can access this page by doing one of the following:

  • Search for a user. In the resulting window, click the MAC address link.
  • Click the MAC address link in the Devices > Monitor page, the Clients > Connected page, or the Clients > All page.