Wireless Successful Connects SLE
SUMMARY Use the Wireless Successful Connects SLE to assess your users' experiences connecting to your wireless network.
Successful Connects is one of the wireless Service-Level Expectations (SLEs) that you can track on the Monitor page of the Juniper Mist™ portal. Understand what's measured by this SLE and what issues can contribute to a low SLE.
What Does the Wireless Successful Connects SLE Measure?
Juniper Mist tracks the success or failure of authorization, association, DHCP, ARP, and DNS attempts. These connection attempts include initially connecting to the network, roaming from one AP to another, and on-going connectivity.
You don't need to set up a threshold for this SLE. It's assumed that you want 100 percent successful connects.
Classifiers for Unsuccessful Connections
When connection attempts fail, Juniper Mist classifies the issues as follows.
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Association—The connection failed during the association process.
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Authorization—The connection failed during the authorization process.
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DHCP—The connection failed during the DHCP process.
The DHCP classifier has four sub-classifiers:
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Renew Unresponsive
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Nack
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Incomplete
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Discover Unresponsive
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ARP—The client experienced one of these problems:
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ARP failure for the default gateway during the initial connection
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ARP gateway failures after the initial connection or roam
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DNS—The client experienced DNS failures during or after the connection process.
Example
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Success Rate—On the left, you see that only 83 percent of connection attempts succeeded.
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Timeline—In the middle, you can drag your mouse to explore the success rate over time. In this example, there was a 25 percent success rate at the selected time. To adjust the scope of the timeline, use the timeline drop-down list at the top of the Monitor page. For example, set the timeline to Today, Yesterday, This Week, or a custom date range.
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Classifiers—On the right, you see a high-level root cause analysis for the failed attempts. The vast majority of the issues (92 percent) happened during the DHCP process. Another 7 percent failed during authorization, and 1 percent failed during association. No issues (0 percent) were attributed to the other classifiers.
You can click the Values button to show numbers instead of the success rate and the classifier percentages. In this example, the left side of the screen shows the number of successful connects during the specified time period. The timeline shows the number of attempts at each point in time. The right side of the screen shows the number of failed connection attempts for each classifier.
