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Location Latency SLE

SUMMARY Use the Location Latency SLE to identify any user experiences that were affected by latency.

The Latency SLE is one of the Location 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 Location Latency SLE Measure?

Juniper Mist measures the latency of location responses and estimates to app clients.

You can click the Settings button to set the number of milliseconds to use as the success threshold for this SLE.

Classifiers for Latency Issues

When the latency threshold is not met, Juniper Mist analyzes the data from the client devices and classifies the issues as follows.

  • Cellular—The app client is using a cellular data connection, which may attribute to the high latency.

  • WiFi—The app client is using a wireless connection, which may attribute to the high latency.

  • No Reported Connection Type—There is no information available about the connection type.

Example

Location Latency Example

  • Success Rate—On the left, you see that the threshold was met 99 percent of the time.

  • Timeline—In the middle, you can drag your mouse to explore this SLE over time. This example shows a 98 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.

  • Classifiers—On the right, you see a high-level root cause analysis for the user experiences that failed to meet this SLE. All these issues (100 percent) were attributed to Wi-Fi. No issues (0 percent) were attributed to the other classifiers.

Note:

You can click the Values button to show numbers instead of the success rate and classifier percentages. On the left, you see the average latency in milliseconds for the selected time period. In the timeline, you see the latency in milliseconds at the selected time. On the right, you see the number of latency issues for each classifier.

Location Latency Example with Values