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Time to Connect SLE

SUMMARY Use the Time to Connect SLE to assess your users' experience connecting to the Internet through your wireless network.

Time to Connect 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 Time to Connect SLE Measure?

Time to Connect is the number of seconds that elapse between the point when a client sends an association packet and the moment when the client can successfully move data.

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

Classifiers for Excess Time to Connect

When the Time to Connect threshold is not met, Juniper Mist classifies the issues as follows.

  • Internet Services —The time to access external networks was more than 2 sigma from the moving average for this site.

  • Authorization—The time to go past the authentication state was more than 2 sigma from the average authentication latency for this site.

  • Association—The time to go past the association state was more than 2 sigma from the average association latency for this site.

  • DHCP—The time to connect to Dynamic Host Configuration Protocol (DHCP) was more than 2 sigma from the average time for fully completed successful connections for this site.

    Sub-Classifiers for DHCP:

    • Stuck

    • Nack

    • Unresponsive

Example

Time to Connect SLE Example

  • Success Rate—On the left, you see that the Time to Connect threshold was met by only 51 percent of the user connections.

  • Timeline—In the middle, you can drag your mouse to explore this SLE over time. In this example, there was a 14 percent succeses 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 connections that failed to meet this SLE. Of these connections, 86 percent had trouble with Association and 14 percent had trouble with DHCP. 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. In this example, the left side of the screen shows the average number of seconds to connect. The timeline shows the number of seconds for the selected time. The right side of the screen shows the number of connection attempts that were impacted by each classifier.

Time to Connect SLE Example with Values