Switch Health SLE

What Does the Switch Health SLE Measure?

Juniper Mist™ monitors your switches' operating temperatures, power consumption, CPU, and memory usage. Monitoring switch health is crucial because issues such as high CPU usage can directly impact connected clients. For instance, if CPU utilization spikes to 100 percent, the connected APs may lose connectivity, affecting the clients' experience.

Juniper Mist assigns a quality score from 1 to 5. A score of 1 indicates excellent health, and a score of 5 indicates poor health.

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

Classifiers for Poor Switch Health

When the Switch Health threshold is not met, Juniper Mist classifies the issues as follows.

• Switch Unreachable—The switch can't be accessed.

• Memory—The memory utilization is above 80 percent.

• CPU—The CPU usage of the switch is above 90 percent.

• Temp—The operating temperature of the switch is outside the prescribed threshold range, going either above the maximum limit or below the minimum requirement.

• Power—The switch is consuming over 90 percent of the available power.

Example

• Success Rate—On the left, you see that the threshold was met 50 percent of the time.

• Timeline—In the middle, you can drag your mouse to explore this SLE over 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 switch health issues. All (100 percent) were attributed to CPU. No issues (0 percent) were attributed to the other classifiers.

Note:

If you click the Values button above the SLE blocks, you'll see numbers instead of percentages for the success rate, timeline, and classifiers.