View the capacity issues in an ADC instance 编辑

When an ADC instance has consumed most its available capacity, packet-drop may occur while processing the client traffic. This issue causes low performance in an ADC instance. By understanding such ADC capacity issues, you can proactively allocate additional licenses to steady the ADC performance.

In the Circle Pack View, you can view the ADC instance capacity issues if exists.

To view ADC capacity issues,

  1. Navigate to Infrastructure > Infrastructure Analytics.
  2. Select the circle pack view.

Note

In Infrastructure Analytics, the circle-pack and tabular views display the events and issues that occurred in the last one hour.

The following illustration suggests the capacity issues exist in the selected instance:

View capacity issues Circle Pack view

The issues are categorized on the following capacity parameters:

  • Throughput Limit Reached – The number of packets dropped in the instance after the throughput limit is reached.
  • PE CPU Limit Reached - The number of packets dropped on all NICs after the PE CPU limit is reached.
  • PPS Limit Reached – The number of packets dropped in the instance after the PPS limit is reached.
  • SSL Throughput Rate Limit – The number of times the SSL throughput limit reached.
  • SSL TPS Rate Limit – The number of times the SSL TPS limit reached.

View recommended actions to solve capacity issues

The ADM recommends actions that can solve capacity issues. To view the recommended actions, perform the following steps:

  1. In Infrastructure > Infrastructure Analytics, select the tabular view.

  2. Select the instance that has capacity issues and click Details.

    Instance details

  3. In the instance page, scroll down to the Issues section.

  4. Select each issue and view the recommended actions to resolve capacity issues.

    Recommended actions to solve capacity issues

The ADM polls these events every five minutes from the ADC instance and displays the packet drops or rate-limit counter increments if exists.

The ADM calculates the instance score on the defined capacity threshold.

  • Low threshold – 1 packet drop or rate-limit counter increment
  • High threshold – 10000 packets drop or rate-limit counter increment

Therefore, when an ADC instance breaches the capacity threshold, the instance score is impacted.

When packets drop or rate-limit counter increments, an event is generated under the ADCCapacityBreach category. To view these events, navigate to Accounts > System Events.

Capacity breach

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