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The Network Reasoner tool helps you troubleshoot various issues on your network devices. The Network Reasoner tool hosts separate workflows for troubleshooting issues with CPU utilization, interfaces, and power supplies. You must install the Machine Reasoning package to view the Network Reasoner feature under the Tools menu. For more information, see the Cisco DNA Center Administrator Guide.
In the Cisco DNA Center GUI, click the Menu icon (
) and choose . The Network Reasoner dashboard shows the following workflows, which include the workflow description, number of affected
devices in the last 24 hours, and impact of running a workflow on a network:
CPU Utilization: Troubleshoots the causes for high CPU utilization on a device
Interface Down: Troubleshoots the causes for a downed interface on a device
Power Supply: Determines the root cause for power supply problems on a device
Ping Device: Troubleshoots the causes for IP connectivity problems of a device in the source network to a device in the target network
CPU utilization troubleshooting support is available only for the following network devices with software version 16.9.3 and later:
Cisco Catalyst 9400 Series Switches
Cisco Catalyst 9300 Series Switches
Cisco Catalyst 3850 Series Switches
Cisco Catalyst 3650 Series Switches
Install the Machine Reasoning package. See Download and Install Packages and Updates in the Cisco DNA Center Administrator Guide.
Create a user role with write permissions for Machine Reasoning under the System function. For more information, see Configure Role-Based Access Control in the Cisco DNA Center Administrator Guide.
| Step 1 |
In the Cisco DNA Center GUI, click the Menu icon ( |
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| Step 2 |
Click the CPU Utilization tab. The CPU Utilization page displays the filtered list of devices with high CPU utilization in the past 24 hours. Click All to see the list of all devices from the inventory, and you can choose any device to run the workflow. |
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| Step 3 |
Choose the device that you want to troubleshoot. Click Filter and enter the devices by entering Tag, Device Name, IP Address, Device Type, Site, or Reachability. |
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| Step 4 |
Click Troubleshoot. |
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| Step 5 |
In the Reasoner Input window, enter the CPU Utilization Threshold percentage that you want to check against. |
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| Step 6 |
Click Run Machine Reasoning.
The CPU Utilization window appears, where you can see the Root Cause Analysis of the high CPU utilization for the chosen device. The Reasoning Activity tab shows the various parameters that are checked as part of the troubleshooting process. |
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| Step 7 |
(Optional) Click Stop to stop the ongoing reasoning activity. |
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| Step 8 |
Click the Conclusion tab to see the processes that consume more CPU and the utilization percentage. |
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| Step 9 |
Click View Relevant Activities for each process to view the Activity Details in the right pane. |
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| Step 10 |
(Optional) Click Run Again to rerun the troubleshooting process for the same device.
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Power supply troubleshooting workflow support is available only for the following network devices with software version 16.6.1 and later:
Cisco Catalyst 3650 Series Switches
Cisco Catalyst 3850 Series Switches
Cisco Catalyst 9300 Series Switches
Cisco Catalyst 9400 Series Switches
Cisco Catalyst 9500 Series Switches
Install the Machine Reasoning package. See Download and Install Packages and Updates in the Cisco DNA Center Administrator Guide.
Create a user role with write permissions for Machine Reasoning under the System function. For more information, see Configure Role-Based Access Control in the Cisco DNA Center Administrator Guide.
| Step 1 |
In the Cisco DNA Center GUI, click the Menu icon ( |
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| Step 2 |
Click the Power Supply tab. The Power Supply page displays the filtered list of devices with power supply failures in the past 24 hours. Click All to see the list of all devices in the inventory. You can choose any device to run the workflow. |
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| Step 3 |
Choose the device that you want to troubleshoot. Click Filter and filter the devices by entering Tag, Device Name, IP Address, Device Type, Site, or Reachability. |
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| Step 4 |
Click Troubleshoot. The Power Supply window appears, where you can see the Root Cause Analysis of the power supply failure for the chosen device. The Reasoning Activity tab shows the various parameters that are checked as part of the troubleshooting process. |
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| Step 5 |
(Optional) Click Stop to stop the ongoing reasoning activity. |
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| Step 6 |
Click the Conclusion tab to see the Stack Identifier, Product ID, Serial Number, and Status of the power supply for the chosen device and the suggested action. |
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| Step 7 |
Click View Relevant Activities for each stack identifier to view the Activity Details in the right pane. |
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| Step 8 |
(Optional) Click Run Again to rerun the troubleshooting process for the same device.
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Interface down troubleshooting workflow support is available only for the following network devices with software version 16.9.3, and later:
Cisco Catalyst 3650 Series Switches
Cisco Catalyst 3850 Series Switches
Cisco Catalyst 9300 Series Switches
Cisco Catalyst 9400 Series Switches
Cisco Catalyst 9500 Series Switches
Install the Machine Reasoning package. See Download and Install Packages and Updates in the Cisco DNA Center Administrator Guide.
Create a user role with write permissions for Machine Reasoning under the System function. For more information, see Configure Role-Based Access Control in the Cisco DNA Center Administrator Guide.
| Step 1 |
In the Cisco DNA Center GUI, click the Menu icon ( |
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| Step 2 |
Click the Interface Down tab. The Interface Down page displays the filtered list of devices with an interface that went down in the past 24 hours. Click All to see the list of all devices from the inventory, and you can choose any device to run the workflow. |
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| Step 3 |
Choose the device that you want to troubleshoot. Click Filter and enter the devices by entering Tag, Device Name, IP Address, Device Type, Site, or Reachability. |
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| Step 4 |
Click Troubleshoot. |
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| Step 5 |
In the Reasoner Input window, enter the interface name that you suspect has issues. |
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| Step 6 |
Click Run Machine Reasoning. The Interface Down window appears, where you can see the Root Cause Analysis of the downed interface for the chosen device. The Reasoning Activity tab shows the various parameters that are checked as part of the troubleshooting process. |
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| Step 7 |
(Optional) Click Stop to stop the ongoing reasoning activity. |
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| Step 8 |
Click the Conclusion tab to see the potential root causes for the interface down issue and the suggested action. |
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| Step 9 |
Click View Relevant Activities for each root cause analysis to view the Activity Details in the right pane. |
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| Step 10 |
(Optional) Click Run Again to rerun the troubleshooting process for the same device.
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As ping is a simple command, IP connectivity troubleshooting support is available for all the network devices.
Install the Machine Reasoning package. See Download and Install Packages and Updates in the Cisco DNA Center Administrator Guide.
Create a user role with write permissions for Machine Reasoning under the System function. For more information, see Configure Role-Based Access Control in the Cisco DNA Center Administrator Guide.
| Step 1 |
In the Cisco DNA Center GUI, click the Menu icon ( |
| Step 2 |
In the Network Reasoner dashboard, click Ping Device. |
| Step 3 |
In the Devices window, choose a device and click Troubleshoot. |
| Step 4 |
In the Reasoner Inputs window, enter Target IP Address and click Run Machine Reasoning. |
| Step 5 |
Click View Details to view the ping status. |
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