About Clients
A client is an end device (computer, phone, and so on) that is connected to a network device (access point or switch). Cisco DNA Center supports both wired and wireless clients.
A client is an end device (computer, phone, and so on) that is connected to a network device (access point or switch). Cisco DNA Center supports both wired and wireless clients.
A client is an end device (computer, phone, and so on) that is connected to a network device (access point or switch). Cisco DNA Center supports both wired and wireless clients.
Use this procedure to get a global view of the health of all the wired and wireless client devices and to determine if there are potential issues that must be addressed.
Configure Cisco DNA Assurance. See Basic Workflow for Configuring Cisco DNA Assurance.
Step 1 |
From the Cisco DNA Center home page, click Assurance. The Overall Health window appears. |
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Step 2 |
Click Health > Clients. The Client Health page appears with the following information. The colors in the charts represent the health of the client devices.
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Step 3 |
To display a 360° view of the client, do one of the following:
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The Client Health Summary score is the percentage of the number of healthy client devices (a health score from 8 to 10) divided by the total number of client devices. The score is calculated every 5 minutes.
For example: 90% health score = 90 client devices with health score from 8 to 10 / 100 client devices.
The Client Category Health score (Wireless or Wired) is the percentage of the number of healthy client devices (a health score from 8 to 10) in a target category, divided by the total number of client devices in that category. The score is calculated every 5 minutes.
For example: 90% health score = 90 client devices in a target category with health score from 8 to 10 / 100 client devices in that category.
The Individual Client Health score is the sum of the Client Onboarding score and the Client Connectivity score. The client health score ranges from 1 to 10, with a score of 0 for inactive clients. It is calculated as follows:
Wired Client—Link to first switch is up, authentication and authorization is successful, IP address is received. Client score is 10.
Wireless Client—Client joined the network and has good connection in terms of the RSSI and SNR KPIs.
The Client Onboarding score indicates the experience of a client device while connecting to the network.
If a client connects to the network successfully, the score is 4.
If a client is unable to connect to the network, the score is 1.
The Client Onboarding score is calculated as follows:
Wired Client—Link to the first switch is up, authentication and authorization is successful, and IP address is received.
Wireless Client—Client Onboarding score range is from 1 to 4. When the client connects to the network successfully, the score is 4. If the client is unable to connect to the network, the score is 1.
The Client Connectivity score indicates the experience of the client device after the device is connected to the network.
The Client Connectivity score is calculated as follows:
Wired Client—Connectivity score can be 0, 2, or 6. Connectivity to the DNS server or link errors determines the Connectivity score and the resulting Overall Health score as shown below:
If a client onboards successfully, but is unable to connect to the DNS server, the Connectivity score is 0.
If a client onboards successfully and is able to connect to a DNS server, but has link errors, the Connectivity score is 2 and the Overall Health score is 6.
If the client onboards successfully and there are no link errors between the client and the first hop switch, the Connectivity score is 6 and the Overall Health score is 10.
Wireless Client—Connectivity score range is 0 - 6. The RSSI and SNR range determines the Connectivity score and the resulting Overall Health score is calculated as the weighted average of the RSSI-driven Connectivity score and the SNR-driven Connectivity score.
RSSI-Driven Connectivity Score
If RSSI is less than -72 dBm, the RSSI-Driven Connectivity score is 0.
If RSSI is equal to -71 dBm, the RSSI-Driven Connectivity score is 1.
If RSSI is equal to -70 dBm, the RSSI-Driven Connectivity score is 2.
If RSSI is equal to -69 dBm, the RSSI-Driven Connectivity score is 3.
If RSSI is equal to or greater than -68 dBm and less than -55 dBm, the RSSI-Driven Connectivity score is 4.
If RSSI is equal to or greater than -55 dBm and less than -45 dBm, the RSSI-Driven Connectivity score is 5.
If RSSI is equal to or greater than -45 dBm, the RSSI-Driven Connectivity score is 6.
SNR-Driven Connectivity Score
If SNR is from 0 to 9, the SNR-Driven Connectivity score is 0.
If SNR is equal to 10, the SNR-Driven Connectivity score is 1.
If SNR is 11 or 12, the SNR-Driven Connectivity score is 2.
If SNR is 13 or 14, the SNR-Driven Connectivity score is 3.
If SNR is 15, 16, 17, 18, or 19, the SNR-Driven Connectivity score is 4.
If SNR is from 20 to 39, the SNR-Driven Connectivity score is 5.
If SNR is equal to or greater than 40, the SNR-Driven Connectivity score is 6.
Use this procedure to view details about a specific client device and to determine if there are potential issues that must be addressed.
Step 1 |
From the Cisco DNA Center home page, click Assurance. The Overall Health window appears. |
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Step 2 |
Click Health > Clients. The Client Health window appears. |
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Step 3 |
Do one of the following:
A 360° view of the client device appears with the following information.
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Step 4 |
View information about issues, onboarding, event viewer, path trace, application experience, and detail information under the appropriate category.
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The Individual Client Health score is the sum of the Client Onboarding score and the Client Connectivity score. The client health score ranges from 1 to 10, with a score of 0 for inactive clients. It is calculated as follows:
Wired Client—Link to first switch is up, authentication and authorization is successful, IP address is received. Client score is 10.
Wireless Client—Client joined the network and has good connection in terms of RSSI and SNR KPIs.
See the following topics:
Trace the Path of a Device
You can perform a path trace between two nodes in your network—a specified source device and a specified destination device. The two nodes can be a combination of wired or wireless hosts or Layer 3 interfaces or both. In addition, you can specify the protocol that the Cisco DNA Center controller should use to establish the path trace connection, either TCP or UDP.
When you initiate a path trace, the Cisco DNA Center controller reviews and collects network topology and routing data from the discovered devices. It then uses this data to calculate a path between the two hosts or Layer 3 interfaces, and displays the path in a path trace topology. The topology includes the path direction and the devices along the path, including their IP addresses. The display also shows the protocol of the devices along the path (Switched, STP, ECMP, Routed, Trace Route) or other source type.
The path trace feature works in a similar manner in all the devices. You can perform a path trace from the Client 360 or Device 360 window.
Make sure that the devices (routers, switches, wireless controllers, and access points) are discovered. See Discover Your Network Using an IP Address Range, Discover Your Network Using CDP, or Discover Your Network Using LLDP.
Step 1 |
From the Client 360 or Device 360 page, in the Path Trace category, click Run New Path Trace. The Set Up Path Trace dialog box appears. |
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Step 2 |
Do one of the following:
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Step 3 |
Click Show Options, and then do the following, as required: |
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Step 4 |
Click Start Path Trace. The path trace topology appears. This includes the path direction and the intermediate devices along the path, and their IP addresses. The display also shows the protocol of the devices along the path, Switched, STP, ECMP, Routed, Trace Route, or other source type. In addition, you can also view the following information from the path trace topology:
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