Monitor Power over Ethernet

About PoE

The Cisco DNA Center Power over Ethernet (PoE) enables you to monitor the PoE-capable devices in your network. It also monitors the power summary of switches supplying PoE, which provides information such as a switch's power budget, used power, remaining power, and power usage and allows viewing the allocated power and power load of switches.

Setup Workflow for PoE Telemetry

To enable PoE telemetry and analytics in Assurance, you need to perform the required setup tasks. A basic workflow for setup involves the following tasks:

  1. Configure NETCONF on the network devices used for PoE telemetry.

    For details, see Configure NETCONF on Your Devices for PoE Telemetry.

  2. Update the telemetry settings in Cisco DNA Center.

    For details, see Update Telemetry Settings for PoE Telemetry.

Setup Workflows

The setup workflow for PoE telemetry varies depending on the software version and configuration of Cisco DNA Center and network devices that support PoE telemetry.

If you are doing a fresh installation of Cisco DNA Center, refer to the following table:

Fresh Installation of Cisco DNA Center
Network Device Configuration Required Setup Tasks

  • IOS XE version is 16.12.3s.

  • NETCONF is disabled.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

  • IOS XE version is upgraded from 16.12.2 to 16.12.3s with SWIM.

  • NETCONF is disabled.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

  • IOS XE version is upgraded from 16.12.2 to 16.12.3s with SWIM.

  • NETCONF is enabled.

  1. Update the telemetry settings in Cisco DNA Center.

If you are upgrading to Cisco DNA Center from an earlier release, refer to the following table:

Upgrade from an Earlier Release
Network Device Configuration Required Setup Tasks

  • IOS XE version is upgraded from 16.12.2 to 16.12.3s with SWIM.

  • NETCONF disabled.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

  • IOS XE version is upgraded from 16.12.2 to 16.12.3s with SWIM.

  • NETCONF is enabled.

  1. Update the telemetry settings in Cisco DNA Center.

  • IOS XE version is 16.12.3s.

  • NETCONF is disabled.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

  • IOS XE version is 16.12.3s.

  • NETCONF is enabled.

  1. Update the telemetry settings in Cisco DNA Center.

If there are changes to the network device that supports PoE telemetry in Inventory, refer to the following table:

Network Device Changes in Inventory
Change to Network Device Required Setup Tasks

Remove a device from Cisco DNA Center Inventory, and then add it back.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

Add a new device to Cisco DNA Center Inventory.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

Use a replacement device in Cisco DNA Center Inventory.

  1. Enable NETCONF on the device.

  2. Update the telemetry settings in Cisco DNA Center.

Configure NETCONF on Your Devices for PoE Telemetry

Use this procedure to configure NETCONF on your network devices for PoE telemetry. To use PoE telemetry, the supporting network devices must have NETCONF enabled.

Before you begin

Depending on the configuration of your Cisco DNA Center and network devices, you might not need to do this procedure to set up PoE telemetry. For details, see Setup Workflow for PoE Telemetry.

Procedure

Step 1

Configure the NETCONF port for an existing network device:

  1. From the top-left corner, click the menu icon and choose Provision > Inventory.

    The Inventory window appears.

  2. Check the check box of the network device to be configured to enable NETCONF.

  3. From the Actions drop-down list, choose Inventory > Edit Device.

  4. From the Type drop-down list, choose Network Device.

  5. Expand the NETCONF area.

  6. In the Port field, enter 830.

    Note

     

    NETCONF provides a mechanism to install, manipulate, and delete configurations of network devices.

  7. Click Update.

    The device's NETCONF port is configured.

Step 2

Create a Template Editor project for NETCONF configuration:

  1. From the top-left corner, click the menu icon and choose Tools > Template Editor.

    The Template Editor window appears.

  2. From the left pane, click the icon and choose Create Project.

  3. In the Name field, enter a name for the project.

  4. Click Add.

    The project is added to the left pane of Template Editor.

Step 3

Create a template in the project for NETCONF configuration:

  1. From the left pane, hover your cursor over the icon to the right of the project and choose Add Template.

  2. In the Name field, enter a name for the template.

  3. In the Device Type(s) field, click Edit.

  4. Check the check box of Switches and Hubs to apply the template to add switches and hubs.

    Note

     

    If you want to specify the exact models of the switches, expand Switches and Hubs and check the check box of the specific switch model.

  5. Click Back to Add New Template.

  6. Click the Software Type drop-down list and choose IOS-XE.

  7. Click Add.

    The template is created and appears.

Step 4

Add content in the template:

  1. In the template, enter the following:

    netconf-yang

  2. From the Actions drop-down list, choose Save.

    The content is saved to the template.

  3. From the Actions drop-down list, choose Commit.

  4. In the Commit Note text box, enter a note.

  5. Click Commit.

Step 5

Create a network profile and associate the template:

  1. From the top-left corner, click the menu icon and choose Design > Network Profile.

    The Network Profiles window appears.

  2. Click +Add Profile and choose Switching.

  3. In the Profile Name field, enter a name for the network profile.

  4. Click the Day-N Templates tab.

  5. Click +Add.

  6. From the Device Type drop-down list, choose Switches and Hubs.

  7. From the Template drop-down list, choose the template that was created in Step 3.

  8. Click Save.

    The network profile is created and appears in the Network Profiles window.

Step 6

Assign the site(s) for the network profile:

  1. From the Sites column, click Assign Site.

  2. Check the check box of the site that the network device is assigned to.

  3. Click Save.

Step 7

Provision the NETCONF configuration to the network device:

  1. From the top-left corner, click the menu icon and choose Provision > Inventory.

    The Inventory window appears.

  2. Check the check box of the network device for PoE telemetry.

  3. From the Actions drop-down list, choose Provision > Provision Device.

  4. In the Assign Site step, click Next.

  5. In the Advanced Configuration step, check the Provision these templates even if they have been deploy before check box.

  6. Click Next.

  7. In the Summary step, click Deploy.

  8. Click Apply.

Provisioning starts and the NETCONF configuration is pushed to the network device.

Update Telemetry Settings for PoE Telemetry

Use this procedure to update the telemetry settings in Cisco DNA Center. This is a required step after setting the NETCONF port and pushing the NETCONF configuration to the network devices for PoE telemetry.

Before you begin

Ensure that the network devices being set up for PoE telemetry have an established NETCONF port and the correct NETCONF configuration. For details, see Configure NETCONF on Your Devices for PoE Telemetry.

Procedure

Step 1

From the top-left corner, click the menu icon and choose Provision > Inventory.

The Inventory window appears.

Step 2

Check the check boxes of the network devices that have been set up for PoE telemetry.

Step 3

From the Actions drop-down list, choose Telemetry > Update Telemetry Settings.

Step 4

Check the Force Configuration Push check box.

Note

 

This option pushes the configuration changes to the device.

Step 5

Click Next.

Step 6

Set the schedule for when the telemetry settings are updated by clicking a radio button:

  • Now: Choose this option to update the telemetry settings immediately.

  • Later: Choose this option to schedule the task for another time. Specific the time and date.

Step 7

Click Apply.

Monitor PoE-Capable Devices in Your Network

Use this procedure to get a global view of PoE-capable devices in your network.

Procedure

Step 1

From the top-left corner, click the menu icon and choose Assurance > PoE.

The PoE dashboard appears.

Figure 1. PoE Dashboard

Step 2

Click the location option () in the top-menu bar to display the location pane.

The location pane has the following functionality:

Location Option
Item Description

toggle button

List View

Click this toggle button to display the sites and buildings from your network in a list format.

Click the drop-down list for the following options:

  • Hierarchical Site View: Sorts the list at a site level.

    From the Apply to Page Location column, click Apply for a site or building to display data only for that location on to the Network dashboard.

  • Building View: Sorts the list at a building level.

    From the Apply to Page Location column, click Apply for a building to display data only for that building on to the Network dashboard.

toggle button

Map View

Click this toggle button to display the health of all the network sites on a geographic location-oriented network health map. By default, the network sites that are represented are color-coded according to the severity of the problem.

Topology tool

Click this icon to open the Topology tool. The Topology window, has the following views:

  • Geographical View: Click this toggle button to display your network in a geographical map.

    Hover your cursor over a location to view the percentage of healthy devices.

  • Topology View: Click this toggle button to display a topology of how the components in the network are connected.

    Hover your cursor over a device to display device information, such as device role, IP address, and software version. To obtain a 360° view of the device, click View Details 360.

Step 3

Click the time range setting () in the top-menu bar to specify the time range of data that appears on the dashboard.

  1. From the drop-down menu, choose the time range: 3 Hours, 24 Hours, or 7 Days.

  2. Specify the Start Date and time; and the End Date and time.

  3. Click Apply.

Step 4

Click the Actions drop-down list in the top-menu bar for the following functionality:

Step 5

Use the PoE dashlets for the following functionality:

AP Power Save Mode Distribution

AP Power Save Mode Distribution displays AP power save capability as well as the average number of APs in Power Save vs Normal mode.

The Latest tab shows the number of APs that support the Power Save Capability and the Power Save mode versus Normal mode.

The Trend tab provides the following information:

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

    Note

     

    The data point that is displayed is the start time of the corresponding 10-minute or 1-hour window. For example, all the data that is received between 10:00 to 10:10 is displayed with the time value of 10:00. Similarly, for the hourly window, the data that is received between 10:00 to 11:00 is displayed with a time stamp of 10:00. This data point is available at the end of the corresponding time window.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, hover your cursor over the color-coded chart to view the total number of APs distributed in power save capability over Power save mode and Normal mode at a specific time. You can filter the data in the table that is displayed below the chart based on the number of the APs in the top sites and top device types.

AP Power Savings

AP Power Savings mode will either shut down AP's radio or reduce their radio spatial stream to decrease power consumption, and displays overall power consumed and saved during the time range.

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

    Note

     

    The data point displayed is the start time of the corresponding 10-minute or 1-hour window. For example, all the data that is received between 10:00 to 10:10 is displayed with the time value of 10:00. Similarly, for the hourly window, the data that is received between 10:00 to 11:00 is displayed with a time stamp of 10:00. This data point is available at the end of the corresponding time window.

Click View Details to open a AP Power Savings slide-in pane with additional details. On the slide-in pane, the color-coded chart shows the power consumed by APs over a time range. Hover your cursor over the chart to view the total number of APs, power saved in power save mode, and normal mode over a period of time.

PoE AP Power Mode Distribution

Displays the distribution of fully powered and partially powered APs.

The Latest tab provides a 10-minute snapshot view.

The Trend tab provides the following:

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

    Note

     

    The data point displayed is the start time of the corresponding 10-minute or 1-hour window. For example, all the data that is received between 10:00 to 10:10 is displayed with the time value of 10:00. Similarly, for the hourly window, the data that is received between 10:00 to 11:00 is displayed with a time stamp of 10:00. This data point is available after the end of the corresponding window.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click a color segment in the chart or its corresponding legend to refresh the data in the table that is displayed below the chart.

PoE Operational State Distribution

Displays the number of PoE-capable devices in your network. The color-coded chart provides the count of devices based on whether they are being supplied with PoE or not. For devices that are not being supplied with PoE, this is further characterized by the reason why.

The Latest tab provides a 10-minute snapshot view.

The Trend tab provides the following:

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

    Note

     

    The data point displayed is the start time of the corresponding 10-minute or 1-hour window. For example, all the data that is received between 10:00 to 10:10 is displayed with the time value of 10:00. Similarly, for the hourly window, the data that is received between 10:00 to 11:00 is displayed with a time stamp of 10:00. This data point is available after the end of the corresponding window.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click a color segment in the chart or its corresponding legend to refresh the data in the table that is displayed below the chart.

PoE Powered Device Distribution

View the distribution of the devices currently using PoE for a certain criteria. Use the drop-drop list to specify the following criteria:

  • Allocated Power

  • Powered Device Class

The Latest tab provides a 10-minute snapshot view.

The Trend tab provides the following:

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

    Note

     

    The data point displayed is the start time of the corresponding 10-minute or 1-hour window. For example, all the data that is received between 10:00 to 10:10 is displayed with the time value of 10:00. Similarly, for the hourly window, the data that is received between 10:00 to 11:00 is displayed with a time stamp of 10:00. This data point is available after the end of the corresponding window.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click a color segment in the chart or its corresponding legend to refresh the data in the table that is displayed below the chart.

Power Allocation Load Distribution

View the distribution of switches based on its power load for PoE.

The Latest tab provides a 10-minute snapshot view.

The Trend tab provides the following:

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

    Note

     

    The data point displayed is the start time of the corresponding 10-minute or 1-hour window. For example, all the data that is received between 10:00 to 10:10 is displayed with the time value of 10:00. Similarly, for the hourly window, the data that is received between 10:00 to 11:00 is displayed with a time stamp of 10:00. This data point is available after the end of the corresponding window.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click a color segment in the chart or its corresponding legend to refresh the data in the table that is displayed below the chart.

PoE Insights

View the percentage of the devices currently using PoE which are configured to support the following PoE technologies or meet IEEE Compliance:

  • Perpetual PoE

  • Fast PoE

  • IEEE Compliant

  • UPOE+

Use the drop-down list to choose the characteristic.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click a color segment in the chart or its corresponding legend to refresh the data that is displayed in the table below the chart.

Power Usage

View the total power consumption and allocated power by devices currently using PoE. Use the drop-down list to select Consumption or Allocation view to display the respective data in the Latest and Trend tab.

The Latest tab provides a 10-minute snapshot view. The pie chart displays the Power Allocation details such as PoE Power Allocation, System Power Allocation, and Available Power, and Power Consumption details such as PoE Power Consumption and System Power Consumption measured in watts.

The Trend tab provides the following:

  • If you chose 24 hours in the time range settings, the trend chart provides 10-minute data points for the entire 24-hour range of power usage.

  • If you chose greater than 24 hours in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click on a color segment in the chart or its corresponding legend to view the System Power information ( System Power Consumption and System Power Allocation) and PoE Power information ( PoE Power Consumption and PoE Power Allocation) of the devices over a time period in the table that is displayed below the chart.

You can select the data displayed as horizontal bars to filter the preceding table that is displayed based on the power usage, device role and location.

PoE Port Availability

View the availability of ports based on their power load for PoE.

The Latest tab provides a 10-minute snapshot view.

The Trend tab provides the following:

  • If you chose 24 hours or less in the time range settings, the trend chart provides 1-hour data points (aggregated from the 10-minute data) for the entire time range.

  • If you chose 7 days in the time range settings, the trend chart provides 12-hour data points (aggregated from the 1-hour data) for the entire time range.

Click View Details to open a slide-in pane with additional details. From the slide-in pane, you can click a 1-hour data point in the chart to refresh the data in the table that is displayed below the chart.