> # Viewing Performance Information on Port Groups

> You can view the performance of devices connected to the port groups.

> 1. From the menu bar, choose Performance > End Devices > Port Groups.

> You see the Port Groups Traffic and Errors window.

> 2. You can use the drop-down to filter the view by 24 hours, Week, Month and Year.
> 3. Click the name port group to see the members of that port group.

> There are variations to this procedure. In addition to these basic steps, you can also perform the following steps to view detailed information for the port groups:

> - To change the time range for this graph, select it from the drop-down list in the upper right corner.
> - To view the detailed information for a specific period, drag the slider control to choose the time interval for which you need the information.
> - Use the chart icons to view the traffic chart in varied views.
> - You can also use the icons to Append, Predict and Interpolate Data.
> - To export the data into a spreadsheet, click the Export to Excel icon in the upper-right corner and then click Save.

> Note If the performance tables do not contain any data, see the Performance Manager Collections section to turn on performance data collection.

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