## Viewing Performance Information for Virtual Port Channels

You can view the relationship among virtual port channels (vPCs). You can view the statistics of all member interfaces and the aggregate of the statistics at the port channel level.

1. From the menu bar, choose Performance > Virtual Port Channels (vPC).

The vPC performance statistics appears and the aggregated statistics of all vPCs are displayed in a tabular manner.

2. Click on a device name in the Primary vPC peer or Secondary vPC peer column to view its member interface.

A popup window displays the member interfaces of the selected device.

3. Click the Chart icon of the corresponding interface to view its historical statistics.

The traffic distribution statistics appear at the bottom of the vPC window. By default, the Cisco DCNM Web Client displays the historical statistics for 24 hours.

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

• 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.