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This chapter contains the following sections:
Cisco XNC includes a variety of tools that you can use to troubleshoot your network connections. From the Troubleshoot tab, you can do the following:
The Policy Analyzer allows you to view detailed information about TIF policies. You can use the Policy Analyzer to perform the following tasks:
Step 1 | On the Cisco XNC menu bar, click Troubleshoot. |
Step 2 |
In the Policies tab, choose the TIF policy that you want to analyze. Enter a value in the Search combo box and click the search icon to limit the number of entries that appear. |
Step 3 | To monitor the TIF policy flows, perform the following tasks: |
Step 4 | To run an SDN trace on a TIF policy flow, perform the following tasks: |
Step 5 | Click SDN Trace Status to view the information from the last SDN trace that was run. |
Step 6 | Click Policy Statistics to view statistics for the selected TIF policy. |
The SDN Analyzer downloads packet capture (pcap) files for the interface that you select. The individual pcap files are consolidated into one zip file.
By default, the SDN Analyzer captures 5 pcap files with 100 MB of network data each. If more than the set amount of data is captured, the earlier data is overwritten. You can change the amount of data collected in the config.ini file.
The SDN Analyzer captures packets that come to Cisco XNC and outputs the results to a zip file. The location of the zip file depends upon your browser settings.
You must have root privileges on the server that is running Cisco XNC to run the SDN Analyzer.
Step 1 | On the Cisco XNC menu bar, click Troubleshoot. |
Step 2 | In the SDN Analyzer tab, click the interface that you want to view. |
Step 3 | Click Start Analyzer. |
Step 4 | When you have finished collecting data, click Stop Analyzer. |
Step 1 | Navigate to the xnc/configuration directory that was created when you installed the software. |
Step 2 | Use any text editor to open the config.ini file. |
Step 3 | Locate the following parameters: |
Step 4 | Change the files as appropriate. We recommend using a file size of no more than 100 MG, and increasing the number of pcap files. |
Step 5 | Save the file and exit the editor. |
Step 6 | Restart Cisco XNC. |