Cisco DNA Center - show difference counter in real-time

Why?

If you have to perform some troubleshooting, this sample code may be helpful. This is because finding out which counter value is increasing is as essential as understanding the root cause of the problems occurring in the network devices.

This tool can easily visualize the difference of the counter, such as 'show interface stats' and 'show interface,' which shows how much increased since this program was executed.

A sample code will also help you understand the command runner, one of the DNAC API features, and Genie parser.

Technologies & Frameworks Used

Cisco Products & Services:

Cisco DNA Center
- https://sandboxdnac.cisco.com (or use your own)

Tools & Frameworks:

Python3
Genie: Command paser(pyATS)
Matplotlib: Visualization with Python

Platform

The pyATS ecosystem runs in a Linux® or Linux-type environment. You can install pyATS on any of the following platforms:

Most flavors of Linux, including Ubuntu®, CentOS, and Fedora, for example
macOS (previously Mac OS X)
Windows Subsystem for Linux

Installation

git clone https://github.com/eiuemura/cisco-dnac-show-diff-stats

pip install -r requirements.txt

Running the code

python3 show_diff_stats.py

Trouble shooting

If you found the following error, this command can fix the problem.

TypeError: Couldn't find foreign struct converter for 'cairo.Context'

sudo apt-get install python3-gi-cairo