Day 1: Introduction to Network Automation and Netmiko

Network Automation refers to the process of automating the configuration, management, testing, deployment, and operations of physical and virtual devices within a network. Its importance has grown with the complexity of modern networks.

Key Components
  1. Configuration Management: Ensures consistent configurations across devices and sites.

  2. Change Management: Automates the application of changes across the network.

  3. Compliance Monitoring: Continuously checks compliance with company policies.

  4. Security Management: Manages firewalls, patches, and security configurations.

  1. Efficiency: Reduces manual labor, saving time.

  2. Accuracy: Minimizes human error, enhancing accuracy.

  3. Scalability: Simplifies managing vast network systems.

  4. Compliance & Security: Ensures timely updates and adherence to standards.

  1. Implementation Complexity: Requires planning and skills.

  2. Compatibility Issues: May require updates or replacements of older systems.

  3. Security Concerns: Incorrect automation might lead to vulnerabilities.

Tools and Languages

  1. Python: Widely used for scripting automation tasks.

  2. Ansible: An automation tool for configuration management, application deployment, etc.

  3. SaltStack: Utilized for data-driven orchestration, remote execution, and more.


Netmiko is a Python library used to automate the interaction with various network devices over SSH. It's part of the ecosystem that helps facilitate network automation.


  1. Multi-Vendor Support: Extensive support for various vendors.

  2. Ease of Use: Simplifies SSH connections to devices.

  3. SSH Interaction: Effective handling of SSH sessions.


  1. Configuration Changes: Automating bulk configuration changes.

  2. Monitoring: Periodic monitoring and logging of devices.

  3. Troubleshooting: Assisting in automated troubleshooting procedures.

Benefits and Challenges

  • Benefits:

    • Flexibility: Adaptable to various devices and vendors.

    • Community Support: Strong community contributing to its evolution.

    • Cost-Effectiveness: Open-source and free to use.

  • Challenges:

    • Learning Curve: Requires Python knowledge.

    • Complexity in Large Systems: May need integration with other tools for complete solutions.

  • Here's how you can install Netmiko on both Windows and Linux systems:


    1. Install Python: Ensure that Python (preferably 3.6 or higher) is installed on your system. You can download it from the official Python website.

    2. Install pip: If not already installed, you'll need pip, which is the package installer for Python.

    3. Open Command Prompt: Press Win + R, type cmd, and hit Enter.

    4. Install Netmiko: Type the following command and hit Enter:

       pip install netmiko


  1. Install Python: Most Linux distributions come with Python pre-installed. If not, you can install it using your distribution's package manager. For Ubuntu/Debian, you can use:

     sudo apt-get install python3
  2. Install pip: Similar to Python, you can install pip via your package manager. For Ubuntu/Debian:

     sudo apt-get install python3-pip
  3. Open Terminal: You can open it from your application menu or by pressing Ctrl + Alt + T.

  4. Install Netmiko: Run the following command:

     pip3 install netmiko


  • Windows:

    • Ensure Python and pip are installed

    • Open Command Prompt

    • Run pip install netmiko

  • Linux:

    • Ensure Python and pip are installed

    • Open Terminal

    • Run pip3 install netmiko