What are the best ways to validate network configurations in a multi-vendor environment?

1 Use a common data model

One of the first steps to validate network configurations in a multi-vendor environment is to use a common data model that can represent the desired state and configuration of all the devices in the network. A common data model can help you abstract the vendor-specific details and focus on the network functionality and intent. You can use a common data model such as YANG, NETCONF, or OpenConfig to define the network configuration in a standardized and structured way, and then use tools or scripts to translate it into vendor-specific commands or APIs.

2 Use automated testing tools

Another way to validate network configurations in a multi-vendor environment is to use automated testing tools that can verify the network behavior and performance against the expected outcomes. Automated testing tools can help you reduce human errors, save time, and increase reliability. You can use tools such as Ansible, Nornir, PyTest, or Batfish to automate the testing of network configurations in a multi-vendor environment. These tools can help you check the syntax, semantics, and functionality of the network configurations, as well as simulate the network state and behavior before and after applying the changes.

4 Use network monitoring and feedback

A fourth way to validate network configurations in a multi-vendor environment is to use network monitoring and feedback to measure the impact and effectiveness of the changes. Network monitoring can help you collect and analyze the network data, such as traffic, performance, availability, and security. Feedback can help you identify and resolve any issues, gaps, or deviations from the expected results. You can use network monitoring tools such as Nagios, Zabbix, or SolarWinds to monitor the network health and performance, and use tools such as Slack, Teams, or Email to communicate and share feedback with other network administrators.

5 Use continuous improvement and learning

A fifth way to validate network configurations in a multi-vendor environment is to use continuous improvement and learning to optimize and enhance the network performance and functionality. Continuous improvement and learning can help you adapt to the changing network requirements, technologies, and best practices. You can use continuous improvement and learning methods such as PDCA, Kaizen, or Lean to evaluate and improve the network configuration processes, tools, and outcomes. You can also use resources such as books, blogs, podcasts, or courses to update and expand your network configuration skills and knowledge.

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?