Network Automation Cookbook

How it works...

Batfish provides a built-in validation method to validate the proper traffic forwarding between endpoints within your network topology. This is achieved using the assert_all_flows_succeed method. This method validates that all the flows between given endpoints are successful. In order for Batfish to validate the traffic flow for any given flow, we need to provide the following information:

• The start node location
• The source IP for the flow
• The destination IP addresses for the flow

Batfish will use the data model that it generated to build the forwarding table for all the nodes in our network topology and to validate that the flows we are testing will be forwarded within the network.

In our sample topology, we want to validate ...