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DevOps & Automation · Intermediate

pyATS

Cisco's Python test automation framework, with the Genie library for parsing, learning, and comparing network device state.

Definition

pyATS uses testbed YAML files to define devices, runs AEtest test scripts, and Genie parsers turn show command output into structured data. It can snapshot and diff network state before and after changes.

Example

genie learn ospf --testbed-file testbed.yaml --output before/

Exam tip

Use pyATS/Genie for network validation testing and state diffing.

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