JNCIA-DevOps case studies
JNCIA-DevOps · Put your knowledge to work in context.
The JNCIA-DevOps credential is listed in our catalog as the Juniper Networks Certified Associate DevOps certification, an associate-level qualification aimed at network engineers who are moving from manual device administration toward programmatic, repeatable workflows. It is intended for people who already understand basic Junos configuration and now want to demonstrate that they can automate, template, and integrate network operations using code, version control, and APIs. The JNCIA-DevOps case studies are 5 cases and about 3,086 words.
1Intermittent PyEZ session failures against 60 MX routers
Your team runs a Python/PyEZ inventory job against 60 Juniper MX routers every 15 minutes from a single Linux jump host. The script opens a Device session per router, gathers facts, retrieves interface counters, and closes the session.
636 words, about 3 min2Weekly CAB versus automated change with segregation of duties
A 30-person network engineering group supports 400 branch offices. Changes currently follow a weekly change advisory board: engineers submit a ticket, wait up to seven days, then apply CLI changes during a 4-hour window.
660 words, about 3 min3Ansible override wipes branch-specific SRX configuration
A platform team manages 120 SRX branch firewalls with Ansible. The repository contains a single file, baseline.conf, captured from a headquarters SRX, and the nightly play uses junos config with src: baseline.conf and update: override.
606 words, about 3 min4CI pipeline reports green after removing a management filter
A CI/CD pipeline built in GitLab deploys Junos configuration to 12 EX switches. The pipeline has three stages: lint, deploy, and notify.
572 words, about 3 min5Polling full configuration every 30 seconds overloads 200 routers
A monitoring team collects interface statistics from 200 Junos devices every 30 seconds. Their Python script opens a NETCONF session, issues a get-config request for the entire running configuration with no filter, parses the full configuration, and extracts two interface counters from the XML.
612 words, about 3 min