Overall Study Plan Suggestion

1. Week 1–2: OSPF deep dive (theory + 5–10 labs).
2. Week 3: Security (ACLs, AAA, CoPP) integrated with OSPF setups.
3. Week 4+: Automation on top of your routing/security labs.
4. Mix in full practice exams and random troubleshooting.

Extra Good Sources:

• GNS3 official free ENCOR course by David Bombal (full playlist on YouTube).
• Boson NetSim (if you want guided sims alongside GNS3).
• Cisco DevNet for automation sandboxes (complements GNS3).

Would you like:

• Specific lab topology recommendations (e.g., a good multi-area OSPF + security setup)?
• Links to downloadable GNS3 project files?
• Help with a particular sub-topic (e.g., OSPF authentication, Python Netmiko script, CoPP config)?

Tell me more about your current GNS3 setup (images, RAM, etc.) or which sub-topic you want to tackle first, and I can give more precise configs or next steps! You've got this.