Most network automation tutorials start with a playbook that configures a VLAN. That’s fine, but it skips the part where you understand why Ansible is structured the way it is and when you should reach for something else. Here’s a practical foundation. Why Ansible for Networks? Ansible uses an agentless model — it …

OSPF link-state advertisements are the currency of the protocol. Understanding which LSA type carries what information — and who generates it — is essential for troubleshooting convergence issues. Quick Reference Type Name Originated By Scope 1 Router LSA Every router Single area 2 Network LSA DR on broadcast segment …