OSPF

Lesson in the Network Engineer Roadmap · Stage 11: Routing

Last updated 14 September 2026

What is OSPF?

OSPF, or Open Shortest Path First, is a link-state interior gateway routing protocol used within a single autonomous system or organization. It works by having each router build a complete map of the network topology and then calculate the shortest path to every destination using Dijkstra's algorithm. OSPF converges quickly after network changes and is widely used in medium to large enterprise networks.

Study this in the interactive course See the whole Network Engineer roadmap

Free resources to learn OSPF

ArticleWhat is OSPF?
VideoWhat is OSPF and How Does It Work?

OSPF: common questions

Can I learn OSPF in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain OSPF in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this OSPF tutorial for beginners?

It is lesson 95 of 195 in the free Network Engineer roadmap, in stage 11, Routing. If you are new to Network Engineer, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.