OSPF Overview and Features
Open Shortest Path First (OSPF) is a link-state routing protocol that uses Dijkstra's algorithm to find the shortest path to all known destinations. This comprehensive guide covers OSPF concepts, configuration, and troubleshooting for CCNP ENARSI preparation.
OSPF (Open Shortest Path First) is a link-state routing protocol that uses Dijkstra's Shortest Path First algorithm to build and calculate the shortest path to all known destinations. OSPF is an open standard protocol that can be implemented by any vendor.
Key Features:
- Fast Convergence: Uses SPF algorithm for rapid network adaptation.
- Hierarchical Design: Uses areas for better scalability.
- Load Balancing: Supports equal-cost multipath routing.
- Authentication: Supports MD5 and SHA for security.
- VLSM Support: Enables efficient IP address utilization.