Quiz Entry - updated: 2026.07.14
What is dynamic routing and how does it differ from static routing?
Dynamic routing uses protocols (OSPF, EIGRP, etc.) to automatically discover networks, keep the table current, and pick best paths — adapting to topology changes without the manual updates static routing needs.
Dynamic Routing: Routes automatically learned through routing protocols.
Dynamic routes automatically:
| Feature | Benefit |
|---|---|
| Discover remote networks | Learns about networks from neighboring routers |
| Maintain up-to-date information | Updates routing table as topology changes |
| Choose best path | Selects optimal route based on metrics |
| Find new paths | Adapts when topology changes occur |
Common dynamic routing protocols:
- OSPF (Open Shortest Path First)
- EIGRP (Enhanced Interior Gateway Routing Protocol)
- RIP (Routing Information Protocol)
- BGP (Border Gateway Protocol)
Key advantage over static:
Dynamic routing protocols automatically adjust when a network topology change occurs, finding new best paths without administrator intervention.
Can also: Share static default routes with other routers dynamically.
Go deeper:
IP Routing Explained (NetworkDirection) — how routers learn and select paths automatically.
Wikipedia — Dynamic routing — distance-vector vs link-state and the major protocols (RIP, OSPF, EIGRP, BGP).