reference bandwidth
Single-Area OSPF vs. Multi-Area OSPF
Open Shortest Path First (OSPF) is a link-state routing protocol widely used in enterprise IP networks for its efficiency and scalability. Unlike distance-vector protocols like RIP, OSPF uses a hierarchical design, segmenting networks into areas to optimize routing. Each area consists of routers sharing identical Link-State Databases (LSDBs), containing topology information. For CCNA and CCNP...
Link-State Routing Protocols Explained: Discovery, Flooding, and the SPF Tree
Link-state routing protocols are also known as shortest-path-first protocols. Every router running one maintains a complete picture of the entire network topology, built by having each router originate information about itself, its directly connected links, and the state of those links — then flooding that information to every other router in the area. OSPF is...