In the OSPF process, what does adjacency mean?

In the OSPF process, what does adjacency mean?

• A. Two routers sharing the same subnet
• B. Routers agreeing on routing metrics
• C. Establishing a communication link between routers
• D. Router configurations matching

Answer: (C)

Adjacency in the OSPF (Open Shortest Path First) process refers specifically to the establishment of a communication link between routers. For OSPF to function effectively, routers must establish neighbor adjacencies. This process involves exchanging OSPF Hello packets, which help routers identify and maintain relationships with neighbors. Once adjacency is formed, routers can share routing information, allowing them to create a synchronized OSPF link-state database. This database is crucial as it forms the basis for the OSPF routing table and ensures that each router has an accurate map of the network. While sharing the same subnet, agreeing on metrics, and matching configurations are all important for network communication and protocol operation, they do not explicitly define what adjacency means in the context of OSPF. Therefore, establishing a communication link is the most accurate representation of what adjacency entails within OSPF.

Adjacency in the OSPF (Open Shortest Path First) process refers specifically to the establishment of a communication link between routers. For OSPF to function effectively, routers must establish neighbor adjacencies. This process involves exchanging OSPF Hello packets, which help routers identify and maintain relationships with neighbors. Once adjacency is formed, routers can share routing information, allowing them to create a synchronized OSPF link-state database. This database is crucial as it forms the basis for the OSPF routing table and ensures that each router has an accurate map of the network.

While sharing the same subnet, agreeing on metrics, and matching configurations are all important for network communication and protocol operation, they do not explicitly define what adjacency means in the context of OSPF. Therefore, establishing a communication link is the most accurate representation of what adjacency entails within OSPF.