Question

Compare and contrast Distance-Vector and Link-State routing algorithms. Your answer should cover:

a) The information shared between routers (Routing table vs. Topology map).

b) The frequency and scope of updates.

c) Susceptibility to common problems like the "Count-to-Infinity" problem and slow convergence.

d) Provide one example protocol for each algorithm (e.g., RIP, OSPF).

13 Sep 2025
Answer :
Word Count : 599
Distance-Vector and Link-State routing algorithms are two fundamental approaches to dynamic routing in computer networks, each employing different mechanisms for sharing information, updating routes, and maintaining consistency across routers. Both aim to ensure efficient packet delivery, but their strategies and operational behaviors differ significantly. In Distance-Vector routing, each router shares its routing table with its immediate neighbors. The routing table typically contains information about the destination networks, the cost (often measured in hop counts or other metrics), and the next hop to reach each destination. Routers do not have a complete picture of the network topology; instead, they rely on the cumulative knowledge exchanged through neighbors. In contrast, Link-State routing algorithms distribute a topology map. Each router generates and floods Link-State Advertisements (LSAs) throughout the network, containing detailed information about its directly connected links and their costs. Every router independently constructs a complete network topology graph using these LSAs ______ ________ _____ ___ __________.
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