First Hop Redundancy

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Unit: 7 Lesson: 4

having a single gate to your gated neighborhood is bad because what if they just lock you in one day

In a full or partial mesh network topology, alternate routes can be found to bypass failed routers or faulty connections. However, end systems are typically configured with a single router that acts as their default gateway. While it's technically possible to configure hosts with multiple default gateways, it's not feasible in practice.

This is why we have First-Hop-Redundancy-Protocols. To learn more, view the page on FHRPs.

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