Episode 51 — Link Aggregation: capacity, redundancy, and failure behavior

Link aggregation shows up in CloudNetX scenarios because it is one of the simplest ways to increase uplink capacity while also improving resilience, but it behaves differently than many people assume. This episode defines link aggregation as bundling multiple physical links into one logical connection, then explains how traffic distribution is typically based on a hashing decision that keeps a given flow on a consistent member link. That detail matters because aggregation increases total capacity across many flows, but it may not increase throughput for a single flow beyond the speed of one physical link. The episode also frames aggregation as a design choice that influences failure behavior, because losing one member link reduces capacity and can shift hashes, but it should not eliminate connectivity if the bundle is healthy and configured correctly.