What Redundant Network Paths Mean in Practice
What Redundant Network Paths Mean in Practice
A second connection can preserve service during a failure if it avoids the same points of risk.
Two links on separate switches offer little protection when both depend on one power source or run through the same conduit. Path diversity includes the physical route and upstream dependencies.
Software has to detect a failed path and move traffic without introducing loops or black holes. During the transition, some flows may see loss or increased latency.
Exercise failover while representative traffic is running. Verify both the move to the alternate path and the return to normal so a later maintenance window has predictable behavior.
