What is the purpose of redundancy in Link 16 networks?

• A. To maintain operation if a node or link fails, by providing alternate paths or backup control.
• B. To increase data rate.
• C. To reduce power consumption.
• D. To allow unlimited nodes.

Answer: (A)

Redundancy in Link 16 is about network survivability—keeping communications alive when parts of the system fail. In practice, the network supports multiple paths and backup links so messages can still get through if a node goes down, a link is degraded, or interference blocks a path. This design lets traffic be automatically rerouted through alternate routes, preserving command and control, coordination, and shared situational awareness even in contested or damaged environments. The core purpose is to maintain operation under failure, not to increase data rate, reduce power, or grow the number of nodes beyond what the system can reasonably support. While those factors can be affected indirectly, redundancy’s primary goal is resilience and continuity of operation when parts of the network are compromised.