COMPUTER NETWORKING

Detailed explanation-1: -Link-level redundancy essentially requires two links to operate in an active/active or active/backup setting so that if one link fails, the other can take over and restore traffic forwarding that had been previously sent over the failed link. Failure on any given access link should not result in a loss of connectivity.

Detailed explanation-2: -Network redundancy provides a network strategy and multiple fallback plans in case a network failure occurs to keep services up and valuable data flowing through the network. Redundant networks are synonymous with a reliable network that will greatly benefit the customers.

Detailed explanation-3: -Redundancy is an important part of network design for preventing disruption of network services by minimizing the possibility of a single point of failure. One method of implementing redundancy is by installing duplicate equipment and providing failover services for critical devices.