What is a Peer to Peer Replication ?
Peer-to-peer replication is a special type of Transactional replication extension that provides a scale-out and high-availability solution by maintaining copies of data across multiple server instances. Peer-to-peer replication propagates transactionally consistent changes in near real-time. To avoid potential data inconsistency, make sure that you avoid conflicts in a peer-to-peer topology, even with conflict detection enabled.