Use multiple replication paths to increase replication throughput and performance, and reduce contention.
Multi-Path Replication™ supports the replication of data through different streams, while still maintaining data consistency within a path, but not adhering to the commit order across different paths.
A replication path encompasses all the components and modules between the Replication Server and the primary or replicate database. In multipath replication, you can create multiple primary replication paths for multiple Replication Agent connections from a primary database to one or more Replication Servers, and multiple replicate paths from one or more Replication Servers to the replicate database. You can configure multi-path replication in warm standby and multisite availability (MSA) environments. You can convey transactions over dedicated routes between Replication Servers to avoid congestion on shared routes, and you can dedicate an end-to-end replication path from the primary database through Replication Servers to the replicate database, to objects such as tables and stored procedures.
See Replication Server Administration Guide Volume 2 > Performance Tuning > Multi-Path Replication.
Multi-Path Replication is licensed as part of the Advanced Services Option. See Replication Server Installation Guide > Planning Your Installation > Obtaining a License.