Sybase Replication Agent uses the Java Database Connectivity (JDBC) protocol for all its communications.
Replication Agent uses a single instance of the Sybase JDBC driver (jConnect for JDBC) to manage all of its connections to Open Client/Server applications, including the primary Replication Server and its RSSD.
In the case of the primary database server, Sybase Replication Agent connects to the JDBC driver for the primary database.
While replicating transactions, Replication Agent maintains connections with both the primary database and the primary Replication Server. In addition, Replication Agent occasionally connects to the RSSD of the primary Replication Server to retrieve replication definition data.