The Transport layer at the bottom of the “stack” provides data transfer between the different systems. It is responsible for complete and reliable data transfer across different network segments and deals with lost data packets and other network errors. Some EAI vendors provide their own transport protocols (e.g., TIBCO RendezVous), whereas other integration technologies leverage TCP/IP protocols (e.g., SOAP). Translation between different transport layers can be provided by the Channel Adapter (127) pattern.

