Session establishment for TCP affects how you set up firewall rules and configure the firewall navigation initialization parameters in IBM® Connect:Direct®.
TCP Session Establishment
An IBM Connect:Direct TCP client contacts an IBM Connect:Direct TCP server on its listening port. The IBM Connect:Direct client scans the list of ports (specified using the tcp.src.ports initialization parameter) and looks for a port to bind to. The number of times IBM Connect:Direct scans the list is specified using the tcp.src.ports.list.iterations initialization parameter. If IBM Connect:Direct finds an available port, communication with the remote node proceeds.