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The Transport layer establishes a connection between two machines. An application can run many processes at the same time.
The OSI model has a session layer.
The communication session should be established, monitored and terminated.
The presentation and session layer is between applications and networks.
The Transport layer is used to establish a logical end to end connection between two systems. The Transport layer uses two protocols. The data is broken down by the transport layer. The implementation of process-to-process delivery is done using ports.
Transportlayer responsibilities
The process to process delivery is End-to-end.
The transport layer is used to build the connection. The elements of the transport layer are discussed later in the chapter.
Session-layer services are used in application environments. The OSI protocol suite session-layer protocol is also known as X.225.
Transport layer data is the exact data received by the receiver. All of the information in the packet is removed from the receiver by the corresponding layer.
OSI Layer 5 is the session layer. The session layer is in the OSI model. The session layer gives the mechanism for opening, closing and managing a session between application processes. Communication sessions include requests and responses.