Differentiate between Transport and Session layers of OSI model.
OSI Model Transport Layer
The transport layer utilizes the services provided through the network layer, as best path selection and logical addressing, to give end-to-end communication in between source and destination.
- The transport -layer data stream is a logical connection in between the endpoints of a network.
- End-to-end control is given by sliding windows and reliability into sequencing numbers and acknowledgments.
- The transport layer regulates information flow to make sure end-to-end connectivity in between host applications accurately and reliably.
- The TCP/ IP protocol of Layer 4 that is transport layer has two protocols. They are UDP and TCP.
The transport layer admits data from the session layer and also segments the data for transport across the network. Usually, the transport layer is responsible for ensuring that the data is delivered error-free and in the appropriate sequence. Flow control usually occurs at the transport layer.
OSI Model Session Layer
The session layer manages, establishes and terminates communication sessions.
Communication sessions contain service of requests and service responses which occur between applications located into various network devices. These requests and responses are coordinated through protocols implemented on the session layer. The session layer manages, firstly establishes and terminates sessions in between applications
- Functions of the session layer and the various processes which occur as data packets travel by this layer. More purposely, you learned that
- Communication sessions contain mini-conversations which occur in between applications located in various network devices
- Requests and responses are coordinated through protocols implemented at the session layer
- The session layer decides whether to utilize two-way simultaneous communication or two-way vary communication through using dialogue control
- The session layer utilizes dialogue separation to initiate, terminate and manage communication into an orderly fashion.