! Session Layer

Layer 5 – The Session Layer

 

     Layer 5, the session layer, provides various services, including tracking the number of bytes that each end of the session has acknowledged receiving from the other end of the session. This session layer allows applications functioning on devices to establish, manage, and terminate a dialog through a network. Session layer functionality includes:

         • Virtual connection between application entities

         • Synchronization of data flow

         • Creation of dialog units

         • Connection parameter negotiations

         • Partitioning of services into functional groups

         • Acknowledgements of data received during a session

         • Retransmission of data if it is not received by a device

ref: www.globalknowledge.com