In networking, the Session Layer, the fifth layer in the OSI model, is a crucial element in facilitating active communication sessions between users on different machines. It is pivotal in establishing, maintaining, synchronizing, and terminating sessions between end-user applications. Key Functions of Session Layer: Dialog Control: Enables systems to communicate in either half-duplex or full-duplex mode. Token Management: Prevents simultaneous access or attempts of critical operations by different users. Synchronization: Adds checkpoints to data streams, ensuring proper resynchronization and avoiding initial message cuts. Checkpointing and Recovery: Manages session checkpointing and recovery processes. Session Management: Provides mechanisms for opening, closing, and managing sessions between end-user application processes. Remote Procedure Calls (RPCs): Implementation of services in application environments using RPCs. Connection Control: Mana...
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