How does the session layer handle session establishment, maintenance, and termination, and what are some common protocols or mechanisms used for these purposes?

Session establishment involves negotiating session parameters, such as session identifiers and synchronization points, between communicating entities. Session maintenance involves managing the ongoing communication session, ensuring data integrity and reliability. Session termination involves gracefully ending the session and releasing resources. Common protocols and mechanisms used for session management include NetBIOS, RPC (Remote Procedure Call), and SIP (Session Initiation Protocol).