The OSI Session Layer

By Stephen Bucaro

The Session layer, layer seven of the OSI model, establishes, synchronizes, maintains and terminates sessions between computers on a network. It establishes a connection ID and authenticates security.

When you think of the Session layer, keep in mind that the OSI is only a model. Actual network protocol suites, such as TCP/IP handle the conection establishment, maintainance, and termination with protocols at the Transport layer.

More Networking Protocols and Standards:
• The OSI Presentation Layer
• PoE (Power Over Ethernet)
• Session Border Controllers - More Than Just a Voice Firewall
• IPv6 Global Unicast Addresses
• A Simple Description of the IPv6 Header and Datagram
• Representation of IPv6 Addresses
• Major Protocols in the TCP/IP Suite
• T-Carrier
• The OSI Application Layer
• Network Operating Systems

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