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:
• What's the Difference Between a Packet and a Frame?
• IPv4 to IPv6 Transition With the Dual-Stack Technique
• SYN-ACK Handshake to Establish a TCP Connection
• TCP/IP Protocol Suite
• What Are Private IP Addresses?
• Comparison of the Layers of the OSI and TCP/IP Models
• X.25 and Frame Relay Overview
• IPv6 Anycast Addresses
• IEEE 802.11 Wireless Modulation Methods
• The OSI Network Layer

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