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:
• T-Carrier - A Complete and Comprehensive Guide
• IEEE 802 Standards Specify the Basics of Physical and Logical Networking
• RADIUS Protocol
• WAN Network Protocols - DSL, SONET, HDLC, DWDM, DLSW+
• The OSI Physical Layer
• TCP/IP Features
• An Introduction to the Types of VPNs
• Comparison of the Layers of the OSI and TCP/IP Models
• Virtual Local Area Networks (VLANs)
• Link Aggregation

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