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:
• Understanding IP Routing
• VTP (VLAN Trunking Protocol)
• Comparing IPv4 and IPv6 at a Glance
• The OSI Network Layer
• Video Streaming Protocols
• IP Addressing and Subnetting
• X.25 and Frame Relay Overview
• The OSI Application Layer
• Wireless Standards - 802.11a 802.11b 802.11g 802.11n 802.11i Explained
• SYN-ACK Handshake to Establish a TCP Connection

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