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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