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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