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:
• IPv4 Address Classes
• Unicast, Multicast, Broadcast. What Does It Mean?
• Wireless Network Standards - 80211a, 80211b, 80211g, 80211n, 80216
• Internet Security and VPN Network Design
• The OSI Data Link Layer
• Routing Datagrams
• Neighbor Discovery Protocol (NDP)
• Routing Information Protocol (RIP), Open Shortest Path First (OSPF), and Routing Convergence
• RIP (Routing Information Protocol)
• IPv6 Multicast Addresses

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