The OSI Presentation Layer
By Stephen Bucaro
At the presentaion layer, layer six of the OSI model,source and destination applications
communicate on a format for exchanging data. The sending computer may convert text to a
generic format ( ASCII) for transmission over a network. The receiveing computer converts
the ASCII to the format required by the destination application.
Data Transformation Services Provided by the Presentation Layer
• Text format conversions
• Binary and graphics format conversions
• Compression and expansion
• Encryption and decryption
When you think of the Application layer, keep in mind that the OSI is only a model. Actual network
operating systems may handle the data conversion functions at the application and session layers.
More Networking Protocols and Standards:
• TCP Windowing
• Video - Transport Layer (Layer 4) of OSI Networking Model
• Networking Protocols, Ports, Standards, and Organizations What Does it All Mean?
• RIP (Routing Information Protocol)
• IPv6 Global Unicast Addresses
• Networking Routing Believability and Administrative Distance
• Remote Control Protocols
• Wireless Standards - 802.11a 802.11b 802.11g 802.11n 802.11i Explained
• Routing Information Protocol (RIP), Open Shortest Path First (OSPF), and Routing Convergence
• IPv6 Anycast Addresses
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