Relier Pairs OSI LayersVersion en ligne Matching the OSI Layers par Julie Myers 1 Presentation Layer 2 Physical Layer 3 Network Layer 4 Transport Layer 5 Application Layer 6 Data Link Layer 7 Session Layer Provides services directly to user applications, Authentication and HTTP & FTP used at this layer Logical IP Address, Data routing and relaying standards, and Packet Error recovery and flow control, User Datagram Protocol (UDP), and Port Encryption, Provides data transformation to provide common interface and Compression Bitstream, Cabling Media, and Signal Error Handling at the frame level, Frame, and the Physical Address (MAC) Establishes, manages and ends user connections, Manages interaction between end systems, and Data syncing between applications