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OSI Layers
Vincent: Small Office Class
| OSI Layer | Function | Layer Number |
|---|---|---|
| Application | Provides interface between software applications and network for interpreting applications' requests and requirements. | 7 |
| Presentation | Allows hosts and applications to use a common language; performs data formatting, encryption, and compression. | 6 |
| Session | Establishes, maintains, and terminates user connections. | 5 |
| Transport | Ensures accurate delivery of data through flow control, segmentation and reassembly, error correction, and acknowledgment. | 4 |
| Network | Establishes network connections; translates network addresses into their physical counterparts and determines routing. (IP addresses function at this layer.) | 3 |
| Data Link | Packages data into frames appropriate to network transmission method. (MAC addresses function at this layer.) | 2 |
| Physical | Manages signaling to and from physical network connections. | 1 |