The OSI Seven Layer Model |
index |
| OSI Layer Number | OSI Layer Name | Example Protocols | Example Specification | Example Device | ||
|---|---|---|---|---|---|---|
| Host layers | 7 | Application | HTTP, FTP, SMTP | http://www.mindflip.com/ | Server | |
| 6 | Presentation | ZIP, GIF, JPEG | index.html | |||
| 5 | Session | Sockets | ||||
| 4 | Transport | TCP, SPX | port 80 | Firewall, ACL | ||
| Network layers | 3 | Network | IP, IPX | 172.16.25.33 | Router | |
| 2 | Data Link | LLC | ARP, RARP | Switch, Bridge, Hub | ||
| MAC | MAC Addressing | 010001037cb303 | ||||
| 1 | Physical | Interface addressing | FastEthernet 1/0 | Cable, Interface | ||