| | | |
|---|---|---|
|**Layer**|**Typical Use**|**Protocols**|
|**Application**|End User Layer|HTTP, FTP, SSH, DNS|
|**Presentation**|Syntax Layer|SSL, SSH, IMAP, MPEG, JPEG|
|**Session**|Sync & Send Layer|APIs, Sockets|
|**Transport**|End-to-end Connections|TCP, UDP|
|**Network**|Packets|IP, ICMP, IPSec, IGMP|
|**Data Link**|Frames|Ethernet, PPP, Switch|
|**Physical**|Physical Structure|Fiber, Access Points, Copper Cabling|