List of the protocols used in OSI layers

 

The OSI model defines seven layers, and each layer uses specific protocols to perform its functions. Here are the key protocols associated with each layer

Summary Table:

Layer	Protocols
Physical	Ethernet, USB, Bluetooth, DSL, Wi-Fi
Data Link	Ethernet, PPP, HDLC, MAC, VLAN
Network	IP, ICMP, ARP, RIP, OSPF, BGP
Transport	TCP, UDP, SCTP, TLS/SSL
Session	NetBIOS, RPC, PPTP, SIP
Presentation	SSL/TLS, JPEG, MPEG, ASCII, Unicode
Application	HTTP/HTTPS, FTP, SMTP, DNS, SNMP, DHCP, Telnet, SSH

Each protocol plays a specific role in enabling communication across networks, ensuring data is transmitted reliably and efficiently.