Protocol Table
Many network protocols do not strictly belong to a single OSI layer. Some protocols span multiple layers because they handle different aspects of communication, such as addressing, security, or data transport.
| OSI Layer | Protocols |
|---|---|
| 1. Physical Layer | Ethernet, Wi-Fi, Bluetooth, USB, Fiber Optic, DSL, LTE, 5G, NFC, Infrared |
| 2. Date Link Layer | PPP, HDLC, MAC, SCTP, ATM, Frame Relay, MPLS, Bluetooth, ARP, LACP, LLDP, PAgP, STP, VTP, LLDP-MED, CDP, DTP, VLAN, RTP, UDP, TCP, DCCP, QUIC |
| 3. Network Layer | IP, IPv4, IPv6, ARP, ICMP, IGMP, NAT, IPSec, MPLS, Routing Protocols (RIP, OSPF, BGP, EIGRP, IS-IS), L3VPN, SLIP, PPP, Ethernet, 6LoWPAN, RARP, L2TP, GRE, HDLC |
| 4. Transport Layer | TCP, UDP, SCTP, DCCP, RUDP, FCP, iSCSI, AEP, QUIC, MPTCP, SPX, TCP/UDP over IP |
| 5. Session Layer | RPC, NetBIOS, SMB, NFS, FTP, Telnet, SSL/TLS, H.323, XMPP, SIP, MAPI, RDP, L2TP, BEEP |
| 6. Presentation Layer | SSL, TLS, ASCII, EBCDIC, JPEG, GIF, MPEG, TLS Record Protocol, Base64, X.509, JPEG2000, XML, JSON |
| 7. Application Layer | HTTP, HTTPS, FTP, FTPS, SFTP, TFTP, SCP, FASP, AS2, IRC, XMPP, Signal Protocol, Matrix, Briar, DNS, DHCP, SNMP, SMTP, POP3, IMAP, Telnet, SSH, RDP, SIP, H.323, MQTT, CoAP, WebSocket, REST, SOAP, BitTorrent |