List of network protocols (OSI model)
By Contributors to Wikimedia projects
Published: 2004-12-14 · Archived: 2026-04-05 13:13:44 UTC
From Wikipedia, the free encyclopedia
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model. This list
is not exclusive to only the OSI protocol family. Many of these protocols are originally based on the Internet
Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
Telephone network modems
IrDA physical layer
USB physical layer
EIA RS-232, EIA-422, EIA-423, RS-449, RS-485
Ethernet physical layer 10BASE-T, 10BASE2, 10BASE5, 100BASE-TX, 100BASE-FX, 1000BASE-T,
1000BASE-SX and other varieties
Varieties of 802.11 Wi-Fi physical layers
DSL
ISDN
T1 and other T-carrier links, and E1 and other E-carrier links
ITU Recommendations: see ITU-T
IEEE 1394 interfaces
TransferJet
Etherloop
ARINC 818 Avionics Digital Video Bus
G.hn/G.9960 physical layer
CAN bus (controller area network) physical layer
Mobile Industry Processor Interface physical layer
Frame Relay
FO Fiber optics
X.25
ARCnet Attached Resource Computer NETwork
ARP Address Resolution Protocol
ATM Asynchronous Transfer Mode
CHAP Challenge Handshake Authentication Protocol
CDP Cisco Discovery Protocol
DCAP Data Link Switching Client Access Protocol
Distributed Multi-Link Trunking
Distributed Split Multi-Link Trunking
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DTP Dynamic Trunking Protocol
Econet
Ethernet
FDDI Fiber Distributed Data Interface
Frame Relay
ITU-T G.hn
HDLC High-Level Data Link Control
IEEE 802.11 WiFi
IEEE 802.15.4 Low-rate wireless personal area network
IEEE 802.16 WiMAX
LACP Link Aggregation Control Protocol
LattisNet
LocalTalk
L2F Layer 2 Forwarding Protocol
L2TP Layer 2 Tunneling Protocol
LLDP Link Layer Discovery Protocol
LLDP-MED Link Layer Discovery Protocol - Media Endpoint Discovery
MAC Media Access Control
Q.710 Simplified Message Transfer Part
Multi-link trunking Protocol
NDP Neighbor Discovery Protocol
PAgP - Cisco Systems proprietary link aggregation protocol
PPP Point-to-Point Protocol
PPTP Point-to-Point Tunneling Protocol
PAP Password Authentication Protocol
RPR IEEE 802.17 Resilient Packet Ring
SLIP Serial Line Internet Protocol (obsolete)
StarLAN
Space Data Link Protocol, one of the norms for Space Data Link from the Consultative Committee for
Space Data Systems
STP Spanning Tree Protocol
Split multi-link trunking Protocol
Token Ring a protocol developed by IBM; the name can also be used to describe the token passing ring
logical topology that it popularized.
Virtual Extended Network (VEN) a protocol developed by iQuila.
VTP VLAN Trunking Protocol
VLAN Virtual Local Area Network
Asynchronous Transfer Mode (ATM)
IS-IS, Intermediate System - Intermediate System (OSI)
SPB Shortest Path Bridging
MTP Message Transfer Part
NSP Network Service Part
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TRILL (TRansparent Interconnection of Lots of Links)
ARP Address Resolution Protocol
MPLS Multiprotocol Label Switching
PPPoE Point-to-Point Protocol over Ethernet
TIPC Transparent Inter-process Communication
CLNP Connectionless Networking Protocol
IPX Internetwork Packet Exchange
NAT Network Address Translation
Routed-SMLT
SCCP Signalling Connection Control Part
AppleTalk DDP
GLBP Gateway Load Balancing Protocol (a Cisco proprietary protocol)
HSRP Hot Standby Router protocol
VRRP Virtual Router Redundancy Protocol
IP Internet Protocol
ICMP Internet Control Message Protocol
ARP Address Resolution Protocol
RIP Routing Information Protocol (v1 and v2)
OSPF Open Shortest Path First (v1 and v2)
IPSEC IPsec
WireGuard WireGuard
Layer 3+4 (Protocol Suites)
[edit]
AppleTalk
DECnet
IPX/SPX
Internet Protocol Suite
OSI protocols
Xerox Network Systems
AEP AppleTalk Echo Protocol
AH Authentication Header over IP or IPSec
DCCP Datagram Congestion Control Protocol
ESP Encapsulating Security Payload over IP or IPSec
FCP Fibre Channel Protocol
IL Originally developed as transport layer for 9P
iSCSI Internet Small Computer System Interface
NetBIOS NetBIOS, File Sharing and Name Resolution
NBF NetBIOS Frames protocol
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NBP Name Binding Protocol {for AppleTalk}
QUIC
SCTP Stream Control Transmission Protocol
Sinec H1 for telecontrol
TUP, Telephone User Part
SPX Sequenced Packet Exchange
TCP Transmission Control Protocol
UDP User Datagram Protocol
VXLAN Virtual eXtensible LAN
RDP Reliable Data Protocol {A protocol stack covers Layer 4 - Layer 7}[2]
This layer, presentation Layer and application layer are combined in TCP/IP model.
9P Distributed file system protocol developed originally as part of Plan 9
ADSP AppleTalk Data Stream Protocol
ASP AppleTalk Session Protocol
H.245 Call Control Protocol for Multimedia Communications
iSNS — Internet Storage Name Service
NetBIOS, File Sharing and Name Resolution protocol - the basis of file sharing with Windows.
NetBEUI, NetBIOS Enhanced User Interface
NCP NetWare Core Protocol
PAP Printer Access Protocol
RPC Remote Procedure Call
RTCP RTP Control Protocol
SDP Session Direct Protocol
SMB Server Message Block
SMPP Short Message Peer-to-Peer
SOCKS "SOCKetS"
ZIP Zone Information Protocol {For AppleTalk}
This layer provides session management capabilities between hosts. For example, if some host needs a
password verification for access and if credentials are provided then for that session password verification
does not happen again. This layer can assist in synchronization, dialog control and critical operation
management (e.g., an online bank transaction).
TLS Transport Layer Security[citation needed]
SSL Secure Socket Tunneling[citation needed]
AFP Apple Filing Protocol[citation needed]
Independent Computing Architecture (ICA), the Citrix system core protocol
Lightweight Presentation Protocol (LPP)[citation needed]
NetWare Core Protocol (NCP)
Network Data Representation (NDR)[citation needed]
Tox, The Tox protocol is sometimes regarded as part of both the presentation and application layer
eXternal Data Representation (XDR)[citation needed]
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X.25 Packet Assembler/Disassembler Protocol (PAD)
SOAP, Simple Object Access Protocol
Simple Service Discovery Protocol, A discovery protocol employed by UPnP
TCAP, Transaction Capabilities Application Part
Universal Plug and Play
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
BOOTP Bootstrap Protocol
HTTP Hyper Text Transfer Protocol
HTTPS
WebSocket
NFS
POP3 Post Office Protocol
RTSP Real Time Streaming Protocol
SMTP
SNMP
FTP
NTP
IRC
Telnet Tele Communication Protocol
SSH
IMAP
Gemini
Controller Area Network
Protocol description languages
[edit]
Abstract Syntax Notation One (ASN.1)
List of automation protocols
Systems Network Architecture (SNA) developed by IBM
Distributed System Security Architecture (DSSA)
OSI model
1. ^ "X.225 : Information technology – Open Systems Interconnection – Connection-oriented Session
protocol: Protocol specification". Archived from the original on 1 February 2021. Retrieved 10 March
2023.
2. ^ Reliable Data Protocol - https://www.rfc-editor.org/rfc/rfc908.html
Network Protocols Handbook. Javvin Technologies. 2005. ISBN 978-0-9740945-2-6.
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Protocol Encapsulation Chart - A PDF file illustrating the relationship between common protocols and the
OSI Reference Model.
Network Protocols Acronyms and Abbreviations - list of network protocols with abbreviations order by
index.
Source: http://en.wikipedia.org/wiki/List_of_network_protocols_%28OSI_model%29
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