Network protocol

Index page for network protocols and protocol layers, categorised by the nearest matching layers of the OSI [seven-layer model]?.

This is a stub page.

Systems engineering principles have been applied to design network protocols.

Layer 1 protocols

• ISDN
• PDH?
• RS-232
• SDH?

Layer 2 protocols

• Ethernet
• HDLC?
• [Point-to-point protocol]?
• Token Ring

Layer 2/3/2+3 protocols

• Asynchronous Transfer Mode
• [Frame relay]?
• [Multi-protocol Label Switching]?
• X.25?

Layer 3 protocols

• DECnet?
• Internet protocol
  • [Border Gateway Protocol]?
  • [Internet Control Message Protocol]?
  • Transmission Control Protocol
• SNA?

Layer 4+ protocols

• ASN.1?
• HTTP
• SMTP
• POP3
• IMAP