UDP (User Datagram Protocol)

UDP datagram

  • Unreliable, connectionless
    • No three-way-handshake
    • No guaranteed delivery of data
  • Provides no error checking, sequencing, or flow control
    • More efficient than TCP
  • Useful for live audio or video
  • More efficient for carrying messages that fit within one packet
  • Header only contains four fields
    • Source port
    • Destination port
    • Length
    • Checksum
      • Optional in IPv4, required in IPv6

Networking Computer Science TCP-IP