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User Datagram Protocol (UDP)

User Datagram Protocol (UDP). IP headers cannot identify application programs running a computer UDP is an end-to-end or transport protocol that allows an application program to serve as the end-point of communication. UDP Characteristics. End-to-end Connectionless Message-oriented

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User Datagram Protocol (UDP)

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  1. User Datagram Protocol (UDP) • IP headers cannot identify application programs running a computer • UDP is an end-to-end or transport protocol that allows an application program to serve as the end-point of communication

  2. UDP Characteristics • End-to-end • Connectionless • Message-oriented • Each UDP message must fit within one IP datagram • Best-effort • UDP message can be lost, duplicated, or corrupted • Suitable for applications that can tolerate delivery errors • Arbitrary interaction • One-to-one, one-to-many (IP multicast/broadcast), many-to-one • Operating system independent • Relies on UDP port numbers to identify application

  3. UDP Port Number

  4. UDP Encapsulation

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