slide 16 of 37

UDP Sockets

• Berkeley Sockets, UDP protocol (SOCK_DGRAM)
• UDP is Unreliable Datagram Protocol
  • Read/write a block at a time
  • An entire block (but not a part) can be lost
  • A block can arrive multiple times
  • Blocks can arrive out-of-order
• "Connectionless" protocol
• Generally fastest socket protocol