Monday, January 3, 2011

TCP and UDP


Reliable vs. Best-Effort Comparison
 


UDP Characteristic
  • Operates at Transport Layer of OSI and TCP/IP model
  • Provides applications with access to the network layer without the overhead of reliability mechanisms
  • Is a connectionless protocol
  • Provides limited error checking
  • Provides best-effort delivery
  • Has no data-recovery features

TCP Characteristic
  • Transport layer of the TCP/IP stack
  •  Access to the network layer for applications
  • Connection-oriented protocol
  • Error Correction
  • Sequencing of data packets
  • Acknowledgement of receipt
  • Data-recovery features

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