Summary Comparison of TCP/IP Transport Layer Protocols (UDP and TCP)
The User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) are the siblings of the transport layer in the TCP/IP protocol suite. They perform the same role, providing an interface between applications and the data-moving capabilities of the Internet Protocol (IP), but they do it in very different ways. The two protocols thus provide choice to higher-layer protocols, allowing each to select the appropriate one depending on its needs.
I have described UDP and TCP in detail in their own sections. However, these sections take some time to read; the UDP section is several pages and the TCP section has many more! For your convenience I have included here Table 160, which helps illustrate the most important basic attributes of both protocols and how they contrast with each other:
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Version 3.0 - Version Date: September 20, 2005
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