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CCNP Routing and Switching ROUTE 300-101 Official Cert Guide, Video Enhanced Edition by Kevin Wallace

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TCP Characteristics

ImageLesson 7: TCP Operation

TCP is commonly touted as being a reliable transport mechanism, as compared to its unreliable counterpart, UDP. Examination of the TCP segment header format, as shown in Figure 1-25, provides valuable insight into how this reliability happens.

Image

Figure 1-25 TCP Segment Header Format

The purposes of the fields found in a TCP segment header are as follows:

Image Source Port field: The Source Port field is a 16-bit ...

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