Windows Networking Tools

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4

tranSPort layEr ProtocolS

e purpose of this chapter is to acquaint you with the two key trans-

port layer protocols supported by the TCP/IP suite. ose protocols

are the Transmission Control Protocol (TCP) and the User Datagram

Protocol (UDP).

As indicated in Chapter 3, when we discussed the IP protocol,

either TCP or UDP can be identified by the setting of an applicable

value in the IP header under both IPv4 and IPv6. Although the use

of either transport layer protocol results in the placement of the appro-

priate transport layer header behind the IP header, there are signifi-

cant differences between the functionality of each transport protocol.

ose differences make one protocol more suitable for certain applica-

tions than the other protocol, ...