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The TCP/IP Protocol Suite |
192.22.31.05 |
0xC0161f05 |
At the IP protocol layer, host computers cannot be referenced by name. Refer to Domain Name System (DNS) for an explanation of name referencing for host computers. All network communication uses IP addresses. The IP layer routes packets of data to their destinations, which may be many physical hops away from the source of the message. A physical hop is a gateway through which the data must pass. The IP layer does not guarantee that a packet will reach its destination, nor does it provide error checking for the data. The IP layer does not provide flow control or any lasting association (connection) between sender and receiver. A higher layer of the protocol, such as the User Datagram Protocol (UDP) or TCP, must provide all these services.
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