24
The ABCs of
TCP/IP
Data Flow
The design of an ISO Reference Model compatible network is such that a series
of headers are opened to each data unit as packets are transmitted and delivered
by frames. At the receiver, the headers are removed as a data unit flows up
the protocol suite, until the “headerless” data unit is identical to the transmitted
data unit. The next chapter section examines the flow of data in a TCP/IP
network that follows the previously described ISO Reference Model data flow.
The ISO Reference Model never lived up to its intended goal, with ISO
protocols achieving a less-than-anticipated level of utilization. The concept of
the model made people aware of the benefits that could be obtained by a
layered open architecture as well ...