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Another reason I dislike OSI is that both the model and the security are flawed. like
technology than seven layers, and two layers (session and presentation) approx.
Empty, the other two (data connection and network) are high.
The OSI model, with its associated service definitions and protocols, is quite complex. When stacked, printed standards cover a significant area of one meter paper. are difficult too
No implementation and no operational performance. In this context, a riddle is mentioned by Paul Mogabatris (Rose,
I thought in 1993):
Q1: What do you get when you exceed the crowd with international standards?
A1: Someone is giving you something you don’t understand.
In addition to not understanding, another problem with OSI is that some functions, such as providing feedback,
Flow control and error control will reappear in each layer. Saltser et al.
(1984), for example
To be effective, error control must be done at the top layer, repeated
Each lower layer is often redundant and inefficient.
Given the enormous complexity of models and protocols, the former is not surprising.
Execution is huge, unstable and slow. Whoever tried it got burnt. didn’t take long
People refer to “OSI” as “poor quality”. Although the material has improved over time, the picture
In contrast, Berkeley, one of the first TCP/IP processes, was part of Unix and was very good (no
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