Khác biệt giữa các bản “Thành viên:Nhiêu Lộc/Sandbox”

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• Less Complex: Compared to not using a model, network models break the concepts into smaller parts.<p>
Same-layer interaction on different computers<p>
• Standard Interfaces: The standard interface definitions between each layer allow for multiple vendors to create products that complete to be used for a given function, along with all the benefits of open competition.<p>
The two computers use a protocol to communicate with the same layer on another computer. The protocol defined by each layer uses the header that is transmitted between the computers, to communicate what each computer wants to do.<p>
• Easier to learn: Humans can more easily discuss and learn about the many details of a protocol speccification.<p>
Adjacent-layer interaction on the same computer<p>
• Easier to develop: Reduced complexity allows easier program changes and faster product development.<p>
On a single computer, one layer provides a service to a higher layer. The software or hardware that implements the higher layer request that the next lower layer perform the needed function.
• Multivendor interoperability: Creating products to meet the same networking standards means that computers and networking gear from multiple vendors can work in the same network.<p>
• Modular engineering: One vendor can write software that implements higher layers – for example, a web browser – and another vendor can write software that implements the lower layers – for example, Microsoft’s built-in TCP/IP software in its operating systems.