The president of company A decides that company A should work with company B to develop a new product. The president tells her legal department to look into the idea, and they in turn ask the engineering department for help. As a result, the chief engineer calls his counterpart at the other company to discuss the technical aspects of the project. The engineers then report back to their respective legal departments, which then confer by telephone to arrange the legal aspects. Finally, the two corporate presidents talk over the telephone to discuss the financial aspects of the deal. Is this an example of a multilayer protocol in the sense of the OSI reference model? Please explain.
In this case the layered organization of companies is as follows:
Financial Department - FD(Corporate President)
Legal Department - LD
Engineering Department - ED (Chief Engineer)
This can be considered as an example of a multilayer protocol in the sense of the OSI reference model. Like in OSI reference model,
- on either side direct communication happens only between adjacent layers, that is, president and engineering department do not talk to each other directly as they are not layered adjacent in this hierarchy, and
- respective layers on two sides talk to only their peers and none else, that is, president of company A does not talk to legal or engineering department of company B, similarly legal department of company A does not talk to president or engineering department of company B, and chief engineer of company A does not talk to president or legal department of company B, and vice versa.
The entire sequence of events since the president of company A decides that company A should work with company B to develop a new product till ...
Solution gives quite detailed explanation in layman terms. It considers a (logical) connection establishment between two peers the moment they are aware of each other and the underlying requirement, and not the calling each other.