Global communication network without the transport layer

56,510 pts.
Tags:
OSI
TCP
UDP
Is it feasible to have a global communication network without the transport later? Thanks!
ASKED: March 1, 2012  12:25 AM
UPDATED: September 11, 2013  4:03 PM

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  • TomLiotta
    Is it feasible to have a global communication network without the transport layer? First, what do you mean by "transport layer"? Without knowing the services that you include, there's no way to know an appropriate answer. TCP handles most of the services commonly thought of for a "transport layer" in the OSI network model; and although UDP leaves out many of those services, it's also considered a "transport layer" protocol. SNA, for example, doesn't exactly have a 'Transport Layer'. Many of the services generally thought to be in a 'Transport Layer' are provided over SNA through APPC and APPN. Without using APPC/APPN, a lot of underlying stuff needs to be attended to more carefully. As such, I'd guess that the answer has to be "Yes." But then, I suppose it also depends on what "communication" will be carried over the network. A TV communication network can be global without requiring a 'Transport Layer'. Shortwave radio might be a great example of a basis for a kind of "global communication network without the transport layer". So, please provide a little more description of what is needed. It's too vague to be sure. Tom
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  • transort layer (the 4th OSI layer). But the question now is can i remove the UDP protocol,there is some OSI or TCP/IP layers able to replace UDP services. Because in TCP case,there is no layers combination able to substitute the TCP services.
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  • For instance can i implement all the TCP or UDP functions in the aplication layer?
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  • TomLiotta
    ...can i implement all the TCP or UDP functions in the aplication layer? I'm not understanding the whole question. If you are creating your own communications architecture, you can implement your own services any way you choose. But what kind of "network" are you talking about? What will the physical medium be? Will existing telecommunications facilities be used? E.g., will you use any existing infrastructure at all? Would you expect a standard router for example to pass your traffic? Tom
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