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Web services protocol stack

Sapna Grover
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Joined: Sep 27, 2002
Posts: 54
I read a paper that states that the protocol stack for web services includes network layer and then rest of the layers like XML messaging layer and Service Description etc are built on top of it.
It further states that any number of protocols like HTTP, SMTP etc can be used for network layer.
If we look at the standard protocol layering then these protocols HTTP/ SMTP etc belong to the application layer and not to network layer.
The internet protocols are usually stacked in five layers
Application- e.g. HTTP, SMTP etc
Transport- e.g. TCP, UDP
Network- e.g. IP
Data Link Layer- e.g. Ethernet
Physical
At some other places in the paper they have used transport layer as to refer to the layer below XML messaging layer ? Am I missing something ?
William Brogden
Author and all-around good cowpoke
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Joined: Mar 22, 2000
Posts: 12806
    
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I suspect that the paper was using network layer in a different sense. Probably they were trying to communicate the fact that SOAP messages can be moved in a variety of ways.
Bill
 
 
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