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[Paul Boehm <typo@soniq.net>]

On Sat, Apr 22, 2000 at 04:08:40PM +0200, Martin Puaschitz wrote:
> Der Aplication Layer ist ja einschließlich von Layer 5 bis Layer 7. Wie
> kann ich aber diese drei Layer genauer Einteilen? Es muss ja was zum
> einteilen geben sonst hätte man ja daraus einen einzigen Layer machen
> können, oder?

wie waers wenn du dir mal literatur suchst?
                                 OSI Model

   Layer Name Function
   7 Application Layer Program-to-program communication.
   6 Presentation Layer Manages data representation conversions. For
   example, the Presentation Layer would be responsible for converting
   from EBCDIC to ASCII.
   5 Session Layer Responsible for establishing and maintaining
   communications channels. In practice, this layer is often combined
   with the Transport Layer.
   4 Transport Layer Responsible for end-to-end integrity of data
   transmission.
   3 Network Layer Routes data from one node to another.
   2 Data Link Layer Responsible for physical passing data from one node
   to another.
   1 Physical Layer Manages putting data onto the network media and
   taking the data off.

Siehe auch: z.b.:
'Understanding OSI':
http://www.salford.ac.uk/iti/books/osi/osi.html

    paul