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and comparing the models

2007-02-25 01:17:23 · 2 answers · asked by mary 1 in Computers & Internet Computer Networking

2 answers

http://homepages.uel.ac.uk/u9703493/comparison.htm

http://www.et.put.poznan.pl/tcpip/architecture/archi_layers.htm

there is some of the basics at those sites...hope they help you or at least get you in the right direction

2007-02-25 01:23:05 · answer #1 · answered by the PimP cHiMp 2 · 0 0

Before asking a question you should use the search option on this page. I found this answer by doing that exact thing.

The main similarities between the two models include the following:

They share similar architecture. - Both of the models share a similar architecture. This can be illustrated by the fact that both of them are constructed with layers.

They share a common application layer.- Both of the models share a common "application layer". However in practice this layer includes different services depending upon each model.

Both models have comparable transport and network layers.- This can be illustrated by the fact that whatever functions are performed between the presentation and network layer of the OSI model similar functions are performed at the Transport layer of the TCP/IP model.

Knowledge of both models is required by networking professionals.- According to article obtained from the internet networking professionals "need to know both models". (Source:

Both models assume that packets are switched.- Basically this means that individual packets may take differing paths in order to reach the same destination.




DIFFERENCES



The main differences between the two models are as follows:

TCP/IP Protocols are considered to be standards around which the internet has developed. The OSI model however is a "generic, protocol- independent standard." (www.netfact.com/crs)

TCP/IP combines the presentation and session layer issues into its application layer.

TCP/IP combines the OSI data link and physical layers into the network access layer.

TCP/IP appears to be a more simpler model and this is mainly due to the fact that it has fewer layers.

TCP/IP is considered to be a more credible model- This is mainly due to the fact because TCP/IP protocols are the standards around which the internet was developed therefore it mainly gains creditability due to this reason. Where as in contrast networks are not usually built around the OSI model as it is merely used as a guidance tool.

The OSI model consists of 7 architectural layers whereas the TCP/IP only has 4 layers

2007-02-25 09:53:29 · answer #2 · answered by ladeehwk 5 · 0 0

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