TCP/IP ????

[Beno]

Hi there,

I am learning about TCP/IP and just have a few questions that some of you out there might want to answer for me.........

IP contains the address of the recipent computer and transmits packets of information over the LAN or WAN by routing computers that will take it there efficiently.

TCP takes the packets and reassembles them in there sequence that they should be in.

BUT!!!!!.............does TCP split the information into packets or does IP do that job.

Correct me if I am wrong but my analogy to this is like an unsliced birthday cake.

Before cutting the cake, marks are made on the icing of the cake with a knife to determine how many slices to cut {this would be like TCP}

then the knife actually cuts through the cake {this would be like IP cutting info into packets}.

IS THIS RIGHT......someone please correct me or better still, tell me if I am right or not.


Thanks

Beno

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Have a nice day

[kenja]

You're on the right track with your questioning, Beno, but have you heard of the 7-layer OSI networking model? Rather than freelancing an answer to your post, I did a web search for "OSI model". The first result I looked at is a two-page Adobe Acrobat file (http://www.itp-journals.com/nasample/t04124.pdf) that may concisely answer your questions.

[This message has been edited by kenja (edited 03-10-2001).]

[Beno]

Thanks Kenja for your help on this one

much appreciated :-))

Beno

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Have a nice day

[ixl]

In a nutshell...
TCP is a transport-layer (layer 4 in the OSI model) protocol that is responsible for connection establishment, error detection, flow control, and so forth.
IP is a network-layer (layer 3) protocol that is responsible for addressing and delivery of packets.
TCP creates data packets (datagrams) and sends them to IP. IP may then fragment them if needed to send down to the next lower layer (data link, layer 2) and will add its own headers. So packets exist at both layers.
This stuff isn't simple to explain in a nutshell. http://www.PCGuide.com/ubb/smile.gif

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Charles M. Kozierok
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