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what would happen if we dint have an application layer in the OSI layers?

4 New Member
hi

i need to know wat is the inportance of each of the OSI layers and wat wud happen if we dint have a purticular layer?? how will it affect our connection... can sum1 give me a detailed description.. i am thinkin of doin a project in networkin so i need to know d basics.....
Jun 29 '10 #1
5 2273
sicarie
4,677 Recognized Expert Moderator Specialist
Well, what do you think would happen? If the Application layer didn't exist, where would you put the things that currently go in there?

Maybe there'd be more reliance on alternate models?
Jun 29 '10 #2
tyagithehacker
24 New Member
hey dude here is the bare minimum requirment for any networking model.


Application layer
Transport layer
Network layer
Physical layer

we can compromise with all other layers, as per the requirment, but these 4 are must for any practical implimentation.
Hope i answered your question correctly, do inform me if i had not.
all the best for your project :-)
Jul 2 '10 #3
sicarie
4,677 Recognized Expert Moderator Specialist
Hmmm, as I posted earlier, seems to look a lot like another standard out there...

But his question also included the impact that would have - what do you do without the other layers? Where do you draw the lines between combining layers?
Jul 2 '10 #4
tyagithehacker
24 New Member
@sicarie
>>>>Applicati on layer
Transport layer

both communicates with network layer through OS's system calls.

>>>>Network layer

network layer communicates with physical layer through DIVICE DRIVERS.

Physical layer.
Jul 13 '10 #5
sicarie
4,677 Recognized Expert Moderator Specialist
Hmmm, why would the Application layer speak directly to the Network layer? What then is the purpose of the Transport layer if it can be so easily bypassed?
Jul 13 '10 #6

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