Relation between TCP/IP Model Layers and OSI Model Layers
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This is the relation between Four (4) layers of TCP/IP Model and Seven
(7) layers of OSI Model.
i.e. First Layer of TCP/IP Model is associated with 2 layers of OSI Model.
Second Layer of TCP/IP Model is associated with 1 layer of OSI Model.
Third Layer of TCP/IP Model is associated with 1 layer of OSI Model.
Fourth Layer of TCP/IP Model is associated with 3 layers of OSI Model.
Elaborating it further:
First Layer of TCP/IP Model, which is ‘Host-to-Network Layer’ or
‘Network Interface Layer’ is associated with first and second layers of
OSI Model, which are, ‘Physical Layer’- the first layer of OSI Model and
‘Data Link Layer’- the second layer of OSI Model.
Second Layer of TCP/IP Model, which is ‘Internet Layer’, is associated
with third layer of OSI Model, which is, ‘Network Layer’.
Third Layer of TCP/IP Model, which is ‘Transport Layer’, is associated
with fourth layer of OSI Model, which is, ‘Transport Layer’.
Fourth Layer of TCP/IP Model, which is ‘Application Layer’, is associated
with fifth, sixth and seventh layers of OSI Model, which are, ‘Session
Layer’- the fifth layer of OSI Model, ‘Presentation Layer’- the sixth layer
of OSI Model and ‘Data Link Layer’- the seventh layer of OSI Model.
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TCP/IP Model Layers OSI Model Layers
Layer- 1: Application Layer
Layer- 7: Application Layer
Layer- 6: Presentation Layer
Layer- 5: Session Layer
Layer- 3: Transport Layer Layer- 4: Transport Layer
Layer- 2: Internet Layer Layer- 3: Network Layer
Layer- 1: Host-to-Network Layer
(or Network Interface Layer)
Layer- 2: Data Link Layer
Layer- 1: Physical Layer