Layer 1

Layer 2

Layer 3

Layer 4

Layer 5

Layer 6

Layer 7

Physical Layer Function

Data Link Layer Function

Network Layer Function

Transport Layer Function

Session Layer Function

Presentation Layer Function

Application Layer Function

Physical Layer Responsibility(ies)

Data Link Layer Responsibility(ies)

Network Layer Responsibility(ies)

Transport Layer Responsibility(ies)

Session Layer Responsibility(ies)

Presentation Layer Responsibility(ies)

Application Layer Responsibility(ies)