GOALS OF NETWORKING

PROTOCOLS

LAYERED ARCHITECTURE

THE OSI REFERENCE MODEL

Layer 1 - Physical Layer

Layer 2 - Data Link Layer

Layer 3 - Network Layer

Layer 4 - Transport Layer

Layer 5 - Session Layer

Layer 6 - Presentation Layer

Layer 7 - Application Layer


MODES OF SERVICE


CLIENTS AND SERVERS


SERVICES


SERVERS

CLIENTS


ADDRESSES