Mas Kukuh, coba trauble shotnya berdasarkan OSI 7 layer.
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The seven layers of the OSI Basic Reference Model are (from bottom to top):
1. The Physical Layer describes the physical properties of the various
communications media, as well as the electrical properties and
interpretation of the exchanged signals. Ex: this layer defines the
size of Ethernet coaxial cable, the type of BNC connector used, and
the termination method.
2. The Data Link Layer describes the logical organization of data bits
transmitted on a particular medium. Ex: this layer defines the
framing, addressing and checksumming of Ethernet packets.
3. The Network Layer describes how a series of exchanges over various
data links can deliver data between any two nodes in a network. Ex:
this layer defines the addressing and routing structure of the
Internet.
4. The Transport Layer describes the quality and nature of the data
delivery. Ex: this layer defines if and how retransmissions will be
used to ensure data delivery.
5. The Session Layer describes the organization of data sequences
larger than the packets handled by lower layers. Ex: this layer
describes how request and reply packets are paired in a remote
procedure call.
6. The Presentation Layer describes the syntax of data being
transferred. Ex: this layer describes how floating point numbers can
be exchanged between hosts with different math formats.
7. The Application Layer describes how real work actually gets done.
Ex: this layer would implement file system operations.
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rgds,
Budiman
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