Transcript TCP/IP Protocol Suite

Benefits of Networking
&
Network administration
Benefits of Networking
Outline the benefits the network there are actually only 2, namely
"Sharing resources and as communication media".
1. As a media sharing network.
The main reason people share is due to limited resources
(computers) and the Fund. For example in an office there are
10 computers and if every employee in need of a printer, no
network, then the company need 10 printers, with the
network, so companies only need a shared printers pake
tenth employee. That means the company saves up to 90%
the cost of procurement of the printer only.
2. Network as a medium of communication
As a medium of communication, the network has become
one of the main medium of communication for most of Man.
Network administration
1. LAN
Local Area Network is a computer network whose network
covers only a small area, such as campus computer
networks, buildings, offices, in homes, schools or smaller.
LAN has the following characteristics:
1. Has a higher data rapidly
2. Covers a narrower geographical area
3. Does not require leased telecommunication lines from
telecom operators
Network administration
2. WAN
Wide Area Network is a computer network covering a large
area as an example of a computer network between regions,
cities or even countries, or can be defined as well as
computer networks require routers and public communication
channels.
WANs are used to connect a local network with other local
networks, so users or computers in one location can
communicate with users and computers in other locations
Network administration
3. Peer to Peer Networks
Peer to Peer Networks is a
computer network consisting of
several computers (usually no
more than 10 computers with
printers 1-2). In the preferred
system of this network is the use
of programs, data and printers
together.
Network administration
4. Client Server Networks
Server is a computer that provides facilities to other
computers on the network and the client is the computer that
receives or uses the facilities provided by the server. Server
in client-server type of network called a special server to act
as a pure server that provides the facility to the workstation
and the server can not serve as workstation.
-excellence : Higher-speed access, Security systems and
network administration better, Better data backup system
- Weakness : Operational costs are relatively more expensive,
Required the presence of one particular computer which
allows more to be assigned as a server, Viability depends on
the server network. If the server crashes the whole network
will be disrupted.
Networking Protocols
&
LAN Architectures
Networking Protocols
A protocol is a set of rules or standards or allow a relationship,
communication, and transfer data between two or more computer
points. Protocol can be implemented in hardware, software or a
combination of both. At the lowest level, the protocol defines a
hardware connection.
Networking Protocols
TCP/IP Protocol Suite
LAN Architectures
The network architecture consists of wiring, topology, packet
format and access methods. Architecture commonly used in cablebased LAN network is electrically, through the development of
optical technology is now also widely used fiber optic cable as an
alternative medium
LAN Architectures
1. Ethernet
Ethernet is a type of cabling and signal processing scenarios for
data computer network developed by Robert Metcalfe and David
Boggs at Xerox Palo Alto Research Center (PARC) in 1972.
Ethernet is intended to form a computer network. Because of its
simplicity and reliability, the Ethernet can survive until today, and
even into the network architecture of the most widely used.
LAN Architectures
2. DSL
DSL (Digital Subscriber Line) is a set of technologies that provide
digital data through the cable conductor used in the close proximity
of the local telephone network. Usually downolad speed of DSL
ranges from 128 kbit / d to 24 000 kb / d depending on the DSL
technology.
LAN Architectures
3. Cable Modems
Cable Modem is a hardware device that connects your PC with a
cable TV connection. Cable TV networks can be used to connect
to the internet with a maximum speed of 27Mbps downstream
(download speed to the user) and 2.5 Mbps upstream (upload
speed of the user). In order to use a cable modem, the computer
must be equipped with an ethernet card (Ethernet card).